Microstructure and rheological properties of mixtures of acid-deamidated rice protein and dextran
文献类型: 外文期刊
第一作者: Li, Xianghong
作者: Li, Xianghong;Liu, Yongle;Yi, Cuiping;Cheng, Yunhui;Zhou, Sumei;Hua, Yufei
作者机构:
关键词: Rice protein;Acid-deamidation;Microstructure;Rheology
期刊名称:JOURNAL OF CEREAL SCIENCE ( 影响因子:3.616; 五年影响因子:3.891 )
ISSN: 0733-5210
年卷期: 2010 年 51 卷 1 期
页码:
收录情况: SCI
摘要: Microstructure and theological properties of mixtures of acid-deamidated rice protein (ADRP) and dextran were studied. The microstructures of the ADRP/dextran mixtures were described using confocal laser scanning microscopy (CLSM), which revealed the effective association among ADRP and formation of a protein network-like structure in the mixture with higher protein concentration. Mechanical properties of the mixtures were observed by rheometer. The steady shear measurements showed a correlation with the CLSM results via a marked increase in the viscosity of the mixtures with protein association. Frequency sweeps further evidenced the build-up of the gelled network-like structure. The differences in fracture forces observed by textural measurements between mixture and single ADRP gel also suggested the difference in microstructures. The formation of network-like structure appeared to have occurred through a phase separation of ADRP and dextran. (c) 2009 Elsevier Ltd. All rights reserved.
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