Paper Title:
Alginate-Chitosan Microspheres for Controlled Release of Tea Polyphenol
  Abstract

Tea polyphenol loaded alginate-chitosan microspheres were prepared by ionic gelation method for controlling tea polyphenol release by using various combinations of chitosn and Ca2+ as cation and alginate as anion.Scanning electron microscopy were used to investigate the surface characteristics of tea polyphenol loaded microspheres. These microencapsulated beads were evaluated as a pH-sensitive system for delivery of tea polyphenol. The main advantage of this system is that all procedures used were performed in aqueous medium which may preserve the tea polyphenol bioactivity. At pH7.4, the amounts of tea polyphenol released increased significantly as compared to those released at pH1.2. It is evident that the rate of tea polyphenol release could be controlled by changing the chitosan and the calcium chloride concentrations.

  Info
Periodical
Advanced Materials Research (Volumes 152-153)
Edited by
Zhengyi Jiang, Jingtao Han and Xianghua Liu
Pages
1726-1729
DOI
10.4028/www.scientific.net/AMR.152-153.1726
Citation
A. N. Wang, L. G. Wu, L. L. Jia, X. L. Li, Y. D. Sun, "Alginate-Chitosan Microspheres for Controlled Release of Tea Polyphenol", Advanced Materials Research, Vols. 152-153, pp. 1726-1729, 2011
Online since
October 2010
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Price
$32.00
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