Structure of starch as nano-architecture

• Project/Area Number: 26450183
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Food science
• Research Institution: Osaka Electro-Communication University
• Principal Investigator: Yuguchi Yoshiaki 大阪電気通信大学, 工学部, 教授 (00358300)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 澱粉 / グリコーゲン / 多糖類 / 小角Ｘ線散乱 / アミロース / ゲル / グルカンデンドリマー

Outline of Final Research Achievements

The solution structures of starch (amylose and amylopectin) and glycogen were examined by light scattering and small angle X-ray scattering method to reveal the wide range of structure covering over local and whole of molecular chain. The dynamics of gelation of amylose was observed by time-resolved small angle X-ray scattering. The correlation of structure and property of starch and glycogen was researched.

Research Products

• [Int'l Joint Research] ノルウェー科学技術大学(NTNU)(ノルウェー)
• [Int'l Joint Research] ベトナム科学技術アカデミー(VAST)(ベトナム)
• [Int'l Joint Research] ノルウェー科学技術大学(NTNU)(ノルウェー)
• [Int'l Joint Research] ベトナム科学技術アカデミー(VAST)(ベトナム)
• [Journal Article] Structure, conformation in aqueous solution and antimicrobial activity of ulvan extracted from green seaweed Ulva reticulata (2017)
  • Author(s): Tran Thi Thanh Van、Truong Hai Bang、Tran Nguyen Ha Vy、Quach Thi Minh Thu、Nguyen Thi Nu、Bui Minh Ly、Yuguchi Yoshiaki、Thanh Thi Thu Thuy
  • Journal Title: Natural Product Research Volume: - Issue: 19 Pages: 1-6
  • DOI: 10.1080/14786419.2017.1408098
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Primary structure, Conformation in aqueous solution, and Intestinal immunomodulating activity of fucoidan from two brown seaweed species Sargassum crassifolium and Padina australis (2016)
  • Author(s): Y. Yuguchi, V. T. T. Tran, L. M. Bui, S. Takebe, S. Suzuki, N. Nakajima, S. Kitamura, T. T. T. Thanh
  • Journal Title: Carbohydrate Polymers Volume: 147 Pages: 69-78
  • DOI: 10.1016/j.carbpol.2016.03.101
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Local structure of Ca2+ induced hydrogels of alginate-oligoguluronate blends determined by small-angle-X-ray scattering (2016)
  • Author(s): Y. Yuguchi, A. Hasegawa, A. M. Padol, K. I. Draget, B. T. Stokke
  • Journal Title: Carbohydrate Polymers Volume: 152 Pages: 532-540
  • DOI: 10.1016/j.carbpol.2016.07.020
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Study on Branched Structure–Physiological Activity Relationship of Fucoidan (2016)
  • Author(s): Y. Yuguchi, L. M. Bui, V. T. T. Tran, T. T. T. Thanh
  • Journal Title: Chemistry Letters Volume: 45 Issue: 7 Pages: 840-842
  • DOI: 10.1246/cl.160189
  • NAID: 130005252986
  • ISSN: 0366-7022, 1348-0715
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Small-angle X-ray scattering measurements of gels produced from α-amylase-treated cassava starch granules (2016)
  • Author(s): T. Ichihara, J. Fukuda, T. Takaha, S. Suzuki, Y. Yuguchi, S. Kitamura
  • Journal Title: Food Hydrocolloids Volume: 55 Pages: 228-234
  • DOI: 10.1016/j.foodhyd.2015.11.012
  • Peer Reviewed
• [Presentation] Gelation of polysaccharides observed by SAXS (2017)
  • Author(s): Y. Yuguchi
  • Organizer: 9th KIFEE International Symposium on Environment, Energy and Materials
  • Place of Presentation: 同志社大学、京都市
  • Year and Date: 2017-03-09
  • Int'l Joint Research
• [Presentation] Structural formation of xyloglucan by addition of polyphenols (2017)
  • Author(s): Y. Yuguchi
  • Organizer: 5th EPNOE International Polysaccharide Conference
  • Int'l Joint Research
• [Presentation] Structural formation of some polysaccharides as observed by time-resolved SAXS (2017)
  • Author(s): K. Yamamoto, S. Suzuki, S. Kitamura, Y. Yuguchi
  • Organizer: 5th EPNOE International Polysaccharide Conference
  • Int'l Joint Research
• [Presentation] in situ中和法によるα-1,4グルカンおよびβ-1,3グルカンのゲル化と構造形成 (2017)
  • Author(s): 山本郷湖、鈴木志保、北村進一、湯口宜明
  • Organizer: 第66回高分子討論会
• [Presentation] ポリフェノール添加によるキシログルカンのゲル形成 (2016)
  • Author(s): 湯口宜明，河端正憲
  • Organizer: 日本応用糖質科学会平成28年度大会
  • Place of Presentation: 福山大学、福山市
  • Year and Date: 2016-09-14
• [Presentation] Structural formation and gelation of neutral polysaccharides as observed by small angle X-ray scattering (2016)
  • Author(s): Y. Yuguchi, K. Yamamoto, S. Suzuki and S. Kitmura
  • Organizer: 23th Polymer Networks Group Meetings,PNG2016
  • Place of Presentation: Stockholm, Sweden
  • Year and Date: 2016-06-20
  • Int'l Joint Research
• [Presentation] 酵素合成グルカンデンドリマーの構造と形成過程 (2016)
  • Author(s): 蔭山茜, 柳瀬美千代, 鷹羽武史, 湯口宜明
  • Organizer: 日本農芸化学会関西支部例会
  • Place of Presentation: 京都大学（京都府京都市）
  • Year and Date: 2016-02-06
• [Presentation] Structural formation of some polysaccharides as observed by time-resolved small angle X-ray scattering (2015)
  • Author(s): Y. Yuguchi, K. Yamamoto, S. Suzuki and S. Kitmura
  • Organizer: 8th KIFEE International Symposium
  • Place of Presentation: NTNU(Norway)
  • Year and Date: 2015-09-20
  • Int'l Joint Research
• [Presentation] Structural formation of xyloglucan by addition of polyphenols (2015)
  • Author(s): Y. Yuguchi, M. Kawabata
  • Organizer: 8th KIFEE International Symposium
  • Place of Presentation: NTNU(Norway)
  • Year and Date: 2015-09-20
  • Int'l Joint Research
• [Presentation] 酵素合成グルカンデンドリマーの溶液構造と形成過程 (2015)
  • Author(s): 蔭山茜, 柳瀬美千代, 鷹羽武史, 湯口宜明
  • Organizer: 日本応用糖質科学会平成27年度大会
  • Place of Presentation: 奈良春日野国際フォーラム(奈良県奈良市）
  • Year and Date: 2015-09-16
• [Presentation] 酵素合成したグルカンデンドリマーの水溶液中における構造解析 (2015)
  • Author(s): 蔭山茜、柳瀬美千代、鷹羽武史、湯口宜明
  • Organizer: セルロース学会第２２回年次大会
  • Place of Presentation: 北海道大学学術交流会館
  • Year and Date: 2015-07-09 – 2015-07-10
• [Presentation] 酵素合成したグルカンデンドリマーの水溶液中における構造解析 (2015)
  • Author(s): 蔭山茜, 柳瀬美千代, 鷹羽武史, 湯口宜明
  • Organizer: セルロース学会第22回年次大会
  • Place of Presentation: 北海道大学（北海道札幌市）
  • Year and Date: 2015-07-09