Details of the Researcher

PHOTO

Tomoyuki Fujii
Section
Graduate School of Agricultural Science
Job title
Professor
Degree
  • 博士(農学)(東京大学)

  • 農学修士(東京大学)

Research History 6

  • 2009/05 - Present
    Tohoku University Graduate School of Agricultural Science

  • 2008/04 - 2009/04
    Maebashi Institute of Technology Faculty of Engineering

  • 2005/01 - 2008/03
    Niigata University of Pharmacy and Applied Life Sciences Faculty of Applied Life Sciences

  • 2002/04 - 2005/01
    Niigata University of Pharmacy and Applied Life Sciences Faculty of Applied Life Sciences

  • 1996/04 - 2002/03
    The University of Tokyo Graduate School of Agricultural and Life Sciences

  • 1990/04 - 1996/03
    The University of Tokyo

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Education 3

  • The University of Tokyo

    1987/04 - 1990/03

  • The University of Tokyo

    1985/04 - 1987/03

  • The University of Tokyo College of Arts and Sciences

    1983/04 - 1985/03

Committee Memberships 9

  • 日本応用糖質科学会 東北支部長

    2020/06 - Present

  • 日本バイオインダストリー協会 バイオエンジニアリング研究会会長

    2018/06 - Present

  • 東北経済連合会ビジネスセンター 技術評価チームフェロー

    2011/05 - Present

  • 日本食品科学工学会 評議員

    2010/04 - Present

  • 新潟薬科大学 客員教授

    2009/04 - Present

  • 日本食品工学会 評議員

    2004/08 - Present

  • 日本食品科学工学会 理事

    2016/04 - 2020/05

  • 日本農芸化学会 学術活動強化委員会委員

    2011/04 - 2015/03

  • 前橋工科大学 客員教授

    2010/10 - 2013/03

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Professional Memberships 6

  • 日本熱物性学会

    1992/04 - Present

  • 日本応用糖質科学会

  • 日本食品科学工学会

  • 化学工学会

  • 日本食品工学会

  • 日本農芸化学会

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Research Interests 2

  • 生物工学

  • 食品工学

Research Areas 3

  • Environmental science/Agricultural science / Landscape science /

  • Environmental science/Agricultural science / Environmental agriculture /

  • Life sciences / Food sciences /

Awards 3

  1. 日本食品工学会第11回大会(2010年度)優秀口頭発表賞

    2010/08 日本食品工学会 ダイズ中のGABA生成挙動に及ぼす高圧の影響

  2. 日本食品工学会2008年度論文賞

    2008/08 日本食品工学会 高圧熱水処理によるデンプンの部分分解反応の速度論的解析

  3. 農芸化学奨励賞

    2004/03 日本農芸化学会 食品膜利用プロセスの工学的基盤研究

Papers 90

  1. State analysis of a biobased hydrogel subjected to freeze and thaw processes by X ray absorption spectroscopy using synchrotron radiation. International-journal

    Kana Monta, Masafumi Hidaka, Daitaro Ishikawa, Tomoyuki Fujii

    Scientific reports 14 (1) 26731-26731 2024/11/05

    DOI: 10.1038/s41598-024-76152-z  

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    Freezing hydrogels can compromise their network structures and modify their properties as a result of ice crystal formation. Therefore, understanding the internal structure, including ice crystals and the state of chemical components within hydrogels, is essential. In this study, we evaluated the elemental distribution in bio-based hydrogels subjected to freezing-thaw process using X-ray absorption spectroscopy with synchrotron radiation. A bio-based hydrogel, prepared from Alaska pollock, underwent both slow and rapid freezing processes. Tomographic images and linear X-ray absorption coefficient distributions of the rapidly frozen hydrogel displayed a uniform image with a mean absorption coefficient of 2.81 cm-1. Conversely, the slowly frozen sample exhibited distinct contrasts with peaks at 2.516 cm-1 (dark) and 3.691 cm-1 (bright), occupying 28% and 72% of the image, respectively. The mean absorption coefficient of the slowly frozen sample was comparable to that of the rapidly frozen sample, indicating no elemental loss. The elements within the hydrogel were categorized into organic elements, macrominerals, and trace elements. The bright areas in the images were attributed to the concentration of macrominerals. Notably, Cl and Na were the primary contributors to the absorption coefficients among the elements present, signifying salt migration during freezing. These findings suggest that the contrast observed in X-ray computed tomography images after freezing reflects the elemental distribution within the hydrogel and successfully demonstrates element localization due to cryoconcentration.

  2. Quantification of Starch Order in Physically Modified Rice Flours Using Small-Angle X-ray Scattering (SAXS) and Fourier Transform Infrared (FT-IR) Spectroscopy

    Daitaro Ishikawa, Jiamin Yang, Tomoyuki Fujii

    Applied Spectroscopy 75 (8) 1033-1042 2021/08/01

    Publisher: SAGE Publications Inc.

    DOI: 10.1177/00037028211028278  

    ISSN: 1943-3530 0003-7028

  3. Evaluation of solid state of rice flours produced by different milling processes using ATR-FTIR spectroscopy Peer-reviewed

    Daitaro Ishikawa, Jiamin Yang, Chiaki Ichikawa, Tomoyuki Fujii

    Bioscience, Biotechnology, and Biochemistry 85 (5) 1056-1062 2021/04/24

    Publisher: Oxford University Press (OUP)

    DOI: 10.1093/bbb/zbab003  

    eISSN: 1347-6947

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    <title>ABSTRACT</title> This study evaluated the influence of the milling process on solid state of rice flours according to water activity using ATR-FTIR. A band at 1740 cm−1 attributed to the C=O stretching of lipids was detected for crystalline samples, and it disappeared at a high aw range. The CH band at 2930 cm−1 of crystalline samples gradually shifted to a higher wavenumber with aw. This band of the α-formed and wet-milled samples shifted to higher wavenumbers above 0.8aw. A band due to OH stretching mode in the 3500-3000 cm−1 region did not shift with aw. The result obtained from IR spectra suggests that the parameter K calculated by Guggenheim–Anderson–de Boar model reflected not only the interaction between water molecules but also the changes of state in solids. Consequently, the results from this study provide insights about the adsorption properties of nonideal solids such as rice flour.

  4. Phenomenological analysis on whipping behavior of rice flour batter Peer-reviewed

    C. Ichikawa, D. Ishikawa, Y. Jiamin, T. Fujii

    Journal of Food Science 85 (12) 4327-4334 2020/12

  5. ゲル状食品の弾性/破断解析 Peer-reviewed

    鬼島直子, 砂押 諒, 真坂知克, 石川大太郎, 藤井智幸

    日本食品科学工学会誌 67 (7) 217-229 2020/07

  6. Elastic and rupture analysis on food gels

    Naoko Kijima, Ryo Sunaoshi, Tomoaki Masaka, Daitaro Ishikawa, Tomoyuki Fujii

    Nippon Shokuhin Kagaku Kogaku Kaishi 67 (7) 217-229 2020

    Publisher: Japanese Society for Food Science and Technology

    DOI: 10.3136/nskkk.67.217  

    ISSN: 1341-027X

  7. High pressure induced effects on free amino acid generation in mung bean sprouts during preservation after trigger pressurization

    Daitaro Ishikawa, Ikumi Shigihara, Ran Nakai, Haruka Tamate, Yoshihiro Tsukada, Tomoyuki Fujii

    Food Science and Technology Research 25 (1) 49-55 2019

    Publisher: Japanese Society for Food Science and Technology

    DOI: 10.3136/fstr.25.49  

    ISSN: 1344-6606

  8. High pressure induced effects on free amino acid generation for mung beans sprout during preservation after short time pressurization Peer-reviewed

    D. Ishikawa, I. Shigihara, R. Nakai, H. Tamate, Y. Tsukada, T. Fujii

    Food Science and Technology Research 25 (1) 49-55 2019/01

  9. Effect of oleosins on the stability of oil bodies in soymilk Peer-reviewed

    S. Idogawa, N. Abe, K. Abe, T. Fujii

    Food Science and Technology Research 24 (4) 677-685 2018/07

  10. Analysis of change in powder properties of rice flour by different milling processes Peer-reviewed

    D. Ishikawa, I. Sawa, Y. Sekiyama, A. Horigane, T. Okunishi, K. Fujii, T. Fujii

    Journal of Applied Glycoscience 64 (4) 109-144 2017/10

  11. Influence of acidity regulators on the stability of a soymilk colloidal dispersion system Peer-reviewed

    K. Sato, S. Idogawa, T. Fujii

    Japan Journal of Food Engineering 18 (4) 177-184 2017/10

  12. Estimation method of moisture content at the meat surface during drying process by nir spectroscopy and its application for monitoring of water activity Peer-reviewed

    Daitaro Ishikawa, Genjiro Ueno, Tomoyuki Fujii

    Japan Journal of Food Engineering 18 (3) 135-143 2017/09/01

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe.17493  

    ISSN: 1345-7942

  13. Effects of Alkaline Deamidation on the Chemical Properties of Rice Bran Protein Peer-reviewed

    Jingtao Guan, Ryunosuke Taikai, Kohei Toraya, Tomohisa Ogawa, Koji Muramoto, Satoshi Mohri, Daitaro Ishikawa, Tomoyuki Fujii, Hyun Chi, Seong-Jun Cho

    FOOD SCIENCE AND TECHNOLOGY RESEARCH 23 (5) 697-704 2017/09

    DOI: 10.3136/fstr.23.697  

    ISSN: 1344-6606

  14. Monitoring of water activity in the vicinity of meat surface under drying process by NIR spectroscopy Peer-reviewed

    D. Ishikawa, G. Ueno, T. Fujii

    18 (3) 135-143 2017/07

  15. Engineering analysis of the high-density heterotrophic cultivation of mung bean sprouts Peer-reviewed

    Haruka Tamate, Ran Nakai, Yasuyuki Nakamori, Masahiro Esashi, Yasushi Iwamoto, Yoshihiro Tsukada, Mika Saito, Daitaro Ishikawa, Tomoyuki Fujii

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 80 (8) 1602-1608 2016/08

    DOI: 10.1080/09168451.2016.1176518  

    ISSN: 0916-8451

    eISSN: 1347-6947

  16. 高付加価値豆乳加工製品の研究開発 Invited

    藤井智幸, 阿部敬悦, 宮澤陽夫

    JATAFFジャーナル 4 (8) 18-24 2016/08

  17. Engineering analysis of growth behavior of the high density heterotrophic cultivation of mung bean sprouts Peer-reviewed

    Haruka Tamate, Ran Nakai, Yasuyuki Nakamori, Masahiro Esashi, Yasushi Iwamoto, Yoshihiro Tsukada, Daitaro Ishikawa, Tomoyuki Fujii

    Japan Journal of Food Engineering 16 (3) 219-229 2016/04/08

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe.16.219  

    ISSN: 1345-7942

  18. The study on the quality evaluation method for beef cut by using visible and near infrared spectroscopies Peer-reviewed

    Daitaro Ishikawa, Genjiro Ueno, Tomoyuki Fujii

    Engineering in Agriculture, Environment and Food 9 (2) 195-199 2016/04/01

    Publisher: Elsevier

    DOI: 10.1016/j.eaef.2015.12.001  

    ISSN: 1881-8366

  19. Kinetic study on the thermal resistance of E. Coli cultivated by soybean extract added medium Peer-reviewed

    Daitaro Ishikawa, Hiroaki Kotani, Tomoyuki Fujii, Keiko Fujii

    Japan Journal of Food Engineering 17 (1) 1-7 2016

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe.17.1  

    ISSN: 1345-7942

  20. Influence of pH on the Colloidal Stability of Soymilk Peer-reviewed

    Kanako Oizumi, Shiori Idogawa, Yasushi Iwamoto, Kensuke Ito, Tomoyuki Fujii

    JOURNAL OF THE JAPANESE SOCIETY FOR FOOD SCIENCE AND TECHNOLOGY-NIPPON SHOKUHIN KAGAKU KOGAKU KAISHI 63 (4) 142-149 2016

    DOI: 10.3136/nskkk.63.142  

    ISSN: 1341-027X

  21. Effect of oxygen concentration in gas phase on the heterotrophic cultivation behavior of mung bean sprouts Peer-reviewed

    Ran Nakai, Haruka Tamate, Yasuyuki Nakamori, Masahiro Esashi, Yasushi Iwamoto, Yoshihiro Tsukada, Daitaro Ishikawa, Tomoyuki Fujii

    Japan Journal of Food Engineering 17 (2) 41-49 2016

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe.17.41  

    ISSN: 1345-7942

  22. Effects of High Hydrostatic Pressure on Water Absorption of Adzuki Beans. International-journal Peer-reviewed

    Shigeaki Ueno, Toru Shigematsu, Mineko Karo, Mayumi Hayashi, Tomoyuki Fujii

    Foods (Basel, Switzerland) 4 (2) 148-158 2015/05/14

    DOI: 10.3390/foods4020148  

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    The effect of high hydrostatic pressure (HHP) treatment on dried soybean, adzuki bean, and kintoki kidney bean, which are low-moisture-content cellular biological materials, was investigated from the viewpoint of water absorption. The samples were vacuum-packed with distilled water and pressurized at 200 MPa and 25 °C for 10 min. After the HHP treatment, time courses of the moisture contents of the samples were measured, and the dimensionless moisture contents were estimated. Water absorption in the case of soybean could be fitted well by a simple water diffusion model. High pressures were found to have negligible effects on water absorption into the cotyledon of soybean and kintoki kidney bean. A non-linear least square method based on the Weibull equation was applied for the adzuki beans, and the effective water diffusion coefficient was found to increase significantly from 8.6 × 10-13 to 6.7 × 10-10 m²/s after HHP treatment. Approximately 30% of the testa of the adzuki bean was damaged upon HHP treatment, which was comparable to the surface area of the testa in the partially peeled adzuki bean sample. Thus, HHP was confirmed to promote mass transfer to the cotyledon of legumes with a tight testa.

  23. Effects of emulsifying components in the continuous phase of cream on the stability of fat globules and the physical properties of whipped cream Peer-reviewed

    K. Ihara, M. Hirota, T. Akitsu, K. Urakawa, T. Abe, M. Sumi, T. Okawa, T. Fujii

    JOURNAL OF DAIRY SCIENCE 98 (5) 2875-2883 2015/05

    DOI: 10.3168/jds.2014-8870  

    ISSN: 0022-0302

    eISSN: 1525-3198

  24. Rheological Analysis of the Aggregation Behavior of a Soymilk Colloidal System Peer-reviewed

    Shiori Idogawa, Tomoyuki Fujii

    FOOD SCIENCE AND TECHNOLOGY RESEARCH 21 (3) 479-487 2015/05

    DOI: 10.3136/fstr.21.479  

    ISSN: 1344-6606

  25. Degradation of fish gelatin using hot-compressed water and the properties of the degradation products Peer-reviewed

    Shigeaki Ueno, Hirokazu Ichinoi, Jiahui Zhao, Tomoyuki Fujii

    HIGH PRESSURE RESEARCH 35 (2) 203-213 2015/04

    DOI: 10.1080/08957959.2015.1023197  

    ISSN: 0895-7959

    eISSN: 1477-2299

  26. Development of an efficient soymilk cream production method by papain digestion, heat treatment, and low-speed centrifugation Peer-reviewed

    Naoki Abe, Chang-Yu Wu, Yoon-Kyung Kim, Tomoyuki Fujii, Keietsu Abe

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 79 (11) 1890-1892 2015

    DOI: 10.1080/09168451.2015.1050990  

    ISSN: 0916-8451

    eISSN: 1347-6947

  27. Distribution of beta-carotene-encapsulated polysorbate 80-coated poly(D, L-lactide-co-glycolide) nanoparticles in rodent tissues following intravenous administration Peer-reviewed

    Taiki Miyazawa, Kiyotaka Nakagawa, Takahiro Harigae, Ryo Onuma, Fumiko Kimura, Tomoyuki Fujii, Teruo Miyazawa

    INTERNATIONAL JOURNAL OF NANOMEDICINE 10 7223-7230 2015

    DOI: 10.2147/IJN.S94336  

    ISSN: 1178-2013

  28. Heat treatment of egg white controls allergic symptoms and induces oral tolerance to ovalbumin in a murine model of food allergy Peer-reviewed

    Hiroko Watanabe, Masako Toda, Haruko Sekido, Anne Wellner, Tomoyuki Fujii, Thomas Henle, Satoshi Hachimura, Haruyo Nakajima-Adachi

    MOLECULAR NUTRITION & FOOD RESEARCH 58 (2) 394-404 2014/02

    DOI: 10.1002/mnfr.201300205  

    ISSN: 1613-4125

    eISSN: 1613-4133

  29. Importance of cell damage causing growth delay for high pressure inactivation of Saccharomyces cerevisiae Peer-reviewed

    Masaru Nanba, Kazuki Nomura, Yusuke Nasuhara, Manabu Hayashi, Miyuki Kido, Mayumi Hayashi, Akinori Iguchi, Toru Shigematsu, Masao Hirayama, Shigeaki Ueno, Tomoyuki Fujii

    HIGH PRESSURE RESEARCH 33 (2) 299-307 2013/06

    DOI: 10.1080/08957959.2013.781596  

    ISSN: 0895-7959

    eISSN: 1477-2299

  30. Influence of osmotic and cationic stresses on high pressure inactivation of Escherichia coli Peer-reviewed

    Toshimi Hasegawa, Takuya Nakamura, Mayumi Hayashi, Miyuki Kido, Masao Hirayama, Toshio Yamaguchi, Akinori Iguchi, Shigeaki Ueno, Toru Shigematsu, Tomoyuki Fujii

    HIGH PRESSURE RESEARCH 33 (2) 292-298 2013/06

    DOI: 10.1080/08957959.2013.800513  

    ISSN: 0895-7959

    eISSN: 1477-2299

  31. Enzymatic Production of gamma-Aminobutyric Acid in Soybeans Using High Hydrostatic Pressure and Precursor Feeding Peer-reviewed

    Shigeaki Ueno, Takumi Katayama, Takae Watanabe, Kanako Nakajima, Mayumi Hayashi, Tom Shigematsu, Tomoyuki Fujii

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 77 (4) 706-713 2013/04

    DOI: 10.1271/bbb.120740  

    ISSN: 0916-8451

    eISSN: 1347-6947

  32. Filtration behavior during soymilk separation process Peer-reviewed

    Shiori Idogawa, Kensuke Ito, Tomoyuki Fujii

    Food Science and Technology Research 19 (6) 1071-1075 2013

    DOI: 10.3136/fstr.19.1071  

    ISSN: 1344-6606

  33. High-throughput method for a kinetics analysis of the high-pressure inactivation of microorganisms using microplates Peer-reviewed

    Toshimi Hasegawa, Manabu Hayashi, Kazuki Nomura, Mayumi Hayashi, Miyuki Kido, Tsuneo Ohmori, Masao Fukuda, Akinori Iguchi, Shigeaki Ueno, Toru Shigematsu, Masao Hirayama, Tomoyuki Fujii

    JOURNAL OF BIOSCIENCE AND BIOENGINEERING 113 (6) 788-791 2012/06

    DOI: 10.1016/j.jbiosc.2012.02.001  

    ISSN: 1389-1723

    eISSN: 1347-4421

  34. Errata: Treatment of Household Food Waste at High Temperature and High Pressure, and Utilization of the Resulting Material as Pig and Chicken Feeds

    Ishimori Takateru, Saravanan Ayyakkannu, Sanada Toshiyuki, Jho Toshio, Fujimura Shinobu, Nishiumi Tadayuki, Imai Akio, Fujii Tomoyuki, Sato Hideyuki, Kojima Hiroaki, Hori Hidetaka

    Journal of the Japan Society of Waste Management Experts 23 (3) 154-155 2012

    Publisher: Japan Society of Material Cycles and Waste Management

    DOI: 10.3985/jjsmcwm.er1100502  

    ISSN: 1883-5856

  35. 米粉の微細構造 Invited Peer-reviewed

    藤井智幸

    応用糖質科学 2 (2) 92-96 2012

    DOI: 10.5458/bag.2.2_92  

  36. Evaluation of powder and hydration properties of rice flour milled by different techniques Peer-reviewed

    Naoki Shoji, Yukihiro Hanyu, Satoshi Mohri, Sakiko Hatanaka, Masaaki Ikeda, Chiyuki Togashi, Tomoyuki Fujii

    Nippon Shokuhin Kagaku Kogaku Kaishi 59 (4) 192-198 2012

    DOI: 10.3136/nskkk.59.192  

    ISSN: 1341-027X

  37. Bioconversion of glutamic acid to gamma-aminobutyric acid in soybean by high pressure with precursor feeding Peer-reviewed

    S. Ueno, T. Katayama, T. Watanabe, K. Nakajima, M. Hayashi, T. Shigematsu, T. Fujii

    Procedia Food Science 1 (1) 842-846 2011

  38. Kinetic Analysis of E. coli Inactivation by High Hydrostatic Pressure with Salts Peer-reviewed

    Shigeaki Ueno, Toru Shigematsu, Toshimi Hasegawa, Jun Higashi, Mayumi Anzai, Mayumi Hayashi, Tomoyuki Fujii

    JOURNAL OF FOOD SCIENCE 76 (1) M47-M53 2011/01

    DOI: 10.1111/j.1750-3841.2010.01927.x  

    ISSN: 0022-1147

  39. 高温・高圧蒸煮した家庭生ゴミの成分組成および飼料母剤としての再利用 Peer-reviewed

    石森崇晃, Ayyakkannu Saravanan, 眞田敏宏, 城斗志夫, 藤村忍, 西海理之, 今井明夫, 藤井智幸, 佐藤英行, 小嶋洋朗, 堀秀隆

    廃棄物資源循環学会論文誌 22 (4) 253-266 2011

    Publisher: Japan Society of Material Cycles and Waste Management

    DOI: 10.3985/jjsmcwm.22.253  

    ISSN: 1883-5856

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    Food wastes from households were treated with steam at 150 °C for 40 minutes (150SFW) or at 200 °C for 150 minutes (200SFW), and the possibilities of developing the resulting materials into livestock feeds were researched. Both SFWs were shown to be composed about 20% of proteins and 20% of lipids, which are higher than the ratios of commercial diets for finishing pigs. On the other hand, pepsin digestibility of both SFWs was 26-56%, which was lower than that of a commercial diet. To estimate the applicability of SFWs as feed, eight pigs, each weighing approximately 70kg, were divided into test and control groups of four pigs each. In the test group, the pigs were fed diets that were 20% 200SFW for an initial 29 days and were subsequently fed diets that were 15% 150SFW until they reached 110±5kg. Pigs were fed diets without SFWs in the control group. The daily gains (DG) of two pigs in the test group were similar to those of pigs in the control group through the test period. The other two pigs in the test group had relatively lower DG when 200SFW was given, but ultimately reached 110±5kg 29-46 days later than pigs in the control group.

  40. Isolation and Characterization of Barosensitive Mutants of Saccharomyces cerevisiae Obtained by UV Mutagenesis Peer-reviewed

    Toru Shigematsu, Yusuke Nasuhara, Gen Nagai, Kazuki Nomura, Kenta Ikarashi, Masao Hirayama, Mayumi Hayashi, Shigeaki Ueno, Tomoyuki Fujii

    JOURNAL OF FOOD SCIENCE 75 (8) M509-M514 2010/10

    DOI: 10.1111/j.1750-3841.2010.01789.x  

    ISSN: 0022-1147

    eISSN: 1750-3841

  41. Enzymatic oxidative polymerization of methoxyphenols Peer-reviewed

    Takaaki Tanaka, Masafumi Takahashi, Hiroyuki Hagino, Shin-Ichi Nudejima, Hisaki Usui, Tomoyuki Fujii, Masayuki Taniguchi

    CHEMICAL ENGINEERING SCIENCE 65 (1) 569-573 2010/01

    DOI: 10.1016/j.ces.2009.05.041  

    ISSN: 0009-2509

  42. Generation of Free Amino Acids and gamma-Aminobutyric Acid in Water-Soaked Soybean by High-Hydrostatic Pressure Processing Peer-reviewed

    Shigeaki Ueno, Toru Shigematsu, Takae Watanabe, Kanako Nakajima, Mina Murakami, Mayumi Hayashi, Tomoyuki Fujii

    JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 58 (2) 1208-1213 2010/01

    DOI: 10.1021/jf903102t  

    ISSN: 0021-8561

  43. Effects of High Hydrostatic Pressure on Distribution Dynamics of Free Amino Acids in Water Soaked Brown Rice Grain Peer-reviewed

    T. Shigematsu, M. Hayashi, K. Nakajima, Y. Uno, A. Sakano, M. Murakami, Y. Narahara, S. Ueno, T. Fujii

    INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT AIRAPT-22 AND HPCJ-50 215 012171 2010

    DOI: 10.1088/1742-6596/215/1/012171  

    ISSN: 1742-6588

  44. Bioconversion of Glutamic acid to γ-Aminobutyric acid (GABA) in Brown Rice Grains Induced by High Pressure Treatment Peer-reviewed

    SHIGEMATSU Toru, MURAKAMI Mina, NAKAJIMA Kanako, UNO Yoshiyuki, SAKANO Arata, NARAHARA Yuka, HAYASHI Mayumi, UENO Shigeaki, FUJII Tomoyuki

    Japan Journal of Food Engineering 11 (4) 189-199 2010

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe.11.189  

    ISSN: 1345-7942

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    In this study, we supplied glutamic acid (Glu) into brown rice grains and allowed an enzymatic conversion from Glu to γ-aminobutyric acid (GABA) due to biosynthesis induced by high pressure (HP) treatment. The distribution of free amino acids in water-soaked brown rice grains during preservation after HP treatment at 200 MPa for 10 min was analyzed. The free amino acid distribution of HP-treated samples, just after HP treatment, showed no apparent difference from that of untreated control without HP treatment. However, during 4 days preservation at 25℃ after HP treatment, certain amino acids including GABA in the HP-treated samples increased with time and showed higher concentrations than those in untreated samples. To investigate the feasibility for use of HP-treated brown rice grains as a bioreactor producing GABA, Glu was supplied into brown rice grains during water soaking and applied for HP treatment. The GABA concentrations during preservation increased with the increase in the Glu concentrations in the soaking solutions. The initial GABA production rate was accelerated by HP treatment. These results provide feasibility for a novel use of HP technology to alter the metabolic pathways in a cellular biological material and to accumulate useful metabolites.

  45. Thermosensitivity of a barosensitive Saccharomyces cerevisiae mutant obtained by UV mutagenesis Peer-reviewed

    Toru Shigematsu, Kazuki Nomura, Yusuke Nasuhara, Kenta Ikarashi, Gen Nagai, Masao Hirayama, Mayumi Hayashi, Shigeaki Ueno, Tomoyuki Fujii

    HIGH PRESSURE RESEARCH 30 (4) 524-529 2010

    DOI: 10.1080/08957959.2010.539568  

    ISSN: 0895-7959

    eISSN: 1477-2299

  46. A culture-dependent bacterial community structure analysis based on liquid cultivation and its application to a marine environment Peer-reviewed

    Toru Shigematsu, Mayumi Hayashi, Isamu Kikuchi, Shigeaki Ueno, Haruhiko Masaki, Tomoyuki Fujii

    JOURNAL OF BIOSCIENCE AND BIOENGINEERING 108 S78-S78 2009/11

    DOI: 10.1016/j.jbiosc.2009.08.228  

    ISSN: 1389-1723

  47. Estimation of Damage to Cells of Japanese Radish Induced by High Pressure with Drying Rate as Index Peer-reviewed

    Shigeaki Ueno, Toru Izumi, Tomoyuki Fujii

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 73 (8) 1699-1703 2009/08

    DOI: 10.1271/bbb.80613  

    ISSN: 0916-8451

    eISSN: 1347-6947

  48. A culture-dependent bacterial community structure analysis based on liquid cultivation and its application to a marine environment International-journal Peer-reviewed

    Toru Shigematsu, Mayumi Hayashi, Isamu Kikuchi, Shigeaki Ueno, Haruhiko Masaki, Tomoyuki Fujii

    FEMS Microbiology Letters 293 (2) 240-247 2009/04

    DOI: 10.1111/j.1574-6968.2009.01536.x  

    ISSN: 0378-1097

    eISSN: 1574-6968

  49. Formation of Green-Blue Compounds in Brassica rapa Root by High Pressure Processing and Subsequent Storage Peer-reviewed

    Shigeaki Ueno, Mayumi Hayashi, Toru Shigematsu, Tomoyuki Fujii

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 73 (4) 943-945 2009/04

    DOI: 10.1271/bbb.80745  

    ISSN: 0916-8451

    eISSN: 1347-6947

  50. High-Pressure Induced Transformation of Onion Peer-reviewed

    UENO Shigeaki, SHIGEMATSU Toru, KUGA Kentarou, SAITO Megumi, HAYASHI Mayumi, FUJII Tomoyuki

    Japan Journal of Food Engineering 10 (1) 37-43 2009

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe.10.37  

    ISSN: 1345-7942

    More details Close

    High-pressure effect on the properties of onion was investigated. The dielectric properties of high-pressure treated onion were measured at 50 Hz- 5 MHz. Radius of Cole-Cole arcs of high-pressure treated samples were smaller than untreated. Radius of treated onion completely disappeared at 400 MPa. This indicated that cell structure would be damaged by high-pressure treatment. Next influences of high-pressure treatment on functional properties were analyzed. Antioxidative activities of high-pressure treated onion at 200 or 400 MPa were increased during storage at 25℃. The constituents of high-pressure treated onion were analyzed by HPLC. Scatter plot between high-pressure treated and untreated peak area ratio (sample peak area/internal standard peak area) were analyzed. Area ratios of untreated samples were plotted on x-axis and those of high-pressure treated were on y-axis according to the retention time. The slope with the retention time of 27.3 min was over 1.0. This indicated that the slope over 1.0 was positive-affected by high-pressure treatment. The ingredient with the retention time of 27.3 min was identified as quercetin. Scatter plot was a novel tool to extract the high-pressure effected substances from multiple and unidentified data. These changes of structural and functional properties of foodstuffs are defined as "High-Pressure Induced Transformation (Hi-Pit)."

  51. Kinetic Analysis of Partial Decomposition of Starch in Hot-Compressed Water Peer-reviewed

    UENO Shigeaki, ANZAI Mayumi, SHIGEMATSU Toru, FUJII Tomoyuki

    Japan Journal of Food Engineering 9 (3) 143-150 2008

    Publisher: Japan Society for Food Engineering

    DOI: 10.11301/jsfe2000.9.143  

    ISSN: 1345-7942

    More details Close

    The partial decomposition reaction of starch in hot-compressed water was studied using a tubular reactor at 160-210&deg;C and 25-45 MPa. The increase rate of reducing sugar concentrations at short residence times was considered as initial reaction rate of partial decomposition. The kinetic analysis of the initial reaction rate indicated that the reaction mechanism over 190&deg;C was different from that below 180&deg;C . The reaction mechanism over 190&deg;C could be expressed by bimolecular reaction between starch and ionized water. The activation energies for starch partial decomposition were about 120 kJ/mol, which was almost the same as the activation energies of maltose and isomaltose hydrolysis. The activation volumes were equivalent to the volume of a few water molecules, suggesting that the reaction proceeded like the gas phase reactions. In contrast, the reaction mechanism below 180&deg;C could be expressed by multimolecular reaction. The activation volumes were significantly larger than those over 190&deg;C . The large activation volume below 180&deg;C suggested that the reaction proceeded, like the liquid phase reactions, with solvent effect between starch and multiple water molecules.

  52. Comparative analyses of viable bacterial counts in foods and Seawater under microplate based liquid- and conventional agar plate cultivation: Increased culturability of marine bacteria under liquid cultivation Peer-reviewed

    Toru Shigematsu, Shigeaki Ueno, Yasuharu Tsuchida, Mayumi Hayashi, Hiroko Okonogi, Haruhiko Masaki, Tomoyuki Fujii

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 71 (12) 3093-3097 2007/12

    DOI: 10.1271/bbb.70376  

    ISSN: 0916-8451

    eISSN: 1347-6947

  53. Engineering Studies on High-Pressure Induced Transformation of Rice Peer-reviewed

    Ueno Shigeaki, Shigematsu Toru, Murakami Mina, Narahara Yuka, Fujii Tomoyuki

    High Pressure Bioscience and Biotechnology 1 (1) 308-314 2007

    Publisher: Japanese Research Group of High Pressure Bioscience and Biotechnology

    DOI: 10.11229/hpbb.1.308  

    More details Close

    A novel high-performance accumulation method for target compound was investigated in brown rice. &gamma;-Aminobutyric acid (GABA) concentration soaked in glutamic acid solution increased significantly. By utilizing high pressure treatment on brown rice soaked in glutamic acid solution, GABA concentration during preservation increased 31 times as much as that of water soaked on day 0. The combined processing of soaking in the precursor solution and high-pressure treatment of food materials would be a novel technique to increase functional compounds.

  54. ボールミル処理によるデンプンの構造変化と処理後の貯蔵中に起きる変化との関連について

    安斎真由美, 深見健, 藤井智幸, 渡辺学, 鈴木徹

    日本食品保蔵科学会大会講演要旨集 56th 48 2007

  55. 食品・農産物へのユニークな高圧の効果 Invited

    藤井智幸

    食品工業 50 (10) 23-29 2007

  56. Inactivation of Bacillus subtilis spores by a combination of hydrostatic high-pressure and pulsed electric field treatments Peer-reviewed

    Akihiko Sasagawa, Jun Hoshino, Tomoyuki Fujii, Akira Yamazaki, Takayuki Ohshima, Akifumi Yamada, Atsushi Kobayashi, Masayuki Sato

    Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu 16 (1) 45-53 2006

    DOI: 10.4131/jshpreview.16.45  

    ISSN: 0917-639X 1348-1940

  57. Fermentation control of kimchi by high-pressure treatment and characteristics Peer-reviewed

    Akihiko Sasagawa, Jun Hoshino, Atsushi Kobayashi, Tadayuki Nishiumi, Atsushi Suzuki, Tomoyuki Fujii, Tetsuya Konishi, Akira Yamazaki, Akifumi Yamada

    Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu 16 (2) 167-178 2006

    DOI: 10.4131/jshpreview.16.167  

    ISSN: 0917-639X 1348-1940

  58. Analysis of ice structure formed in frozen agar gel Peer-reviewed

    O Miyawaki, T Fujii, Y Shimiya

    FOOD SCIENCE AND TECHNOLOGY RESEARCH 10 (4) 437-441 2004/11

    DOI: 10.3136/fstr.10.437  

    ISSN: 1344-6606

  59. Engineering studies on membrane and membrane processes for food industry Invited Peer-reviewed

    Tomoyuki Fujii

    Nippon Nogeikagaku Kaishi 78 (12) 1148-1155 2004

    Publisher: Japan Society for Bioscience Biotechnology and Agrochemistry

    DOI: 10.1271/nogeikagaku1924.78.1148  

    ISSN: 0002-1407

  60. Treatment of nonylphenol with laccase in a rotating reactor Peer-reviewed

    T Tanaka, M Nose, A Endo, T Fujii, M Taniguchi

    JOURNAL OF BIOSCIENCE AND BIOENGINEERING 96 (6) 541-546 2003/12

    ISSN: 1389-1723

  61. Freezing injury and rheological properties of agricultural products Peer-reviewed

    S Ohnishi, T Fujii, O Miyawaki

    FOOD SCIENCE AND TECHNOLOGY RESEARCH 9 (4) 367-371 2003/11

    DOI: 10.3136/fstr.9.367  

    ISSN: 1344-6606

  62. pH-response of chitosan, kappa-carrageenan, carboxymethyl cellulose sodium salt complex hydrogels Peer-reviewed

    T Mitsumata, Y Suemitsu, K Fujii, T Fujii, T Taniguchi, K Koyama

    POLYMER 44 (23) 7103-7111 2003/11

    DOI: 10.1016/j.polymer.2003.09.001  

    ISSN: 0032-3861

  63. Enzymatic oxidative polymerization of 4-chloroguaiacol by laccase Peer-reviewed

    T Tanaka, M Yamamoto, M Takahashi, T Fujii, M Taniguchi

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 36 (9) 1101-1106 2003/09

    DOI: 10.1252/jcej.36.1101  

    ISSN: 0021-9592

  64. 浸透圧脱水による農産物の凍結障害抑制効果 Peer-reviewed

    大西茂彦, 藤井智幸, 宮脇長人

    低温生物工学会誌 49 (2) 165-169 2003

    DOI: 10.20585/cryobolcryotechnol.49.2_165  

  65. Characterization of a lysK gene as an argE homolog in Thermus thermophilus HB27 Peer-reviewed

    J Miyazaki, N Kobashi, T Fujii, M Nishiyama, H Yamane

    FEBS LETTERS 512 (1-3) 269-274 2002/02

    DOI: 10.1016/S0014-5793(02)02290-1  

    ISSN: 0014-5793

  66. High-pressure inactivation of Bacillus cereus spores in the presence of argon Peer-reviewed

    K Fujii, A Ohtani, J Watanabe, H Ohgoshi, T Fujii, K Honma

    INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY 72 (3) 239-242 2002/02

    DOI: 10.1016/S0168-1605(01)00700-0  

    ISSN: 0168-1605

  67. Electrical and rheological analysis of freezing injury of agricultural products Peer-reviewed

    S Ohnishi, T Fujii, O Miyawaki

    INTERNATIONAL JOURNAL OF FOOD PROPERTIES 5 (2) 317-332 2002

    DOI: 10.1081/JFP-120005788  

    ISSN: 1094-2912

  68. Treatment of model soils contaminated with phenolic endocrine-disrupting chemicals with laccase from Trametes sp in a rotating reactor Peer-reviewed

    T Tanaka, T Tonosaki, M Nose, N Tomidokoro, N Kadomura, T Fujii, M Taniguchi

    JOURNAL OF BIOSCIENCE AND BIOENGINEERING 92 (4) 312-316 2001/10

    ISSN: 1389-1723

  69. The sol-gel preparation and characterization of nanoporous silica membrane with controlled pore size Peer-reviewed

    T Fujii, T Yano, K Nakamura, O Miyawaki

    JOURNAL OF MEMBRANE SCIENCE 187 (1-2) 171-180 2001/06

    DOI: 10.1016/S0376-7388(01)00338-6  

    ISSN: 0376-7388

  70. Effects of water activity and aqueous solvent ordering on thermal stability of lysozyme, alpha-chymotrypsinogen A, and alcohol dehydrogenase Peer-reviewed

    S Matsue, T Fujii, O Miyawaki

    INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 28 (5) 343-349 2001/06

    DOI: 10.1016/S0141-8130(01)00127-1  

    ISSN: 0141-8130

  71. 物理的・化学的処理に伴う植物細胞の組織内変化 Peer-reviewed

    大西茂彦, 藤井智幸, 宮脇長人

    低温生物工学会誌 47 (2) 131-133 2001

    DOI: 10.20585/cryobolcryotechnol.47.2_131  

  72. Mechanical properties of two-phase disperse agar/gelatin mixed gels Peer-reviewed

    K Fujii, R Kajita, M Kurosawa, T Fujii

    JOURNAL OF TEXTURE STUDIES 31 (3) 273-286 2000/09

    DOI: 10.1111/j.1745-4603.2000.tb00290.x  

    ISSN: 0022-4901

  73. Scaling analysis of the concentration dependence on elasticity of agarose gel Peer-reviewed

    T Fujii, T Yano, H Kumagai, O Miyawaki

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 64 (8) 1618-1622 2000/08

    DOI: 10.1271/bbb.64.1618  

    ISSN: 0916-8451

    eISSN: 1347-6947

  74. Scaling analysis on elasticity of agarose gel near the sol-gel transition temperature Peer-reviewed

    T Fujii, T Yano, H Kumagai, O Miyawaki

    FOOD HYDROCOLLOIDS 14 (4) 359-363 2000/07

    DOI: 10.1016/S0268-005X(00)00012-6  

    ISSN: 0268-005X

  75. Dynamic Light Scattering Analysis on Critical Behavior of Cluster Size Distribution of Polyacrylamide and Agarose Solutions near the Sol-Gel Transition Point Peer-reviewed

    Tomoyuki Fujii, Toshimasa Yano, Hitoshi Kumagai, Osato Miyawaki

    Food Science and Technology Research 6 (2) 94-98 2000

    Publisher: S. Karger AG

    DOI: 10.3136/fstr.6.94  

    ISSN: 1344-6606

  76. 界面前進凍結濃縮法による液状食品の濃縮 Peer-reviewed

    劉 凌, 藤井智幸, 宮脇長人

    低温生物工学会誌 45 (2) 31-34 1999

  77. Second Transmembrane Segment of FtsH Plays a Role in Its Proteolytic Activity and Homo-Oligomerization Peer-reviewed

    S. Makino, T. Makino, K. Abe, J. Hashimoto, T. Tatsuta, M. Kitagawa, H. Mori, T. Ogura, T. Fujii, S. Fushinobu, T. Wakagi, H. Matsuzawa

    FEBS Letters 460 554-558 1999

  78. Prevention of Initial Supercooling in Progressive Freeze-Concentration Peer-reviewed

    L. Liu, T. Fujii, K. Hayakawa, O. Miyawaki

    Bioscience, Biotechnology and Biochemistry 62 (12) 2467-2469 1998/12

    Publisher: Japan Society for Bioscience, Biotechnology, and Agrochemistry

    DOI: 10.1271/bbb.62.2467  

    ISSN: 0916-8451

    More details Close

    A physical method is proposed that uses a cooling plate with many small holes to prevent initial supercooling in progressive freeze-concentration, and thus avoid serious contamination of the ice produced. The higher chance for ice nucleation of the water molecules in the holes due to the temperature gradient in the cooling plate resulted in the initial supercooling being completely prevented. Accordingly, the purity of the ice initially formed was substantially improved when compared with that by the standard vessel without holes in the cooling plate.

  79. ナノスペースでの吸着特性と膜透過性

    藤井智幸

    化学装置 40 (3) 59-63 1998/03

  80. ゲル構造へのアプローチ Invited

    藤井智幸

    日本食品科学工学会誌 44 (10) 738-744 1997/10

  81. Separation of Caffeine from Supercritical Carbon Dioxide with a Zeolite Membrane Peer-reviewed

    Y. Tokunaga, T. Fujii, K. Nakamura

    Bioscience, Biotechnology and Biochemistry 61 (6) 1024-1026 1997/06

    Publisher: Japan Society for Bioscience, Biotechnology, and Agrochemistry

    DOI: 10.1271/bbb.61.1024  

    ISSN: 0916-8451

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    Caffeine was separated from supercritical carbon dioxide with a zeolite membrane that had been tested for pervaporation. The pore size of the NaY zeolite membrane was evaluated to be of subnanometer scale from the result of a Dubinin-Astakhov analysis. The rejection of caffeine was 0.98 by the zeolite membrane which would make it applicable for SCCO_2 membrane separation.

  82. Effect of Solute Adsorption Properties on Its Separation from Supercritical Carbon Dioxide with a Thin Porous Silica Membrane Peer-reviewed

    T. Fujii, T. Tokunaga, K. Nakamura

    Bioscience, Biotechnology and Biochemistry 60 (12) 1945-1949 1996

    Publisher: Japan Society for Bioscience, Biotechnology, and Agrochemistry

    DOI: 10.1271/bbb.60.1945  

    ISSN: 0916-8451

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    A thin porous silica membrane (average pore size of 3.3 mm) was prepared by the sol-gel method and used to separate the solute from supercritical carbon dioxide. The characteristics of solute permeation were investigated in respect of the adsorption properties of the solute, the desorption rate of the solute from the membrane being measured and the potential energy of solute near the silica surface being calculated by the molecular modeling technique. It was found that caffeine was strongly adsorbed to the surface and then slowly desorbed to form an adsorption layer, making the pores narrower and causing a molecular-sieving effect. Therefore, the rejection value was positive. On the other hand, the rejection value of n-octanoic acid, which was well adsorbed and rapidly desorbed, was negative. It is presumed that the molecules filled the pores due to their potential energy and were then forced to flow through the pores by the transmembrane pressure.

  83. Mechanical properties of foods near the sol-gel transition point Peer-reviewed

    H Kumagai, T Inukai, T Fujii, T Yano

    DEVELOPMENTS IN FOOD ENGINEERING, PTS 1 AND 2 105-107 1994

  84. Critical behavior of agarose near the sol-gel transition point Peer-reviewed

    T Fujii, H Kumagai, T Yano

    DEVELOPMENTS IN FOOD ENGINEERING, PTS 1 AND 2 114-116 1994

  85. X-Ray Study of Calcium Phosphates Formed in the Presence of Citrate Peer-reviewed

    K. Yamamoto, H. Kumagai, T. Fujii, T. Yano

    Bioscience, Biotechnology and Biochemistry 57 (10) 1788-1789 1993/10

    Publisher: Japan Society for Bioscience, Biotechnology, and Agrochemistry

    DOI: 10.1271/bbb.57.1788  

    ISSN: 0916-8451

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    The time-course for crystalline forms of calcium phosphates was investigated by the X-ray method in the absence and presence of citrate, a typical inhibitor of calcium phosphate formation. Dicalcium phosphate dihydrate (DCPD) was observed as a precursor without citrate, while DCPD was not observed in the presence of citrate, suggesting that citrate lowered the supersaturation degree of DCPD.

  86. MECHANICAL-PROPERTIES OF FOODS NEAR SOL-GEL TRANSITION POINT .2. CONCENTRATION-DEPENDENCE OF MECHANICAL-PROPERTIES OF GELATIN NEAR THE SOL-GEL TRANSITION POINT Peer-reviewed

    H KUMAGAI, T FUJII, T INUKAI, T YANO

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 57 (4) 532-535 1993/04

    ISSN: 0916-8451

    eISSN: 1347-6947

  87. MECHANICAL-PROPERTIES OF FOODS NEAR SOL-GEL TRANSITION POINT .1. CONCENTRATION-DEPENDENCE OF MECHANICAL-PROPERTIES OF POLYACRYLAMIDE NEAR THE SOL-GEL TRANSITION POINT Peer-reviewed

    T YANO, H KUMAGAI, T FUJII, T INUKAI

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 57 (4) 528-531 1993/04

    ISSN: 0916-8451

    eISSN: 1347-6947

  88. Preparation of a Polyelectrolyte Complex Gel from Chitosan and Carrageenan and Its pH-Sensitive Swelling Peer-reviewed

    T. Sakiyama, C.-H. Chu, T. Fujii, T. Yano

    Journal of Applied Polymer Science 50 2021-2025 1993

  89. Modeling of Hollow-Fiber Capillary Reactor for the Production of L-Alanine with Coenzyme Regeneration Peer-reviewed

    T. Fujii, O. Miyawaki, T. Yano

    Biotechnology and Bioengineering 38 (10) 1165-1172 1991/10

  90. 有機酸から中性アミノ酸を生産するバイオリアクターにおけるイオン交換膜による生成物分離 Peer-reviewed

    宮脇長人, 藤井智幸, 矢野俊正

    膜(MEMBRANE) 14 (3) 217-219 1988/06

Show all ︎Show first 5

Misc. 49

  1. もやしが安く安定的に供給できる理由 Invited

    藤井智幸

    農業と経済 2021年3月臨時増刊号 87 (2) 46-52 2021/02

  2. すり身ゲルの凍結・解凍による状態変化

    藤井智幸, 日高將文, 門田佳奈, 石川大太郎

    日本食品科学工学会大会講演集 68th 2021

    ISSN: 2759-3843

  3. Whipping Behavior of Rice Flour Dough Peer-reviewed

    Chiaki Ichikawa, Takahiro Fukunaga, Daitaro Ishikawa, Tomoyuki Fujii

    MATEC Web of Conferences 333 02008-02008 2021/01

    Publisher: EDP Sciences

    DOI: 10.1051/matecconf/202133302008  

    eISSN: 2261-236X

    More details Close

    In this study, the bubbles in rice flour dough were investigated under a constant temperature. The bubble size distribution is important for the control of food texture. If bubble sizes depend mainly on the inertial force, viscous force, and surface tension, then the normalized mean bubble diameter should be a function of the Reynolds number and Weber number. We obtained experimental data using a hand mixer, and compared the properties of doughs prepared using six rice flours; each flour was prepared through a different milling process. We also added the size effect of the rice flour particles as the Bond number. Furthermore, we performed a dynamic wettability test to estimate the wettability of the rice flour surface. The results of this test were described well by the Washburn equation, and <italic>dc</italic>cos<italic>θ</italic> was calculated as a wettability parameter (where, <italic>dc</italic>: effective diameter of a capillary in a powder bed, cos<italic>θ</italic>: the contact angle). The mean bubble diameter (<italic>dbm</italic>) generated by whipping was expected to be affected by the thickness (<italic>d</italic>) of the rod of the mixer, its movement speed, physical properties of the material, and gravitational acceleration. Therefore, dimensionless mean diameter (<italic>dbm/d</italic>) was expressed by a dimensionless equation. The empirical equation obtained was generally applicable to the variety of materials selected for this study.

  4. ゲル状食品の物性とおいしさ

    藤井智幸

    食品と容器 61 (4) 266-274 2020/04

  5. Establishment of an innovative evaluation technique for food and development of cellular foods prepared with rice flour

    藤井智幸, 庄子真樹, 石川大太郎, 石川大太郎

    飯島藤十郎記念食品科学振興財団年報 35 2020

    ISSN: 2188-0662

  6. ゲル状食品のレオロジーとテクスチャー評価

    藤井 智幸

    食品と容器 60 (2) 130-137 2019/02

  7. 東北大学における食の取り組み

    藤井 智幸

    季刊栄養教諭 2017/09

  8. Coagulation and rheological behaviors of soy milk colloidal dispersions

    Tomoyuki Fujii

    BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 81 (4) 680-686 2017/04

    DOI: 10.1080/09168451.2017.1282810  

    ISSN: 0916-8451

    eISSN: 1347-6947

  9. 糖質未利用資源の高圧熱水部分分解物の生成挙動と利活用

    藤井 智幸

    化学工学 80 (4) 190-193 2017/04

  10. 豆乳コロイド分散系の凝集挙動

    藤井 智幸

    日本食品科学工学会誌 64 (4) 226-232 2017/04

  11. 大学を中核とした技術開発プラットフォーム構築によるイノベーション創出 ~地域活性化への取り組み事例~

    渡邉 賢, 猪股 宏, 赤木 弘喜, 鈴木 康夫, 藤井 智幸

    PMAJ Journal 59 24-35 2017/03

  12. Ap-6 米粉の粉体特性(糖質と食品,一般講演,日本応用糖質科学会平成26年度大会(第63回))

    藤井 智幸, 鈴木 康平, 齊藤 美香, 石川 大太郎, 関山 恭代, 小野 裕嗣, 奥西 智哉

    応用糖質科学:日本応用糖質科学会誌 4 (3) B35 2014

    Publisher: 一般社団法人 日本応用糖質科学会

    DOI: 10.5458/bag.4.3_b35-4  

    ISSN: 2185-6427

    eISSN: 2424-0990

  13. 高分子・コロイドにおける動的光散乱解析とその応用

    藤井智幸, 井戸川詩織

    LSアドバンス 13 2-10 2014

  14. 米粉の吸湿及び吸水挙動

    藤井智幸, 上野茂昭, 深谷修平, 斎藤美香, 庄子真樹, 池田正明

    Thermophys Prop 34th 177-179 2013/11/20

    ISSN: 0911-1743

  15. アルカリ処理脱アミド化による米糠タンパク質の溶解性と構成アミノ酸の変化

    高井龍之介, 関けい韜, 永沼孝子, 小川智久, 村本光二, 毛利哲, 藤井智幸, CHI Hyun, CHO Seong‐Jun

    日本食品科学工学会大会講演集 59th 117 2012/08/29

  16. 米糠タンパク質の構造と機能性に対する加熱処理の影響

    GUAN Jingtao, 虎谷康平, 高井龍之介, 永沼孝子, 小川智久, 村本光二, 毛利哲, 藤井智幸, CHI Hyun, CHO Seong‐Jun

    日本農芸化学会大会講演要旨集(Web) 2012 2J16A14 (WEB ONLY) 2012/03/05

    ISSN: 2186-7976

  17. Saccharomyces cerevisiae圧力耐性・感受性UV変異株の圧力死滅挙動の解析

    南波優, 野村一樹, 南須原悠輔, 林真名歩, 木戸みゆ紀, 林真由美, 井口晃徳, 重松亨, 平山匡男, 平山匡男, 上野茂昭, 藤井智幸, 藤井智幸

    日本食品工学会年次大会講演要旨集 13th 2012

  18. Saccharomyces cerevisiae圧力感受性変異株の遺伝子発現プロファイルの解析

    野村一樹, 齋木朋恵, 林真名歩, 林真由美, 木戸みゆ紀, 上野茂昭, 井口晃徳, 重松亨, 岩橋均, 平山匡男, 平山匡男, 藤井智幸, 藤井智幸

    日本農芸化学会大会講演要旨集(Web) 2012 2012

    ISSN: 2186-7976

  19. 圧力耐性が変化したSaccharomyces cerevisiae UV変異株の表現形質の解析

    南波優, 野村一樹, 南須原悠輔, 林真名歩, 木戸みゆ紀, 林真由美, 井口晃徳, 重松亨, 平山匡男, 平山匡男, 上野茂昭, 藤井智幸, 藤井智幸

    日本農芸化学会大会講演要旨集(Web) 2012 2012

    ISSN: 2186-7976

  20. Saccharomyces cerevisiaeの圧力死滅における増殖遅延を引き起こす細胞損傷の重要性

    南波優, 野村一樹, 南須原悠輔, 林真名歩, 木戸みゆ紀, 林真由美, 井口晃徳, 重松亨, 平山匡男, 上野茂昭, 藤井智幸, 藤井智幸

    日本農芸化学会関東支部講演要旨集 2012 (Oct) 2012

  21. 米粉の内部構造と吸水特性

    上野茂昭, 福田智世, 深谷修平, 庄子真樹, 羽生幸弘, 毛利哲, 畑中咲子, 富樫千之, 池田正明, 藤井智幸

    Thermophys Prop 32nd 201-203 2011/11/21

    ISSN: 0911-1743

  22. 異なる粉砕方法で調製された米微粒子の内部構造と粉体特性

    深谷修平, 庄子真樹, 羽生幸弘, 毛利哲, 畑中咲子, 富樫千之, 池田正明, 藤井智幸

    日本農芸化学会大会講演要旨集 2011 2011

  23. 異なる粉砕方法で調製された米微粒子の内部構造と粉体特性

    深谷修平, 庄子真樹, 羽生幸弘, 毛利哲, 畑中咲子, 富樫千之, 池田正明, 藤井智幸

    日本食品科学工学会大会講演集 58th 2011

  24. Microplateを用いた大腸菌および酵母の高圧死滅挙動解析システムの開発

    長谷川敏美, 林真名歩, 野村一樹, 林真由美, 木戸みゆ紀, 大森恒男, 福田雅夫, 上野茂昭, 重松亨, 平山匡男, 藤井智幸, 藤井智幸

    日本食品工学会年次大会講演要旨集 12th 2011

  25. Saccharomyces cerevisiae圧力感受性変異株の温度感受性およびtrehalose含量の解析

    野村一樹, 林真名歩, 林真由美, 木戸みゆ紀, 上野茂昭, 岩橋均, 重松亨, 平山匡男, 藤井智幸, 藤井智幸

    日本農芸化学会大会講演要旨集 2011 2011

  26. 1Hp11 Trehalose content and dominance-recessiveness of mutated gene in a Saccharomyces cerevisiae barosensitive mutant

    Nomura Kazuki, Hayashi Manabu, Hayashi Mayumi, Kido Miyuki, Ueno Shigeaki, Iwahashi Hitoshi, Iguchi Akinori, Shigematsu Toru, Hirayama Masao, Fujii Tomoyuki

    日本生物工学会大会講演要旨集 63 55-55 2011

    Publisher: 公益社団法人日本生物工学会

  27. 1Cp22 Separation and cultivation of anaerobic acetate-utilizing methanogenic microorganisms using microplate

    Shigematsu Toru, Nakajima Misako, Hayashi Mayumi, Ueno Shigeaki, Fujii Tomoyuki, Masaki Haruhiko, Iguchi Akinori, Hirayama Masao

    日本生物工学会大会講演要旨集 63 34-34 2011

    Publisher: 公益社団法人日本生物工学会

  28. 粉砕方法の異なる米粉の特徴

    藤井智幸

    ふーま 111 16-19 2011

    Publisher: 日本食品機械工業会

  29. 紫外線照射により取得したSaccharomyces cerevisiae圧力感受性変異株の表現形質の解析

    野村一樹, 五十嵐健太, 南須原悠輔, 永井弦, 林真由美, 上野茂昭, 重松亨, 平山匡男, 藤井智幸, 藤井智幸

    日本農芸化学会大会講演要旨集 2010 2010

  30. HIGH-PRESSURE INDUCED TRANSFORMATION OF CELLULAR BIOLOGICAL MATERIALS

    UENO Shigeaki, KAROU Mineko, WATANABE Takae, NAKAJIMA Kanako, HAYASHI Mayumi, SHIGEMATSU Toru, FUJII Tomoyuki

    Thermophysical properties 30 307-309 2009/10/27

    ISSN: 0911-1743

  31. 2Ma01 Characterization of pressure-sensitive mutants of Saccharomyces cerevisiae

    SHIGEMATSU Toru, NASUHARA Yusuke, NAGAI Gen, NOMURA Kazuki, IKARASHI Kenta, HIRAYAMA Masao, HAYASHI Mayumi, UENO Shigeaki, FUJII Tomoyuki

    日本生物工学会大会講演要旨集 21 186-186 2009

    Publisher: 公益社団法人日本生物工学会

  32. SB-3 高圧死滅挙動からみた大腸菌の塩ストレス応答反応(微生物の野生の姿に迫る-環境適応とそのメカニズム-, シンポジウム)

    重松 亨, 林 真由美, 上野 茂昭, 藤井 智幸

    日本微生物生態学会講演要旨集 (25) 46-46 2009

    Publisher: 日本微生物生態学会

  33. 2Ip10 Influence of salts on high-pressure inactivation of Escherichia coli

    SHIGEMATSU Toru, HASEGAWA Toshimi, HAYASHI Masako, UENO Shigeaki, FUJII Tomoyuki

    日本生物工学会大会講演要旨集 20 215-215 2008

    Publisher: 公益社団法人日本生物工学会

  34. 高圧食品加工の新展開

    藤井智幸

    食品加工技術 28 (2) 58-62 2008

  35. 食品工場・施設・設備における衛生管理と洗浄・殺菌

    藤井智幸

    月刊食料と安全 6 (6) 52-60 2008

  36. 遺伝子組換えイネ栽培のリスク分析と新潟県条例・栽培実施基準策定への応用

    藤井智幸

    月刊食料と安全 6 (4) 54-64 2008

    Publisher: 全国瑞穂食糧検査協会

    ISSN: 1348-4958

  37. 高圧熱水による食品循環資源素材の部分分解反応

    上野 茂昭, 安斎 真由美, 西山 祐介, 重松 亨, 藤井 智幸

    化学工学会 研究発表講演要旨集 2007 (0) 777-777 2007

    Publisher: 公益社団法人 化学工学会

    DOI: 10.11491/scej.2007f.0.777.0  

  38. 米の高圧処理による改質に関する工学的基礎研究

    藤井智幸

    月刊食料と安全 5 (4) 48-55 2007

    Publisher: 全国瑞穂食糧検査協会

    ISSN: 1348-4958

  39. 3J09-4 Growth ability on liquid and agar media of Delftia sp. strains isolated from seawater

    SHIGEMATSU Toru, UENO Shigeaki, KIKUCHI Isamu, TSUCHIDA Yasuharu, HAYASHI Mayumi, FUJII Tomoyuki

    日本生物工学会大会講演要旨集 18 185-185 2006

    Publisher: 公益社団法人日本生物工学会

  40. 食品製造過程に必要な衛生管理技術

    藤井智幸

    化学装置 48 (6) 20-24 2006

  41. 超高圧による微生物制御 Peer-reviewed

    藤井 智幸, 相沢 由紀子, 林 真由美, 上野 茂昭

    化学工学会 研究発表講演要旨集 2005 (0) 327-327 2005

    Publisher: 公益社団法人 化学工学会

    DOI: 10.11491/scej.2005f.0.327.0  

  42. Enzymatic oxidative polymerization of 4-chloroguaiacol by laccase (vol 36, pg 1101, 2003)

    T Tanaka, M Yamamoto, M Takahashi, T Fujii, M Taniguchi

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 37 (3) 2004/03

    ISSN: 0021-9592

  43. 浸透圧脱水による冷凍農産物の軟化抑制効果

    大西茂彦, 藤井智幸, 宮脇長人

    日本食品工学会年次大会講演要旨集 4th 2003

  44. 農産物の浸透圧脱水による凍結阻害防止効果

    大西茂彦, 藤井智幸, 宮脇長人

    日本農芸化学会大会講演要旨集 2003 2003

  45. 植物性食品の保存・加工に伴う細胞構造変化とそのインピーダンス解析

    大西茂彦, 藤井智幸, 宮脇長人

    日本農芸化学会大会講演要旨集 2002 2002

  46. 冷凍,加熱,化学物質処理に伴う植物細胞組織の損傷と力学物性変化

    大西茂彦, 藤井智幸, 宮脇長人

    香川県産業技術センター研究報告 (2) 2002

    ISSN: 1346-5236

  47. 冷凍・加熱処理に伴う農産物の細胞構造変化とそのインピーダンス解析

    大西茂彦, 藤井智幸, 宮脇長人

    日本食品工学会年次大会講演要旨集 3rd 2002

  48. 植物細胞の冷凍処理に伴う凍結障害と軟化現象

    大西茂彦, 藤井智幸, 宮脇長人

    日本食品工学会年次大会講演要旨集 2nd 2001

  49. 物理的・化学的処理による植物組織の損傷と組織軟化

    大西茂彦, 藤井智幸, 宮脇長人

    日本農芸化学会誌 75 2001

    ISSN: 0002-1407

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Books and Other Publications 6

  1. 食品製造に役立つ食品工学事典

    藤井智幸

    恒星社厚生閣 2020/12

  2. 進化する食品高圧加工技術

    藤井智幸他

    NTS 2013/06/10

  3. 食品工学

    藤井智幸

    朝倉書店 2012

  4. 進化するテクスチャー研究

    藤井智幸

    NTS 2011

  5. 食品への超臨界流体応用ハンドブック

    長浜邦雄, 木功他

    サイエンスフォーラム 2002/07/30

    ISBN: 4916164571

  6. 食品物理化学

    松野隆一, 宮脇長人, 高橋克忠, 熊谷仁, 亀岡孝治, 白井義人, 佐藤清隆, 中村厚三, 西成勝好, 月向邦彦, 松本幸雄, 藤井智幸, 中西一弘, 鈴木寛一, 崎山高明, 安達修二, 山本修一, 鈴木徹, 久保田清, 野口明徳

    文永堂出版 1996/03/20

    ISBN: 4830040807

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Presentations 33

  1. シンポジウム「日本食のグローバル展開に向けて」「ゲル状食品のテクスチャー評価」 Invited

    FUJII Tomoyuki

    日本食品科学工学会第65回大会 2018/08/22

  2. 特別シンポジウム「食料に関わる高付加価値化および循環資源化に対する亜臨界・超臨界・高圧流体の可能性」、「高圧熱水処理を核とした資源循環系」 Invited

    FUJII Tomoyuki

    化学工学会第49回秋季大会 2017/09/21

  3. 「食の科学研究最前線-機能性食品と日本食-」、「日本食のおいしさと食品加工技術」 Invited

    FUJII Tomoyuki

    日本学術会議農学委員会・食料科学委員会、公開シンポジウム 2017/08/10

  4. In situ Bioconversion of Glutamic Acid to gamma-Aminobutyric Acid in Soybean by High Hydrostatic Pressure with Precursor Feeding International-presentation

    Ueno, S, Katayama, T, Nakajima, K, Hayashi, M, Shigematsu, T, Fujii, T

    The 5th international Niigata symposium on diet and health 2010/10/30

  5. High pressure-independent in situ bioconversion of polyphenolic compounds in Petroselinum crispum (parsley) and its use for enhancement of antioxidant activity

    Shigematsu, T, Nakajima, K, Nakajima, Y, Hayashi, M, Ueno, S, Hirayama, M, Fujii, T

    The 5th international Niigata symposium on diet and health 2010/10/30

  6. 製粉方法の異なる米粉の粉体特性の粒子径依存性

    藤井智幸, 庄司真樹, 羽生幸弘, 毛利哲, 畑中咲子, 池田正明, 富樫千之

    日本食品科学工学会東北支部大会 2010/10/16

  7. Thermosensitivity of a barosensitive Saccharomyces cerevisiae mutant obtained by UV mutagenesis International-presentation

    Shigematsu, T, Nomura, K, Narahara, Y, Nagai, G, Nomura, K, Ikarashi, K, Hirayama, M, Hayashi, M, Ueno, S, Fujii, T

    6th International conference on High Pressure Bioscience and Biotechnology 2010/08/31

  8. ダイズ中のGABA生成挙動に及ぼす高圧の影響

    上野茂昭, 渡邊貴恵, 中島加奈子, 林真由美, 重松亨, 藤井智幸

    日本食品工学会第11回大会 2010/08/04

  9. 玄米のプロテオリシス促進に及ぼす高圧処理の効果

    重松亨, 林真由美, 高橋英子, 上野茂昭, 平山匡男, 藤井智幸

    日本食品工学会第11回大会 2010/08/04

  10. 大腸菌の高圧死滅に及ぼす共存塩の影響

    長谷川敏美, 沼澤貴典, 東潤, 林真由美, 上野茂昭, 重松亨, 平山匡男, 藤井智幸

    日本食品工学会第11回大会 2010/08/04

  11. 高圧処理により誘引されるパセリの抗酸化活性の増加とポリフェノール化合物の変換反応

    日本農芸化学会2010年年次大会 2010/03/29

  12. 高圧処理による大豆の機能性の制御

    日本農芸化学会2010年年次大会 2010/03/29

  13. プロテオームの比較に基づく玄米タンパク質に及ぼす高圧効果の解析

    日本農芸化学会2010年年次大会 2010/03/29

  14. 紫外線照射により取得したSaccharomyces cerevisiae圧力感受性変異株の表現形質の解析

    日本農芸化学会2010年年次大会 2010/03/29

  15. 高圧処理カブ中に生成する新規成分の構造解析

    第58回有機合成化学協会関東支部シンポジウム 2009/11/29

  16. A culture-dependent bacterial community structure analysis based on liquid cultivation and its application to a marine environment International-presentation

    Asia Pacific Biochemical Engineering Conference 2009/11/25

  17. 高圧死滅挙動からみた大腸菌の塩ストレス応答反応

    第25回微生物生態学会 2009/11/23

  18. 食の高付加価値化に資する基盤技術の開発

    食の国際見本市in新潟 2009/11/12

  19. 高圧処理による低水分細胞性生物素材の改質

    日本熱物性シンポジウム 2009/10/26

  20. Saccharomyces cerevisiaeの圧力感受性変異株の取得と表現形質の解析

    日本生物工学会2009年年次大会 2009/09/24

  21. 高圧処理を応用した食品素材の機能性富化

    日本食品工学会第10回年次大会 2009/08/02

  22. 超高圧処理を応用したカブBrassica rapaの代謝制御

    第16回生物関連高圧研究会 2009/07/31

  23. Effects of hydrostatic pressure on distribution dynamics of free amino acids in water soaked brown rice grains International-presentation

    Joint AIRAPT-22& HPCJ-50 2009/07/29

  24. 高圧処理により生成するカブ中の新規成分の構造解析

    日本化学会第89回春季年会 2009/03/29

  25. 高圧処理による食品素材の抗酸化活性の富化

    日本農芸化学会2009年年次大会 2009/03/28

  26. 穏和な塩ストレス下の大腸菌の圧力感受性に関する研究

    日本農芸化学会2009年年次大会 2009/03/28

  27. 抗酸化活性を有するC18トリヒドロキシ不飽和脂肪酸の高圧誘導生合成

    日本農芸化学会2009年年次大会 2009/03/28

  28. Formation of Green-Blue Compounds in Brassica rapa Root by High-Pressure Processing and Subsequent Storage International-presentation

    4 th International Niigata Symposium on Diet and Health Integrative functions of diet in anti-aging and cancer Prevention 2008/11/29

  29. 食の高付加価値化に資する基盤技術の開発

    新潟国際ビジネスメッセ2008 2008/11/06

  30. 高圧処理による生物素材中の代謝反応の制御と機能性成分の富化

    農林水産省アグリビジネス創出フェア2008 2008/10/29

  31. 大腸菌の高圧死滅挙動に及ぼす共存塩の影響

    日本生物工学会2008年年次大会 2008/08/28

  32. 食品素材の抗酸化活性に及ぼす高圧処理の影響

    化学工学会新潟大会 2008/08/21

  33. 高圧処理により誘引される玄米・大豆の遊離アミノ酸組成の変化に及ぼすアミノ酸代謝系への影響

    日本食品工学会2008年年次大会 2008/08/06

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Research Projects 18

  1. 新規植物性たんぱく質資源の探索とその社会実装に資する加工特性の解明

    藤井 恵子, 小崎 智恵, 海老澤 元宏, 林 典子, 藤井 智幸

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 日本女子大学

    2023/04/01 - 2026/03/31

  2. Non-invasive monitoring of intra-brain drug concentration using near-infrared spectroscopy (chemical NIRS)

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tohoku University

    2021/07/09 - 2024/03/31

  3. アレルギー対応非常食の社会実装のための分子論的基盤とそれを応用した食品の開発

    藤井 恵子, 林 典子, 海老澤 元宏, 藤井 智幸

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 日本女子大学

    2020/04/01 - 2023/03/31

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    【目的】本研究では、主要アレルギー原因物質(鶏卵、牛乳、小麦)を含まない食物アレルギー患者の災害時の非常食にもなり得る、機能性に優れた健康志向型食品を開発し、実用化を目指すことを目的とした。昨年度、試料としてキヌア、アマランサスの各雑穀を粉末化させ、豆乳と複合化させて含泡食品を創製し、それを乾燥させラスクの特性を検討した結果、キヌア主体のラスクは硬く、サクサク感に乏しいことが明らかとなった。そこで、今年度はキヌア粉に大豆粉を添加して、物性及び嗜好性に与える影響を検討した。 【方法】キヌア粉、大豆粉、グラニュー糖、ドライイーストを原料とし、キヌア粉と大豆粉を100:0、75:25、50:50、25:75、0:100で混合した。35℃の発酵機で30分間発酵後200℃のオーブンで30分間焼成して含泡食品を調製した。25℃に放冷後、生地の粘度、含泡食品の比容積、破断特性、テクスチャー特性、静的粘弾性、水分含量、きめの評価を行い、またシェッフェの一対比較法の官能評価を実施した。 【結果】含泡食品の最適加水量は、大豆粉の割合が高くなるほど多くなった。キヌア粉に大豆粉を添加することで、含泡食品の気泡平均面積は大きく気泡数は少なくなり、大豆粉を50%混合したとき最もきめが粗くなった。破断特性ではキヌア粉に大豆粉を添加することで圧縮時応力、みかけの弾性率は高値となったが、大豆粉100%の含泡食品はキヌア粉100%の含泡食品よりも低値となった。テクスチャー特性では、大豆粉100%の含泡食品はキヌア粉100%より凝集性が小さい一方、付着性が大きく、混合系の含泡食品はさらに凝集性が低下し付着性が増大した。官能評価の結果より、キヌア粉100%の含泡食品は独特な苦味があったが、大豆粉を25%混合することで苦味は抑えられた。大豆粉を25%混合した含泡食品は香り、風味が嗜好的に好ましいと評価された。

  4. Development of allergen-free food for the purpose of improvement of the quality of life under disasters

    FUJII Keiko

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Japan Women's University

    2017/04/01 - 2021/03/31

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    The objective of this study was to elucidate the mechanical properties of puffed millets and establish a measurement method. Puffed millets were compared with brown rice, adlay, barley, and amaranth. To study the rupture properties, the millets were subjected at four different compression speeds. It was shown that a single compression, a plunger with a diameter of 40 mm, and a compression speed of 1.0 mm/s were suitable conditions for effectively measuring the mechanical properties of puffed millets. The water sorption and rheological properties of puffed millets, such as brown rice, barley, adlay, and amaranth were investigated along with their glass transition properties. The puffed millets were stored in the desiccators until the water content was constant in equilibrium. The rupture properties of puffed millets showed ductile fracture and >8% moisture content.

  5. High pressure transformation of agriproduct

    Fujii Tomoyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2014/04/01 - 2017/03/31

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    The induction of novel secondary metabolic reactions in agricultural products by high pressure treatment is a high value added method for agricultural products that does not involve genetically modified technology, and this is because the internal tissues of agricultural products are destroyed and the association between the enzyme and the substrate is easy as a result. At this time, an enzyme reaction is apparently accelerated. It was confirmed that when the sprout sample was subjected to high pressure treatment and preserved after decompression, free amino acids increased. In addition, it was found that blue pigment is produced when the green bean sprout subjected to high pressure treatment is stored at 4 ° C. Thus, it was shown that the phenomenon that a potential secondary metabolic reaction becomes active by applying high pressure treatment at an appropriate physiological stage of a plant.

  6. Design of a nutritious allergen-free food and evaluation of its potential for acceptance

    FUJII KEIKO

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Japan Women's University

    2014/04/01 - 2017/03/31

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    We investigated the diets of food allergic children (FA children) in this study. Because choices of processed foods are significantly limited, their QOL (quality of life) is low, especially in terms of dining out and traveling. Thus we tried to produce a rice muffin without egg, milk and wheat as a meal for FA children. The texture of the rice muffin was improved by adding trehalose. Freezing was effective for preservation of the muffin. The physical and nutritional qualities of the rice muffin were improved by addition of carrot powder and purple sweet potato powder. These results indicated that a rice muffin with added vegetable powder could be an easily accepted meal choice for FA children.

  7. Induction of potential secondary metabolic reactions in biological and food materials with high pressure

    FUJII Tomoyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2011 - 2013

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    High pressure treatment, being able to activate secondary metabolic reactions in the plants, will lead to establishment of a technique for obtaining the food material of high quality. In this study, an agricultural material was selected and treated with high pressure. And the processed sample was stored for 4 days at 25 C. In onion samples, its radical scavenging activity increases have been shown, because quercetin inside increased during storage after the high-pressure treatment. The high-pressure treatment damaged the tissue structure of cellular biological material first, and mass transfer in the material was promoted. Therefore, the association of substrate and enzymes involved in quercetin generation was considered to be raised, and quercetin concentration was increased as a results.

  8. Basic aspects on the preparation of foam foods with millet for the purpose of prevention of lifestyle-related disease

    FUJII KEIKO, FUJII Tomoyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Japan Women's University

    2011 - 2013

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    Millet is high in calcium, iron and dietary fiber, and do not contain the three major allergens of wheat, egg, and milk. Therefore, millet flour is expected to be utilized as one of the ingredients for allergen-free foods. The baking properties of the bread made with amaranth, white sorghum and the foxtail millet flour, were investigated for the development of the allergen-free bread. The waxy/nonwaxy rate was not influence the specific volume of foxtail millet flour bread. However, the proportion of nonwaxy foxtail millet flour was larger, the hardness was higher. When inulin was added for the improvement of the quality of the foxtail millet flour bread, the specific volume of the bread increased. The initial elastic modulus of the bread was decreased by the addition of soymilk. In sensory evaluation, the foxtail millet flour bread with inulin and soymilk was tender, no bitter, good after taste, and synthetically favorable.

  9. コメの物理化学特性に関する研究 Competitive

    System: Cooperative Research

    2010/04 -

  10. 食品の高圧利用に関する研究 Competitive

    2010/04 -

  11. Establish of the processing of foam foods with various millets, and its application to the allergen-free foods

    FUJII Keiko, FUJII Tomoyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Japan Women's University

    2008 - 2010

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    The baking properties of the bread made with quinoa, white sorghum and finger millet flour, were investigated for the development of the allergen-free bread. The preparation methods for the bread made from each flour could be established after many tried and error. When inulin was added for the improvement of bread quality, the specific volume of the bread increased. As the moisture of the crumb of the bread didn't change by freezing, the refrigeration was thought to be effective for the purpose of maintaining the bread quality. In sensory evaluation, the white sorghum bread was brittle, quinoa and finger millet bread was crisp and moist.

  12. Control of nanostructure of biomaterials and utilization of biomass with supercritical fluid process

    FUJII Tomoyuki, TAKAGI Masamichi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Niigata University of Pharmacy and Applied Life Sciences

    2003 - 2004

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    Soluble starch was treated with hot-compressed-water at the temperature range of 160-210 C using a continuous-flow reactor. Apart of the sample was converted to reducing oligosaccharides by hydrolysis with the hot-compressed- water. At 160-190 C the hydrolysis reaction occurred with the hot-compressed-water depending on a retention time. Over 200 C the behavior of generation of reducing oligosaccharides was found to be observed a maximum with increase of the retention time. From the results both hydrolysis reaction and resolution of a saccharide body occurred in the reaction mixture. The activation volumes of hydrolysis reaction at the range of 160-170 C were about 350 mL/mol. On the other hand, those at the range of 180-210 C were the values of 30-85 mL/mol. It was thought that the mechanism of hydrolysis reaction was different depending on the reaction temperature.

  13. Investigation of phase separation in mixed gels which are suitable for foods for person of advanced age.

    FUJII Keiko, TAKAHASHI Masae, FUJII Tomoyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Japan Women's University

    2003 - 2004

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    The gel is well-known as one of suitable foods for elderly people who could not swallow easily. We prepared agar/gelatin and gelatin/carrageenan mixed gels with the same composition but with a different phase-separation structure, and investigated their mechanical and sensory properties. The mixture was first kept at temperature above the gelling temperature of gelatin and stirred for the selected period, before cooling it below the gelling temperature of gelatin. The phase-separation structure of both mixed gels was varied depending on the mixing temperature. A stress-strain curve of the gelatin gel obeyed the BST expression, and that of every mixed gel obeyed the sigmoid rupture expression. The rupture stress and the nonlinear parameter in the sigmoid rupture expression on mixed gels could be calculated from the stress-strain curve. According to the sensory test, when the nonlinear parameter of mixed gels increased, many panelists recognized that the mixed gels were more "elastic", "smooth", "not weak", and "sticky". From these results, the nonlinear parameter was suggested to be an index for the smoothness of the food texture.

  14. 食品内での高分子の構造変化と物性に関する研究

    藤井 智幸

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究(B)

    2001 - 2002

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    高分子ゲルでは、動的弾性率及び相関距離が、ゲル化点からの隔たりに対してスケーリング則: A∝ε^α(SU) A:物理量、ε:ゲル化点からの隔たり、α:臨界指数 で表されることが知られている。物性として弾性について、スケーリング則を構築した。 単位体積当たりの弾性の自由エネルギーFは、F∝ξ^<-d> kξ^2とスケールされる。ここで、Kは端点間高分子鎖における曲げバネ係数であり、 k∝ξ^<-D> M(ξ)^<-1>(SU) と仮定する。ここで、M(ξ)は端点間距離ξの高分子鎖の質量であり M(ξ)∝ξ^<1/ν>(SU) とスケールされる。指数Dは0から2の値を取り、D=0の時はスカラー弾性となり、D=2の時にはベクトル弾性となる。この時、臨界指数tは、 t=1+ν(d-2+D)(SU) と表すことができる。3次元空間(d=3)ではν=0.88であるから、臨界指数tは弾性機構に依存して1.88から3.64の値を取る。 試料として食品高分子を選び、動的弾性率を測定した。バレイショデンプンゲルについて、動的弾性率は濃度が高くなるにつれて小さくなり、ゲル化濃度(ゾルーゲル転移点)からの隔たりによって良好にスケールされた。臨界指数tは2.23であった。このように、スケーリングの関係に基づいて弾性率の濃度依存性のデータから、ゲルの弾性機構を推定する理論的解析方法を確立することができた。 アガロースゲルについて円二色性スペクトルを測定し、構造変化を楕円率で評価した。相関距離が楕円率によって良好にスケールされたことから、食品の物性を (弾性率)-(相関距離)-(構成高分子の構造変化) の階層としてとらえ、階層間の関係をスケーリング則で整理することが可能であることが示された。

  15. Development of Nanobiore actor for Remediation of Foods and Environments

    FUJII Tomoyuki, MIYAWAKI Osato, MIYAKE Noriko, HATTORI Yoshio, TANAKA Takaaki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    2001 - 2002

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    A thin nanoporous silica membrane was prepared by the two-step sol-gel method for the purpose that the generation of an aggregate having the higher fractal dimension was suppressed in the intermediate process. It succeeded in the preparation of the thin silica film with nanospace of about 3.3nm. The model reaction in which sea sand was made to adsorb the alkylphenol was carried out, and it was found that adsorbing nonylphenol and octylphenol and bisphenol A are quickly decomposed by laccase. The decomposition of an artificial estrogen also confirmed being possible. Log P, which was an useful parameter when we evaluate the solvent property of supercritical carbon dioxide, was estimated. As the pressure of carbon dioxide was increase on the pressure of 3.0 11.8 MPa, log P tended to increase from 0.9 to 2.0. It was shown that the polarity had appeared in carbon dioxide under the supercritical state by the pressure, and that the polarity became small with the increase in the pressure. On the esterification reaction between stearic acid and ethanol using lipase, the reaction rate rose with the increase in the pressure, and it agreed with the increase tendency of log P approximately. It was shown from these results that the solvent property as a bulk had to be considered in addition to the interaction between solute and carbon dioxide, enzyme surface, wall surface, respectively, when it examined the enzyme reaction in nanospace by using supercritical carbon dioxide as a solvent.

  16. 食品中でのタンパク質の高次構造変化と物性発現に関する研究

    藤井 智幸

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東京大学

    1999 - 2000

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    高分子ゲルでは、ゾルーゲル転移点近傍で、動的弾性率及び相関距離が、スケーリング則で記述されることが知られている。アガロースゲルの相関距離は濃度が高くなるにつれて小さくなり、濃度の転移点からの隔たりによって良好にスケールされた。得られた臨界指数は1.53となった。動的弾性率の濃度依存性についても濃度により良好にスケールされ、その臨界指数は2.31であった。弾性率の臨界指数tは、相関距離の臨界指数νと空間次元dのみならず弾性機構にも依存する。高分子鎖が固くたわみにくい場合(スカラー弾性)にはt=1+ν(d-2)と表現される。高分子鎖がやわらかい場合(ベクトル弾性)にはt=dν+1となり、網目中を高分子クラスターがブラウン運動している場合には、t=dνと記述される。アガロースゲルはスカラー弾性に従うことから、νの実験値からtを計算すると2.53となり実験値と近い値となった。以上の結果から、動的弾性率の臨界指数tと相関距離の臨界指数νからゲル中の高分子鎖の弾性機構が評価できることが示された。 一方、タンパク質系の食品ゲルについて赤外円二色性スペクトルを測定し、タンパク質のアミド結合に由来するシグナルについて状態変化に対応した変化を観測することができた。これにより、タンパク質の高次構造変化に基づいたスケーリング解析が可能となると思われる。

  17. 食品高分子集合体の非破壊無侵襲測定および状態解析

    藤井 智幸

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東京大学

    1996 - 1996

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    代表的な食品高分子集合体であり、小麦粉ドウの物性・品質と密接に関係しているグルテンネットワークについて検討を加えた。高品質のパン製品をより効率的かつ安定的に生産するためには、焼成工程直前での生地の品質を制御・最適化する必要がある。従って、ドウ(生地)の非破壊的品質判定法が開発されれば、加工プロセスの効率化、製品品質の安定化に寄与するものと考えられる。本研究では、グルテンネットワークの形成過程を定量的に評価することを目的とし、小麦粉ドウについてin situ ATR FT-IR測定を試み、解析を加えた。試料ドウは小麦粉と食塩に水を加え一定時間混捏して調製した。得られたドウを水平式ATRユニット上に密着させドウの赤外吸収スペクトルを測定した。ATRの内部反射スペクトルにはZnSe45°を用いた。ドウの赤外吸収スペクトルには、OH伸縮あるいはNH伸縮由来の3600-3000cm^<-1>の吸収、タンパク質に特徴的なアミドI、IIの吸収および糖由来の1200-950cm^<-1>の吸収が認められた。アミドのシグナルは熟成が進むにつれて増大したことから、グルテンネットワークの形成との相関が示唆された。さらに、ミキシング過程でのドウの状態変化の計測を試みたところ、タンパク質に特徴的なアミドI、IIの吸収は混捏時間が長くなるにつれて増大するのに対し、デンプン由来の1200-950cm^<-1>の吸収は一旦増大した後減少する傾向が認められた。この結果から、混捏が進むにつれてタンパク質が溶解しグルテンが形成されてゆき、形成されたグルテンがデンプン粒を包み込み始めたためデンプン由来のシグナルが弱まったと考えられた。

  18. ゾル-ゲル転移点近傍における食品高分子集合体の高次構造・状態解析

    藤井 智幸

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東京大学

    1995 - 1995

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    本研究においては、力学物性値を食品高分子の分子特性の観点から体系化することを目指し、高分子の構造変化の進行と高分子集合体の形成との関係を平衡論的にあるいは速度論的に解析した。高分子のオーダー・ディスオーダー転移の過程を解析するために、円二色性(CD)スペクトルを測定した。アガロース水溶液のCDスペクトルは、温度変化にそれほど依存しない鋭いシグナルと温度変化に敏感なブロードなシグナルの2つの吸収が認められた。温度変化に敏感なシグナルから二状態転移を仮定しファントホッフの式を用いて転移熱を求めることができた。一方、DSCを用いてゲル化に伴うエンタルピー変化を求めた。ゲル化に伴うエンタルピー変化は、高分子自体の構造変化に起因する熱的変化と高分子間相互作用に起因する熱的変化の両者の和となると予想されるが、ゲル化しない低濃度条件からゲル化する濃度条件にわたって発熱エンタルピーがアガロース濃度に比例したことから、観測された熱的変化のほとんどはオーダー・ディスオーダー転移に起因するものであることが示された。また、CD測定の結果から得られた転移エンタルピーがDSC測定の結果とほぼ一致したことから、アガロース分子の構造転移は二状態転移であることが示された。以上の結果から、アガロースの降温ゲル化過程においてはオーダー・ディスオーダー転移が律速になっており、秩序化した領域同士の迅速な架橋化を経てゲル化にいたると考えられた。また、秩序化の程度を知ることによりゲル化挙動を把握できる可能性が示された。

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  1. 新潟県立教育センター主催先端科学技術体験講座(中学校理科)生物領域

    2013/09/10 - 2013/09/11

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    先端科学技術体験講座(中学校理科)生物領域、講師

  2. 新潟県立教育センター主催先端科学技術体験講座(中学校理科)生物領域

    2012/09/11 - 2012/09/12

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    中学理科教員に対する研修

  3. 新潟県立教育センター主催「平成21年度中学校理科教員指導力向上研修 理科第2分野研修(生物領域)」

    2009/10/26 - 2009/10/27

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    中学理科教員対象の研修会 講師

  4. 新潟県立教育センター主催「平成20年度中学校理科教員指導力向上研修 理科第2分野研修(生物領域)」

    2008/10/27 - 2008/10/28

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    中学理科教員対象の研修会 講師

  5. 新潟県立新津高等学校(平成19年度文部科学省サイエンス・ パートナーシップ・プログラムプロジェクト事業「研究者招聘講座」)

    2007/12/25 - 2007/12/26

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    出張講義 講師

  6. ゲル状食品のテクスチャー評価とその水産練り製品開発への応用

    第68回水産加工技術セミナー

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  7. 高圧利用食品の科学

    仙台青陵中等教育学校「1日大学」

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  8. 特別講座「学問の世界」、「高圧食品の世界」

    2018/05/26 -

  9. 東北大学サイエンスカフェ第148回「食べ物を美味しくする加工技術 ~故きをたずねて新しきを知る~」

    2018/01/19 -

  10. 「東京オトナ大学」「日本食のおいしさと食品加工技術」

    2017/12/03 -

  11. 市民フォーラム「日本食のグローバル展開を考える」、「グローバル展開に必要な保存技術を考える」

    2016/11/05 -

  12. 第15回超臨界流体部会サマースクール「高圧熱水を用いた未利用資源の有効活用」

    2016/08/09 -

  13. 第27回通常総会記念講演「食品分野における産学連携のケーススタディ」

    2016/05/25 -

  14. プロセス設計見学会「高圧食品加工の科学」

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  15. 第7回 研究小集会 大豆「豆乳コロイド分散系のユニークな側面を科学する」

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  16. 第26回食品ハイドロコロイドシンポジウム、「豆乳コロイドの凝集・分散」

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  17. 東北大学農学カルチャー講座、「美味しい食べものにはわけがある」

    2015/02/21 -

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    日本農芸化学会、(財)翠生農学振興会共同主催、サイエンスカフェ、東北大学農学カルチャー講座、「美味しい食べものにはわけがある」

  18. 東北大学大学院農学研究科、みやぎ県民大学講座「私たちの食料と健康と環境」

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  20. 仙台市産業振興事業団主催産学連携セミナー「第84回寺子屋せんだい」

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  21. 日本生物工学会技術セミナー「食品加工技術と食のメタボロミクスの最前線」

    2013/03/23 -

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  22. 食品工学講習会

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    日本食品工学会主催「平衡と物質移動」、「抽出」について講義した

  23. 日本食品工学会春季講演会、フォーラム2012“美味しく安全な食品”を目指す高付加価値化加工技術

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    高圧処理を用いた食材の機能性増強法

  24. 消費科学センター主催 第177期消費者大学公開シンポジウム

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    天災と人災 人と自然とのかかわり

  25. 山形県農産加工開発研究協議会、やまがた 食産業クラスター協議会主催、平成23年度第2回山形県農産加工開発研究協議会研修会

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  26. 東北大学大学院農学研究科、(財)翠生農学振興会共同主催 第41回東北大学農学カルチャー講座

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    東日本大震災 ~復興に向けた農学研究の最前線~

  27. (社)日本粉体工業技術協会粉砕分科会・食品粉体分科会共同主催 米粉製造と利用技術シンポジウム2011

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    米粉の微細構造制御の可能性

  28. サイエンスフォーラム主催 食品の非加熱殺菌2011

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    高圧下の微生物の挙動と制御、食品高機能化の可能性

  29. 文部科学省企画 (独)教員研修センター主催 平成23年度産業・情報技術者養成研修(農業A-2)

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    講師として参加し、「食の安全・安心を支える科学 ~リスクについて考えてみよう~」という演題で講演した。

  30. 日本応用糖質科学会東北支部主催 平成23年度講演会

    2011/07/09 -

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    講師として参加し、「米粉の微細構造制御の可能性」という演題で講演した。

  31. 澱粉研究懇談会主催 第51回澱粉研究懇談会

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    講師として参加し、「米粉のコアシェル型構造とその特性」という演題で講演した。

  32. H・P未来産業創造研究会主催 平成23年度H・P未来産業創造研究会

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    講師として参加し、「多様な変化を生み出す高圧処理」という演題で講演した。

  33. 新潟県立教育センター主催 平成22年度中学校理科教員指導力向上事業(生物領域)

    2010/10/29 -

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    講師として参加し、中学校理科教員に実験を指導した。

  34. 宮城県産業技術総合センター主催 平成22年度第2回みやぎの米粉技術研究会

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    講師として参加し、「米粉のデンプン構造と吸水との関係」という演題で講演した。

  35. 宮城県産業技術総合センター主催 平成22年度第1回みやぎの米粉技術研究会

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    講師として参加し、「顕微鏡で分かる米粉の特徴~素材による澱粉構造の違いと粉砕の影響~」という演題で講演した。

  36. 東経連事業化センター主催 第16回宮城事業化コーディネーター・ミーティング

    2010/07/21 -

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    講師として参加し、「食品はユニークな複合材料である~不均一構造の空間構造制御~」という演題で講演した。

  37. 日本伝熱学会東北支部第49期春季講演会

    2010/05/07 -

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    講師として参加し、「高圧利用食品の科学」という演題で講演した。

  38. 文部科学省企画、(独)教員研修センター実施、平成21年度産業・情報技術等指導養成研修農業A-2

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  39. 前橋工科大学主催「平成20年度前橋工科大学公開講座 食の安全・安心を支える科学」

    2008/11/08 -

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    2008/07/28 -

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    高校(農業)教員の研修会 講師

  41. 新潟県村上地域振興局「食の安全・安心フォーラム」

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