Rheological properties of potato starch pastes treated by 60Co-γ radiation

被引：0
|
作者：
Zhang Y. [1 ,2 ]
Tan X. [1 ,2 ]
Xiong X. [3 ,4 ]
Wang K. [5 ]
Xiao S. [6 ]
机构：
[1] Food Science and Technology College, Hunan Agricultural University
[2] Key Laboratory for Food Science and Biotechnology of Hunan Province
[3] Horticultural and Landscape College, Hunan Agricultural University
[4] Key Laboratory for Corp Germplasm Innovation and Utilization of Hunan Province
[5] Hunan Institute of Atomic Energy Application in Agriculture
[6] Hunan Longshan Jinshan Industrial Co. Ltd
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2010年 / 26卷 / 11期
关键词：
60Co-γ irradiation; Dynamic rheology; Irradiation; Potato starch; Rheology; Starch; Static rheology;
D O I：
10.3969/j.issn.1002-6819.2010.11.064
中图分类号：
学科分类号：
摘要：
In order to study the effects of γ-ray radiation on rheological properties of starch paste, potato starches were treated by 60Co-γ irradiation with different irradiation dose(0-400 kGy) and their pastes were prepared. By adopting rheometer, the rheological properties of the pastes of potato starch after treated with different irradiation dose were investigated. The static rheological properties investigation revealed that the pastes of potato starches after treated with different irradiation dose showed a phenomenon of so-called pseudo-plastic fluid characteristics and this was consistent with power law. The higher the irradiation dose, the lower the apparent viscosity and share-thinning nature, and it gradually performed similar like Newtonian fluids. The determination of dynamic rheological properties indicated that the elastic modulus, the maximum elastic modulus, the temperature in correspondence to the maximum elastic modulus and the elastic modulus at 20°C decreased with the increase of irradiation dose. The research results will provide theoretical data for application of potato starch treated by 60Co-γ irradiation.
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页码：379 / 383
页数：4
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