Emulsion stabilized by pea protein isolate-polylysine complex particles with high ionic strength resistance and their application in active substances protection
Tuowei Li , Yijie Wang , Yue Sun , Ting Li , Weifu Dong
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引用次数: 0
Abstract
Active substances like astaxanthin are highly sensitive to environmental factors such as light, heat, and oxygen, making them prone to losing their activity during storage and use. To effectively protect these bioactive compounds, this study developed a simple method to prepare pea protein isolate-polylysine (PPI-PL) complex particles using electrostatic interactions, hydrophobic interactions, and hydrogen bonding between the two components. The emulsions prepared with these complex particles demonstrated excellent storage stability (up to 30 days), pH stability (acidic, basic, and neutral conditions), and stability under high ionic strength (7000 mM) conditions. Furthermore, the emulsions improved the protection of active substances (such as astaxanthin) against environmental stressors like oxygen and UV light, and also exhibited significant antibacterial activity against E. coli and S. aureus. This approach offers new insights for the development of multifunctional emulsions for use in functional foods and pharmaceuticals.
期刊介绍：
Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena.
The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.
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