One-Step Generation of O/W/O Double Pickering Emulsions Utilizing Biocompatible Gliadin/Ethyl Cellulose Complex Particles as the Exclusive Stabilizer

文献类型： 外文期刊

第一作者： Zhou, Fu-Zhen

作者： Zhou, Fu-Zhen;Yu, Xin-Hao;Yang, Xiao-Quan;Yin, Shou-Wei;Zhou, Fu-Zhen;Xie, Li-Hua;Yin, Shou-Wei

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关键词： Pickering emulsions; gliadin; ethyl cellulose; O; W; one-step

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2023 年 71 卷 32 期

页码：

收录情况： SCI

摘要： Double emulsions hold great potential for various applicationsdue to their compartmentalized internal structures. However, achievingtheir long-term physical stability remains a challenging task. Here,we present a simple one-step method for producing stable oil-in-water-in-oil(O/W/O) double emulsions using biocompatible gliadin/ethyl cellulosecomplex particles as the sole stabilizer. The resulting O/W/O systemsserve as effective platforms for encapsulating enzymes and as templatesfor synthesizing porous microspheres. We investigated the impact ofparticle concentration and water fraction on the properties of PickeringO/W/O emulsions. Our results demonstrate that the number and volumeof inner oil droplets increased proportionally with both the waterfraction and particle concentration after a 60-day storage period.Moreover, the catalytic reaction rate of the encapsulated lipase withinthe double emulsion exhibited a significant acceleration, achievinga substrate conversion of 80.9% within 15 min. Remarkably, the encapsulatedenzyme showed excellent recyclability, enabling up to 10 cycles ofreuse. Additionally, by utilizing the O/W/O systems as templates,we successfully obtained porous microspheres whose size can be controlledby the outer water droplet. These findings have significant implicationsfor the future design of Pickering complex emulsion-based systems,opening avenues for extensive applications in pharmaceuticals, food,cosmetics, material synthesis, and (bio)catalysis.

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