食品科学 ›› 2009, Vol. 30 ›› Issue (15 ): 99-103.doi: 10.7506/spkx1002-6630-200915022

• 基础研究 • 上一篇    下一篇

核磁共振及其成像技术研究抗性淀粉和普通淀粉体外消化的影响

张锦胜1,2,金志强1,2,刘玉环1,2,林向阳1,3,阮榕生1,2,*,钱 菲1,2   

  1. 1.南昌大学 食品科学与技术国家重点实验室 2.生物质转化教育部工程研究中心 3.福州大学生物科学与工程学院
  • 收稿日期:2009-05-06 出版日期:2009-08-01 发布日期:2010-12-29
  • 通讯作者: 阮榕生 E-mail:ruanx001@umn.edu
  • 基金资助:

    国家重点实验室自由探索课题(SKLF-TS-2008014);江西省教育厅项目(S00478);教育部“长江学者和创新团队发展计划”项目(IRT0540);福建省青年科技人才创新项目(2007F3052);福建省新世纪优秀人才支持计划项目(XSJRC2007-23)

Use of NMR and MRI to Study in vitro Digestibility of Resistant Starch and Normal Starch

ZHANG Jin-sheng1,2,JIN Zhi-qiang1,2,LIU Yu-huan1,2,LIN Xiang-yang1,3,RUAN Rong-sheng1,2,*,QIAN Fei1,2   

  1. 1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China;
    2. Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China;
    3. College of Biological Science and Technology, Fuzhou University, Fuzhou 350002, China
  • Received:2009-05-06 Online:2009-08-01 Published:2010-12-29
  • Contact: RUAN Rong-sheng E-mail:ruanx001@umn.edu

摘要:

采用核磁共振及其成像技术(NMR 和MRI)研究抗性淀粉(RS)和普通淀粉在体外的消化情况。结果表明,从弛豫时间T22 和T23 可看出,普通淀粉中T22 的下降趋势比抗性淀粉明显,而T23 在普通淀粉中比在抗性淀粉中增加趋势明显。NMR 在研究食品体系中的水分分布和流动性来说明内部物质间的相互作用,体现出明显的优势;抗性淀粉在体内的消化,表现出明显的抗性。

关键词: 核磁共振(NMR), 抗性淀粉(RS), 体外消化

Abstract:

The in vitro assimilation of resistant starch (RS) and normal starch of wheat, corn and sweet potato was investigated using NMR and MRI. A more remarkable decreasing tendency of T22 and a more remarkable increasing tendency of T23 were observed in normal starch in comparison with RS. NMR presents obvious advantages in studying water mobility and distribution to account for the interactions among components in a food system. In addition, RS was more resistant to in vivo digestion than normal starch.

Key words: NMR, RS, starch, assimilation in vitro

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