文献类型： 外文期刊
第一作者： Huang, Fei
作者： Huang, Fei;Liu, Yang;Zhang, Ruifen;Dong, Lihong;Deng, Yuanyuan;Wei, Zhencheng;Zhang, Mingwei;Yi, Yang;Wang, Guangjin
作者机构：
关键词： Litchi pulp; Polysaccharide; theological properties
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）
ISSN： 0141-8130
年卷期： 2018 年 112 卷
页码：
收录情况： SCI
摘要： Litchi polysaccharide (IP) was extracted from litchi pulp. Its chemical composition, microstructure, zeta potential, flow and viscoelastic behavior were investigated. LP contained uronic acid (41.18%), neutral sugar (4223%), and protein (2.72%). The monosaccharide composition was mostly arabinose, galactose, and a small amount of mannose, rhamnose and glucose. Scanning electron microscopy (SEM) showed IP was porous network structure. LP concentration had no effect on its zeta potential value while salts reduced them. LP showed shear-thinning behavior during the tested shear rate range. The power-law model was used to evaluate the flow behavior of LP; both its flow behavior index and consistency index changed with different concentrations. The viscosity of LP increased under acidic conditions (pH 2-4), but was stable with heat treatment. The LP dispersion displayed as a liquid viscoelastic behavior in 1% and 2% concentrations and behaved as an elastic gel at 3% concentration as well as the addition of NaCl and CaCl2. (C) 2018 Published by Elsevier B.V.
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