FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (6): 28-31.

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Study on Relationship of Glass Transition Temperature of Starch with Water Content

ZHAN  Shi-Ping, CHEN  Shu-Hua,   Liu-Hua-Wei,   Li-Zhuo,   Huang-Hui,   Tan-Ji-Ye   

  1. 1.College of Environment and Chemical Engineerning Dalian University, Dalian 116622, China; 2.Dalian University of Technology, Dalian 116622, China
  • Online:2006-06-15 Published:2011-09-22

Abstract: The glass transition temperatures (Tgs) of four kinds of starches with different water content are measured with the dilatometer. Plastification effect of the water and its mechanism are both studied based on the experimental results. A quantitative expression relating the Tg with the water content is obtained, which is a base for predicting the Tg and determining the processing and storage conditions of starch.

Key words: glass transition, starch, water content, dilatometer