微波法提取北冬虫夏草中黄酮类化合物  

Microwave-assisted Extraction of Flavonoids from Cordyceps militaris

作　　者：刘春泉[1] 韩晨[1] 李大婧[1] 宋江峰[1] 贺稚非[2] 

机构地区：[1]江苏省农业科学院原子能农业利用研究所,江苏南京210014 [2]西南大学食品科学学院,重庆400716

出　　处：《江苏农业学报》2007年第4期356-359,共4页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省农业科学院基金项目(6110537)

摘　　要：研究了微波法从北冬虫夏草中提取黄酮类化合物的工艺。分别考察了原料颗粒度、溶剂组成、提取时间、提取次数、液固比等因素对提取总黄酮产量的影响。确定适宜工艺参数为:原料颗粒度为60目,以水作为提取溶剂,微波功率为120 W,提取时间累计为10 min,分3次提取,提取液固比为25 ml∶1 g。在此工艺参数下,黄酮产量可达到14.69 mg/g。Flavonoids are well known for their anti-inflammatory, antiviral, anti-allergic and anticarcinogenic effects on health. Cordyceps militaris, a parasitic ascomycetous fungus, has been used in Chinese medicine to treat numerous illnesses. A technology using microwave energy as an assistant during extraction of flavonoids from Cordyceps militaris was developed. 14.69 mg flavonoids could be extracted from 1 g fruit body of Cordyceps miliaris when the technological parameters were set as： 1 g material through 60-mesh sieve,water as solvent,microwave power of 120 W,toal 10 min of duration for 3- times extractions ,and 25 ml ： 1 g of extractant（ ethanol ）to fruit body of Cordyceps militaris.

关 键 词：黄酮类化合物 北冬虫夏草 微波法 提取 

分 类 号：R282.710[医药卫生—中药学]