Starch gelatinization under shearless and shear conditions

Xie, Fengwei, Liu, Hongshen, Chen, Pei, Xue, Tao, Chen, Ling, Yu, Long and Corrigan, Penny (2006) Starch gelatinization under shearless and shear conditions. International Journal of Food Engineering, 2 5: 6-1-6-31. doi:10.2202/1556-3758.1162

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Author Xie, Fengwei
Liu, Hongshen
Chen, Pei
Xue, Tao
Chen, Ling
Yu, Long
Corrigan, Penny
Title Starch gelatinization under shearless and shear conditions
Journal name International Journal of Food Engineering   Check publisher's open access policy
ISSN 1556-3758
Publication date 2006-12
Sub-type Critical review of research, literature review, critical commentary
DOI 10.2202/1556-3758.1162
Open Access Status File (Publisher version)
Volume 2
Issue 5
Start page 6-1
End page 6-31
Total pages 31
Place of publication Berlin, Germany
Publisher Walter de Gruyter
Language eng
Abstract This article reviews the development of studying starch gelatinization under shear and shearless conditions, in particular the technologies used to detect the degree of gelatinization. Advantages and disadvantages of each technology were discussed and then some examples were presented to demonstrate their application. A new technology RheoScope, an instrument that can measure viscosity under shear stress and simultaneously observes variation of starch particles using a microscope, was also introduced. It was found the definition of "gelatinization" could be different for different detection technologies. Under shearless condition full gelatinization of starch needs about ratio of water 3/starch 1, while the gelatinization under shear condition requires less water content since shear stress enhances the processing. The number of endotherm and enthalpy of gelatinization depends on amylose/amylopectin, moisture and lipid content.
Keyword Shear
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
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Created: Thu, 10 Mar 2011, 13:46:01 EST by David Fengwei Xie on behalf of Aust Institute for Bioengineering & Nanotechnology