Toward underlying applications for rice starches as functional carbohydrate foods

2013 Fiscal Year Final Research Report

• Project/Area Number: 23500937
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Eating habits, studies on eating habits
• Research Institution: Tokyo University of Agriculture
• Principal Investigator: AKUZAWA Sayuri 東京農業大学, 応用生物科学部, 教授 (60256641)
• Co-Investigator(Kenkyū-buntansha): FUJITA Naoko 秋田県立大学, 生物資源科学部, 准教授 (90315599) ; HAYAKAWA Fumiyo 独立行政法人農業・食品産業技術総合研究機構, その他部局等, 研究員 (00282905) ; MATSUSHIMA Ryo 岡山大学, その他部局等, 助教 (80403476)
• Project Period (FY): 2011 – 2013
• Keywords: 米 / 澱粉 / 構造解析 / レオロジー / 粘弾性 / 炊飯米

Research Abstract

Starch synthase I, IIIa (SSIIIa), Pullulanase-deficient rice mutant, that was completely absent in these activity, and the parental Nihonbare were characterized to develop the relationship between the structure of these starches and their rheological properties of starch pastes.
The shape of amyloplast of SSIIIa was unsteady compared to the wild type though, these of PUL and SSI was very similar shape with the wild type. The starch paste of SSIIIa showed the lowest value of the storage modulus and the loss modulus and the relaxation time of H+ was the longest among them. The sensory evaluation score of these cooked mutant rice were lower than wild type cooked rice, so these mutant were suitable as a powder as a functional carbohydrate foods.

Research Products

• [Journal Article] Amyloplast-Localized SUBSTANDARD STARCH GRAIN4 Protein Influences the Size of Starch Grains in Rice Endosperm (2014)
  • Author(s): Matsushima, R., Maekawa M., Kusano, M., Kondo, H., Fujita, N., Kawagoe, Y., Sakamoto, W
  • Journal Title: Plant Physiology Volume: 164巻 Pages: 623-636
  • DOI: 10.1104/pp.113.229591
  • Peer Reviewed
• [Journal Article] Study on the use of waste materials, such as Adzuki bean-coats and water-elution products, from Adzuki Ann manufacturing (2013)
  • Author(s): Akuzawa S, Minemura T, Ohbayashi H, Takahashi H, Maki M, Hattori K
  • Journal Title: Japan Association of Food Preservation Scientists Volume: 39 Pages: 149-154
  • Peer Reviewed
• [Journal Article] Classification of Japanese texture terms (2013)
  • Author(s): Hayakawa F, Kazami Y, Nishinari K, Ioku K, Akuzawa S, Yamano Y, Baba Y, Kohyama K
  • Journal Title: Journal of Texture Studies Volume: 44 Pages: 140-159
  • Peer Reviewed
• [Journal Article] Functional study of rice starch synthase I (SSI) by using double mutant with lowered activities of SSI and isoamylase1 (2013)
  • Author(s): Fujita N, Hanashiro I, Toyosawa Y, Nakamura Y
  • Journal Title: Journal of Applied Glycoscience Volume: 60 Pages: 45-51
  • Peer Reviewed
• [Journal Article] 澱粉変異体米の解析と利用 (2013)
  • Author(s): 藤田直子
  • Journal Title: 化学と生物「セミナー室」 Volume: 51 Pages: 400-407
• [Journal Article] 澱粉生合成研究の最前線と変異体米澱粉の利用と展望 (2013)
  • Author(s): 藤田直子
  • Journal Title: 応用糖質科学「ミニレビュー」 Volume: 3 Pages: 202-204
• [Journal Article] 調理におけるデンプンの物性と利用 (2012)
  • Author(s): 阿久澤さゆり
  • Journal Title: 日本調理科学会誌 Volume: 45 Pages: 238-243
• [Journal Article] 澱粉粒の簡便観察法の開発とその利用 (2012)
  • Author(s): 松島 良
  • Journal Title: 応用糖質科学 Volume: 2 Pages: 147-149
• [Journal Article] 日本語テクスチャー用語の対象食物名の収集と解析 (2011)
  • Author(s): 早川文代, 風見由香利, 井奥加奈, 阿久澤さゆり, 西成勝好, 神山かおる
  • Journal Title: 日本食品科学工学会誌 Volume: 58 Pages: 359-374
  • Peer Reviewed
• [Presentation] 澱粉粒の大きさを制御する SSG4 遺伝子の同定と解析 (2014)
  • Author(s): 松島良, 前川雅彦, 草野都, 近藤秀樹, 藤田直子, 坂本亘
  • Organizer: 日本育種学会第125回講演会
  • Place of Presentation: 東北大学
  • Year and Date: 20140321-22
• [Presentation] Rice starch biosynthetic enzyme complexes have the ability to generate glucans (2014)
  • Author(s): Naoko Crofts, Natsuko Abe, Ryo Matsushima, Ian J. Tetlow, Michael J. Emes, Yasunori Nakamura, Naoko Fujita
  • Organizer: 第55回日本植物生理学会年会
  • Place of Presentation: 富山大学
  • Year and Date: 20140318-20
• [Presentation] Molecular dissection of starch grain size control in rice endosperm (2013)
  • Author(s): Matsushima, R., Maekawa, M., Fujita, N., Kawagoe, Y., Sakamoto, W
  • Organizer: 7th International Rice Genetics Symposium
  • Place of Presentation: Manila, Philippines
  • Year and Date: 20131105-08
  • Invited
• [Presentation] 「食」をささえるデンプンの物性制御と新規機能性デンプンの創出 (2012)
  • Author(s): 阿久澤さゆり
  • Organizer: 第6回多糖の未来フォーラム
  • Year and Date: 20120000
  • Invited
• [Presentation] コメ澱粉の物性・構造と高度利用 (2012)
  • Author(s): 阿久澤さゆり
  • Organizer: 第39回食品の物性に関するシンポジウム
  • Year and Date: 20120000
  • Invited