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茶叶科学 ›› 2006, Vol. 26 ›› Issue (4): 275-279.doi: 10.13305/j.cnki.jts.2006.04.008

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茶多酚微胶囊化的试验研究

孟祥, 李保国   

  1. 上海理工大学低温医学与食品生物技术研究所,上海 200093
  • 收稿日期:2005-03-15 修回日期:2006-09-06 出版日期:2006-12-25 发布日期:2019-09-11
  • 作者简介:孟祥(1983- ),男,安徽滁州人,硕士研究生,从事药物微胶囊化研究。E–mail:mxempty@163.com 电话:010-62103122 邮箱:wzbjb@cast.org.cn 单位主页:http://www.csac.org.cn
  • 基金资助:
    上海市自然科学基金(05ZR14088); 上海市重点学科建设项目(T0503),上海市联盟计划–难题攻关项目

Experimental study on Microencapsulation of Tea Polyphenols

MENG Xiang, LI Bao-guo   

  1. Institute of Food & biological technology, University of Shanghai for science and technology, Shanghai 200093,China
  • Received:2005-03-15 Revised:2006-09-06 Online:2006-12-25 Published:2019-09-11

摘要: 采用喷雾干燥法,以生物可降解高分子材料羟丙基甲基纤维素邻苯二甲酸酯(HPMCP)为骨架材料,对茶多酚进行微胶囊化研究。以微球的包封率作为实验指标,用L9 (34)正交实验设计优化制备茶多酚微球的工艺,得到以下结果:加入少量乳化剂可较大程度提高产品的包封率,十二烷基硫酸钠(SDS)作为乳化剂效果比聚乙烯醇(PVA)好,最佳添加量是芯壁材总重的4%;制备茶多酚缓释微球的最佳条件为:进风温度100℃,进料速度6.25βml/min,芯壁材比为2:1,总固形物含量为3%。采用HPMCP作为壁材,以喷雾干燥法对茶多酚进行微胶囊化是可行的,茶多酚微球有一定的缓释效果。

关键词: 喷雾干燥, 茶多酚, 微球, 羟丙基甲基纤维素邻苯二甲酸酯

Abstract: To explore the new method of preparing slow-releasing microspheres of tea polyphenols, which will be useful for the applications of tea polyphenols. Through spray drying technology, tea polyphenols were microencapsulated by hydroxypropyl methylcellulose phthalate which is a biodegradable material. The microencapsulation process of tea polyphenols was optimized with orthogonal design L9 (34), the retention of tea polyphenols microspheres was used as the index. Results: A little emulsifier could increase the retention greatly , and the efficiency of SDS was better than PVA. The optimized conditions of tea polyphenols microencapsulation were that entrance temperature was 100℃, entrance speed was 6.25βml/min, proportion of tea polyphenols and wall material was 2:1, proportion of all solid maters was 3%. Using Hydroxypropyl methylcellulose phthalate as the wall material is feasible to prepare tea polyphenols microspheres by spray drying technology, and tea polyphenols microspheres had a slow-releasing efficiency.

Key words: spray drying, tea polyphenols, microsphere, hydroxypropyl methylcellulose phthalate

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