壳聚糖在乌龙茶汁澄清中的应用研究  

Application Research about Clarification of Chitosan on Oolong Tea Juice

作　　者：罗志敏[1] 李忠水[2] 林运鸿[2] 陈盛[1] 

机构地区：[1]福建师范大学福清分校,福建福清350300 [2]福建师范大学化学与材料学院,福建福州350108

出　　处：《福建师范大学学报（自然科学版）》2009年第6期61-64,共4页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建师范大学福清分校课题(KY2006006)

摘　　要：研究了壳聚糖对乌龙茶汁的澄清作用,探讨了pH、壳聚糖添加量及澄清时间对澄清效果的影响.结果表明壳聚糖是一种良好的澄清剂,能提高乌龙茶汁的透光度,而且不影响乌龙茶汁的主要风味物质茶多酚、咖啡碱的含量.The clarification effect of chitosan on Oolong tea juice was studied. The influence of pH, the addition of chitosan and the time of clarification on the clarification effect was discussed. The results show that chitosan is a good clarifier. It can improve the transparence of Oolong tea juice without undesirable effect on its main flavour material such as tea polyphenols （TP） and caffeinate.

关 键 词：乌龙茶汁 壳聚糖 澄清 

分 类 号：Q53[生物学—生物化学]