食品科学 ›› 1999, Vol. 20 ›› Issue (12): 25-28.

• 基础研究 • 上一篇    下一篇

果胶酶对茶多酚萃取体系传质效果的影响

 潘丽军, 姜绍通, 江国庭, 郑志   

  1. 合肥工业大学食品工程系
  • 出版日期:1999-12-15 发布日期:2011-12-04

 PAN  Li-Jun, JIANG  Shao-Tong, JIANG  Guo-Ting, ZHENG  Zhi   

  • Online:1999-12-15 Published:2011-12-04

摘要: 应用果胶酶对茶水中的果胶类物质酶解处理后。可显著改善食品抗氧化剂茶多酚萃取体系的茶水的溶液性质,从而成倍增加萃取体系的萃取速率和传质系数,提高茶多酚得率。上升液滴法试验表明,果胶酶对茶水比为1:20的萃取水相作用的最佳条件是作用量0.05%,pH5.6,作用温度45℃,作用时间3h

关键词: 茶多酚, 果胶酶, 萃取速率, 传质系数

Abstract: Adding pectinase to tea water, can markedly’ improve its system characteristic in extracting Tea Polyphenols(TP) from green tea. so as to enhance extraction ratio and mass transfer coefficient. and increase TP yield. Applicationof fluid Globelet,Ascending (FGA) indicated that optimum operation , conditions of adding pectinase to 1:20 teawater’ were:Keeping 0.05%pectinascectillasc addition concentration. adjusting to PH5 .6, and maintaining 3 hours underconstant: temperature of 45 .

Key words: Tea Polyphenols Pectinase Extraction ratio &rsquo, Nass transfer coefficient;