数字农科院2.0

Flaxseed protein isolates-stabilized oil-water interface: Role of globulin and albumin

文献类型： 外文期刊

作者： Jing Yang;Dapeng Li;Muthupandian Ashokkumar;Yuqing Duan;Haihui Zhang;Jiaqi Shao;Dengfeng Peng;Qianchun Deng

作者机构：

关键词： Flaxseed protein fractions;Interfacial behavior;Oil–water interface;Structure properties

期刊名称： Food Hydrocolloids

ISSN： 0268-005X

年卷期： 2025 年 172 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Flaxseed protein isolates (FPIs) are widely used in the creation of multiphase system foods owing to their excellent interfacial and multifunctional properties. However, the contributions of their main components to the interfacial and emulsifying properties remain unclear. Therefore, the structural, interfacial, and functional properties of FPIs and their main component proteins were studied. The results showed that high-purity proteins of flaxseed globulin (FG) and flaxseed albumin (FA) were obtained. FG exhibited lower solubility, larger molecular weight, higher hydrophobicity, and higher viscoelastic modulus. The structure of FA was different, and the interfacial film modulus was low. Differences in protein structure led to discrepancies in protein stable interface system. FG tended to form a rigid interfacial layer and exhibited good stability during emulsification. The hydrophobic domains within the protein facilitated the formation of the interfacial network through enhanced structural rearrangement, thereby increasing emulsion stability. Conversely, the FA-stabilized oil–water interfaces exhibited fragile microstructural characteristics that correlated with reduced emulsifying activity. The adsorption behavior of a protein is governed by its structure. Within the interfacial film formed by FPI, FG served as the primary framework, whereas FA functioned as a filler. These findings establish a mechanistic correlation between the structural attributes of proteins and the stability of protein-stabilized emulsions.

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