塔拉豆荚壳中单宁的提取-微波辅助萃取法  

Extraction of Tara Tannin by Microwave Assisted Method

作　　者：包松莲[1] 李志国[1] 张建云[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,云南昆明650224

出　　处：《氨基酸和生物资源》2010年第2期38-40,48,共4页Amino Acids & Biotic Resources

基　　金：林业公益性行业科研专项(200704018);中国林科院资源昆虫研究所基本科研业务费专项(Riri200704M);国家林业局"948"项目(2006-4-100)

摘　　要：利用微波辅助萃取技术对塔拉单宁进行提取,通过不同的起始温度、加蒸馏水量、提取次数、功率大小等实验并用1%的FeCl3溶液检测提取效果,确定较佳的提取温度、次数、加蒸馏水量和微波辅助萃取仪的功率等因素.结果表明,微波提取塔拉单宁的最佳提取条件为：每次提取加水150～200 mL,微波功率400 w,60℃提取20 min,反复提取4次;再升温至70℃提取20 min 2次,即可提取完全.原料中的单宁含量微波浸提比水浴锅浸提稍高.因此认为用此提取方法可替代水浴浸提法.Microwave assisted extraction for Tara tannin was studied. Different temperature and extracting time, the quantity of distilled water and power of microwave were tested. FeCl3 solution of 1% was used for detection. The best extracting conditions were： distilled water of 150 -200 mL each time, the power of microwave of 400W, temperature at 60℃ and extracted for 20 min, repeated four times, then raised the temperature to 70℃, extracted for 20 min of two times. The content of Tara tannin was extracted completely, and the content by microwave extraction was higher than by water bath kettle.

关 键 词：微波萃取 塔拉 单宁 

分 类 号：S789.5[农业科学—林学]