Encapsulation of a Desmodium intortum Protein Isolate Pickering Emulsion of beta-Carotene: Stability, Bioaccesibility and Cytotoxicity

文献类型： 外文期刊

第一作者： Tang, Xue-Mei

作者： Tang, Xue-Mei;Liu, Pan-Dao;Chen, Zhi-Jian;Li, Xin-Yong;Huang, Rui;Liu, Guo-Dao;Dong, Rong-Shu;Tang, Xue-Mei;Chen, Jian

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关键词： Pickering emulsion; beta-carotene; simulated in vitro digestion; bioaccessibility; cytotoxicity

期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）

ISSN：

年卷期： 2022 年 11 卷 7 期

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收录情况： SCI

摘要： Owing to their excellent characteristics, Pickering emulsions have been widely used in the development and the application of new carriers for embedding and for delivering active compounds. In this study, beta-carotene was successfully encapsulated in a Pickering emulsion stabilized using Desmodium intortum protein isolate (DIPI). The results showed that the encapsulation efficiencies of beta-carotene in the control group Tween 20 emulsion (TE) and the DIPI Pickering emulsion (DIPIPE) were 46.7 +/- 2.5% and 97.3 +/- 0.8%, respectively. After storage for 30 days at 25 degrees C and 37 degrees C in a dark environment, approximately 79.4% and 72.1% of beta-carotene in DIPIPE were retained. Compared with TE, DIPIPE can improve the stability of beta-carotene during storage. In vitro digestion experiments showed that the bioaccessibility rate of beta-carotene in DIPIPE was less than that in TE. Cytotoxicity experiments showed that DIPI and beta-carotene micelles within a specific concentration range exerted no toxic effects on 3T3 cells. These results indicate that DIPIPE can be used as a good food-grade carrier for embedding and transporting active substances to broaden the application of the protein-based Pickering emulsion system in the development of functional foods.

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