延边地区多种野生植物缩合单宁的含量及提取条件的优化  

Condensed tannins content and optimization of the extraction conditions of wild plants in Yanbian region

作　　者：李林株[1] 李成云[1] 张帆[1] 吕忠蕾[1] 

机构地区：[1]延边大学农学院,吉林延吉133002

出　　处：《草业科学》2014年第5期977-981,共5页Pratacultural Science

基　　金：国家自然基金--不同分子量缩合单宁对延边黄牛蛋白质代谢及瘤胃细菌的调控机理研究(31160464)

摘　　要：本研究测定了延边地区多种含单宁野生植物中不同种类缩合单宁的含量,然后以山野豌豆（Vicia amoena）和细叶胡枝子（Lespedeza hedysaroides）叶片为原材料,优化野生植物中缩合单宁的提取工艺。结果表明,不同植物之间缩合单宁含量不同,平均含量为3.4～88.6g·kg^-1。提取山野豌豆叶片中缩合单宁的最适料液比为1∶40,萃取液用量为2∶2;细叶胡枝子的最适料液比为1∶30,萃取液用量为2∶3,冷浸提时间均为4h。In this experiment, the contents of various types condensed tannins （CTs） in different Yanbian region wild plants were evaluated. Then the leaves of （Vicia amoena and Lespedeza hedysaroides） were further analyzed and the extraction progress of CTs from wild plants was optimized. The results showed that the CTs contents within different types plants were different and the average content ranged from 3.4 to 88. 6 g · kg^-1. When the solid to liquid ratio and extractive liquid ratio in extraction progress in V. amoena was adjusted to 1：40 and 2： 2（L. hedysaroides was 1 ： 30 and 2 ： 3）, the optimum extraction time was 4 hours.

关 键 词：牧草 缩合单宁 提取条件 优化 

分 类 号：TQ28[化学工程—有机化工]