等电点
乳清蛋白
电阻率和电导率
无定形固体
电导率
材料科学
化学工程
复合材料
化学
色谱法
结晶学
有机化学
电气工程
工程类
物理化学
酶
作者
Guan Chen,Xiang He,Hui-lian Xu,Meili Shao,Jin-Yu Ma,Zi-Wen Gao
出处
期刊:Journal of Dairy Research
[Cambridge University Press]
日期:2020-02-01
卷期号:87 (1): 103-109
被引量:2
标识
DOI:10.1017/s0022029919000876
摘要
Abstract We compared the electrical conductivity from two different aggregates of whey protein concentrates (WPC) film: conventional amorphous aggregation at natural pH (pH 6.5) and amyloid fibrils at a low pH (pH 2.0) far away from the isoelectric point. The two types of film fabricated by these solutions with different aggregate structures showed large variations in electrical conductivity and other properties. The WPC fibril film (pH 2.0) exhibited higher electrical conductivity than that of the conventional WPC film (pH 6.5), improved mechanical properties and oil resistance, due to varying morphology, higher surface hydrophobicity and more (absolute value) surface charge of film-forming solutions. The evidence from this study suggests that fibrilized WPC with high-ordered and β-sheets-rich structures fabricated high electrical conductivity film, which broadens the potential application of fibrils as functional bio-nanomaterials.
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