Zein-based microcapsule for vanillin sustained release,Journal of Applied Polymer Science

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Zein-based microcapsule for vanillin sustained release
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-06-03 , DOI: 10.1002/app.51217
Qunna Xu _{1,

2} , Ruijie Qiu _{1,

2} , Zhongxue Bai _{1,

2} , Jianzhong Ma _{1,

2} , Qianqian Fan _{1,

2} , Yun Li ₃ , Siddiqui Taha ₁ , Zaki Ramzan ₄ , Jiaojiao Li _{1,

2}

Affiliation

Currently, microcapsules are attracting great attention and becoming more and more widely used in sustained release system. In this research, zein-based microcapsules were prepared by anti-solvent precipitation technology and spray drying. The properties of as-prepared microcapsules were optimized by adjusting the reaction conditions and parameters such as the mass ratio of zein to vanillin, the drying temperature and whether polyethylene glycol was added or not. Meanwhile, the morphologies, chemical structures, and application performances of microcapsules were characterized and determined by SEM, FT-IR, TG, and so on. The results showed that the morphology of as-obtained microcapsules was a regular spherical shape with no cracks when the mass ratio of zein to vanillin was 1:1, the inlet temperature was 120 C and the polyethylene glycol was introduced. Meanwhile, it was also proved that the polyethylene glycol has a positive effect on the encapsulation efficiency in microcapsules. Moreover, zein microcapsules can effectively improve the thermal stability and release behavior of vanillin, meanwhile the exist of polyethylene glycol can further improve the properties of zein microcapsules. This research provided guidelines for the study of microcapsules.

中文翻译：

用于香兰素缓释的玉米醇溶蛋白微胶囊

目前，微胶囊正引起人们的广泛关注，并在缓释系统中得到越来越广泛的应用。本研究采用抗溶剂沉淀技术和喷雾干燥技术制备玉米醇溶蛋白基微胶囊。通过调节玉米醇溶蛋白与香草醛的质量比、干燥温度以及是否加入聚乙二醇等反应条件和参数来优化制备的微胶囊的性能。同时，通过SEM、FT-IR、TG等对微胶囊的形貌、化学结构和应用性能进行了表征和测定。结果表明,当玉米醇溶蛋白与香兰素的质量比为1:1时,所获得的微胶囊形貌为规则的球形,无裂纹, 入口温度为120°C并引入聚乙二醇。同时，也证明了聚乙二醇对微胶囊的包封率有积极的影响。此外，玉米醇溶蛋白微胶囊可有效改善香兰素的热稳定性和释放行为，同时聚乙二醇的存在可进一步改善玉米醇溶蛋白微胶囊的性能。该研究为微胶囊的研究提供了指导。

更新日期：2021-07-23

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