Preparation and characteristics of high-amylose corn starch/pectin blend microparticles: A technical note

被引：11
作者：
Desai K.G.H. [1 ]
机构：
[1] School of Life Sciences and Biotechnology, Korea University, Seoul-136-701, 1, 5-Ka, Anam-Dong, Sungbuk-ku
来源：
AAPS PharmSciTech | / 6卷 / 2期
关键词：
Colon targeted drug delivery; Controlled release; High-amylose corn starch; Kinetics of release; Microparticles; Pectin;
D O I：
10.1208/pt060230
中图分类号：
学科分类号：
摘要：
The HACS/pectin blend microparticles were prepared by spray-drying technique to obtain effective targeted drug release to the colon. The mean particle size of the microparticles (plain and blend) that were prepared in the present study was between 5.8 and 7.3 μm. The microparticles were positively charged (ζ potential was in the range of 20.3 to 30.8), and the encapsulation efficiency was between 80.1% and 94.7%. The blending of HACS with pectin improved the encapsulation efficiency and decreased the drug dissolution in the gastric condition (pH 1.2) from the pectin-based microparticles. Results of the drug release study indicated that the colonic-controlled drug delivery could be obtained from spray-dried HACS/pectin blend microparticles, and the drug release mechanism was found to be by diffusion or erosion or a combination of both. Copyright ©2003. All Rights Reserved.
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页码：E202 / E208
页数：6
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