High pressure induced in situ orderly encapsulation of apoferritin and its application in protecting non-acylated anthocyanin
文献类型: 外文期刊
作者: Zimeng Lian;Peiqing Yang;Jing Zhao;Xiaojun Liao;Zhenzhen Xu
作者机构:
关键词: Cyanidin 3-β-D-glucoside;Encapsulation;Ferritin;High pressure processing;In situ
期刊名称: Food Research International
ISSN: 0963-9969
年卷期: 2025 年 211 卷
页码:
收录情况: SCIE(2025版) ; ; EI(2025版)
摘要: Anthocyanins are important natural plant pigments with many physiological activities. However, because of their highly reactive nature, anthocyanins are unstable, a new approach was established in this study to encapsulate cyanidin 3-β-D-glucoside (C3G) into the inner cavity of recombinant H-2 of soybean seed apoferritin (rH-2) using high pressure processing (HPP) to improve its stability. At the optimal conditions (500 MPa/20 min, C3G/rH-2 mass ratio of 1 to 1), 15 C3G molecules could be encapsulated by per protein cage, which is comparable with pH shift method with stirring, and much higher than urea method. Moreover, the antioxidant capacity of C3G was improved by rH-2 and such interaction and encapsulation increased the stability of C3G at different temperatures and against metal ions. Multi-spectroscopy methods and molecular dynamics simulation revealed that HPP induced significant conformational changes in ferritin, disturbing the highly ordered α-helix structure and increasing the overall flexibility, which allowed the diffusion of C3G into the nanocage via emerging gaps. Furthermore, HPP encapsulation was applied in C3G enriched plant-based beverage and pudding, showing high retention of C3G. The findings of this study suggest that HPP encapsulation is a novel and green approach for in situ orderly encapsulation of heat-sensitive bioactive hydrophilic phytochemicals. Moreover, this approach has been successfully used for non-acylated anthocyanins stabilization in the real plant-based foods for the first time.
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