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Effect of Acid Modification on the Properties of Potato Starch Pastes and Starch Film

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Abstract:

The effect of acid modification using 1mol/L HCl on viscosity, thermal properties and mechanical properties of potato starch pastes and starch film were investigated. After acid modification, the surface of starch granules did not show more roughness and viscosity of starch pastes become lower. The results of DSC indicated that acid should act on amorphous region of starch firstly and would act on the crystallization region with the longer treatment time. In the very close viscosity scope, the mechanical properties of starch films were increased obviously after acid modification.

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Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

2648-2651

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.2648

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Online since:

July 2011

Authors:

Wen Yu Wang, Xin Jin, Shuan Qing Hou, Yu Feng Zhang, Xiao Xu Sha

Keywords:

Acid Modification, Film, Mechanical Property, Starch, Thermal Property

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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