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Modification of soy protein isolate using dielectric barrier discharge cold plasma assisted by modified atmosphere packaging

Food Chem. 2022;

Qi Li, Fei Shen, Xueming He, Changrui Xing, Wenjing Yan, Yong Fang, Qiuhui Hu

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Proteins, Expression, Isolation and Analysis	… Sure-PAGE, Tris-MOPS-SDS running buffer, sample buffer and broad multi-color pre-stained protein standard were purchased from GenScript Biochemical Technology Co., ltd. (Nanjing…	Get A Quote

摘要

In this study, soy protein isolate (SPI) was treated by modified atmosphere packaging (MAP) assisted dielectric barrier discharge (DBD) cold plasma (CP) to improve its functional properties. For this reason, SPI powders were treated with DBD-CP at the oxygen ratio of 20?%, 30?%, 40?%, 50?% and 60?%, respectively. The results showed that with the increase of oxygen content, the structure of SPI was destroyed, protein macromolecule depolymerized. However, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) confirmed that the primary structure of SPI was not disrupted. In addition, when the oxygen content was greater than 40?%, the solubility, water holding capacity, gelling, emulsifying and... More