FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (17 ): 20-23.doi: 10.7506/spkx1002-6630-200917002

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NMR and MRI Studies of Water Mobility in Native and Resistant Starches

WANG Na1，ZHANG Jin-sheng1，JIN Zhi-qiang1，LIU Yu-huan1，LIN Xiang-yang2，QIAN Fei1，ZHAO Qin-qin1， RUAN Rong-sheng1,*   

  1. 1. State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion, Ministry of
    Education, Nanchang University, Nanchang 330047, China；2. College of Biological Science and Technology, Fuzhou University,
    Fuzhou 350002, China
  • Received:2009-04-16 Online:2009-09-01 Published:2014-04-14
  • Contact: RUAN Rong-sheng E-mail:ruanx001@umn.edu

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Abstract:

NMR and MRI were used for the studies of water mobility in native and resistant starches which can not be achieved easily by conventional techniques. With the change in the nature of starch, the water mobility was changed significantly. The hydration capacity of resistant starch was rather higher than that of native starch, while both the water holding capacity and the water mobility were lower. From NMR analysis, we conclude that the water mobility in resistant starch is lower than that in native starch.

Key words: nuclear resonance, starch, RS (resistant starch), water mobility

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