摘要
以藤茶为原料,以水为提取剂,对藤茶中的二氢杨梅素进行逆流提取。分别研究了影响二氢杨梅素提取收率的几个因素。研究表明:温度越高越有利于二氢杨梅素的提取,用沸水提取收率最大。料液比为1:10时最有利于二氢杨梅素的自然沉淀。提取时间在60min以前,二氢杨梅素的收率随提取时间的延长而增加;而在60min以后,二氢杨梅素的收率随提取时间的延长而减少。用偏碱性的水进行提取比用中性水和酸性水要好。
Countercurrent extraction was applied to extract dihydromyricetin in Ampelosis grossedentata with water asextracting solvent in this paper. Some factors related to the extract rate of dihydromyricetin are investigated. The results showthat the extract rate is higher when the temperature is higher, the highest extract rate can be obtained if extracting solvent is boilingwater. The amount of sediment is most when the ratio of material to solvent is 1:10. The extract rate of dihydromyricetin increasesuntil the extract time reaches 60min, then the extract rate decreases. The weak alkaline water is preferred than neutral water andacid water.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2004年第11期192-194,共3页
Food Science
