摘要
本文采用热水提取法来获得藤茶中的二氢杨梅素,并通过液相色谱法测定其含量,对比研究一次提取和二级提取,并通过正交试验对二级提取工艺条件进行了优化。结果表明二级提取最佳条件为:提取温度为95℃,提取时间为60min,料液比为1:25,pH为8。此条件下二氢杨梅素提取率为30.81%。
Dihydromyricetin was extracted fi, om ampelopsis by hot-water extraction method and determined by HPLC. A compared study was made between the conventional extraction and secondary extraction of dihydromyricetin. The secondary extraction was optimized by orthogonal test and the best extraction temperature, extraction lime, the ratio of solid-liquid and pH value were 95℃, 60min, 1：25 and 8, respectively. Under these conditions, the extraction yield of dihydromyricetin was 30.81%.
出处
《现代食品科技》
EI
CAS
2009年第8期907-910,共4页
Modern Food Science and Technology
基金
2007国家863计划重点项目(2007AA100405)
2007年粤港关键领域重点突破项目(2007Z1-E6011)
关键词
藤茶
二氢杨梅素
液相色谱
提取工艺
ampelopsis grossedentata
dihydromyricetin
HPLC
aqueous extraction
