Steam flash explosion pretreatment enhances soybean seed coat phenolic profiles and antioxidant activity

Food Chemistry
Yongsheng ChenDan Tang

Abstract

The resource utilization of soybean seed coats is currently poor. In this study, steam flash explosion (SFE) pretreatment was performed to extract valuable phytochemicals from soybean seed coats. The total content of phytochemicals and the antioxidant activity of extracts from SFE-treated soybean seed coat were systematically evaluated. On the basis of the application value of antioxidant activity, we optimized the process parameters of SFE-pretreated soybean seed coat to maximize the antioxidant activity. Additionally, the subsequently obtained ethyl acetate fraction with the highest antioxidant activity was analysed using HPLC-DAD-Q-Orbitrap HRMS/MS analysis. The results indicated that SFE could enhance the release of both aglycone and acetylglucoside forms of isoflavones from the cellular structure and enhance the antioxidant activity of soybean seed coats. This study provides evidence that SFE is a novel thermal processing technology with high efficiency and low energy consumption that improves the phytochemical composition and bioactivity of soybean seed coats.

Citations

May 14, 2020·Journal of the Science of Food and Agriculture·Anwei ChengFachun Wan
Mar 4, 2021·Journal of Animal Physiology and Animal Nutrition·Ludmila KřížováMária Chrenková

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