化学
溶解度
单体
大豆蛋白
蛋白质聚集
光散射
动态光散射
大小排阻色谱法
化学工程
色谱法
散射
聚合物
有机化学
生物化学
光学
物理
工程类
纳米颗粒
酶
作者
Jian Guo,Xiaoquan Yang,Xiuting He,Na‐Na Wu,Jinmei Wang,Wei Gu,Yuanyuan Zhang
摘要
In this work, different thermal aggregation behaviors of soy β-conglycinin and glycinin at pH 7.0 were characterized with size exclusion chromatography and low-angle light scattering. Limited aggregation that grew via the consumption of "monomers" was detected in β-conglycinin, forming soluble aggregates. For glycinin, the association between the aggregates that led to the appearance of insoluble materials was observed. Heated with β-conglycinin, the assembly between the glycinin aggregates was terminated and its solubility was recovered. The structure of the soluble and insoluble aggregates was analyzed by small-angle X-ray scattering and dynamic light scattering. Unlike the β-conglycinin soluble aggregates that possessed limited size and less compact conformation, particles with a denser core and a less dense outer shell were found in the glycinin insoluble aggregates. Evidence is presented to reveal the transition between the soluble and insoluble aggregates and the role of β-conglycinin in the solubilization of the soy protein aggregates during heating.
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