文献类型：期刊文献

中文题名：苦丁茶黄酮类化合物的提取与分析

英文题名：Extraction and Analysis of Flavonoids from Kuding Tea

作者：李建法[1];胡六江[1];吕金红[1];唐晶晶[1]

机构：[1]浙江省绍兴文理学院化学系

年份：2005

卷号：25

期号：1

起止页码：31

中文期刊名：浙江林业科技

外文期刊名：Journal of Zhejiang Forestry Science and Technology

收录：北大核心2004、北大核心

语种：中文

中文关键词：苦丁茶;粗壮女贞;大叶冬青;黄酮类化合物;生物活性成分;浓度;含量;溶剂提取;提取效果;分析条件

外文关键词：Kuding tea; flavonoids; extraction; ultraviolet spectrophotometry

中文摘要：采用不同浓度的乙醇溶液提取苦丁茶中的黄酮类化合物,通过提取效果的对比,确定了合理的乙醇浓度为70%～80%.研究表明,与单纯采用溶剂提取相比,采用超声振荡辅助提取对黄酮类化合物的相对提取率影响较小,但是可以缩短提取时间、降低提取温度,有利于提取过程中生物活性成分的保持.与小叶苦丁茶(粗壮女贞)相比,在相同提取和分析条件下,浙江本地产的大叶苦丁茶(大叶冬青)中黄酮类化合物含量较多.

外文摘要：The proper concentration of ethanol solution for extracting flavonoids from Kuding tea should be 70% ~ 80% according to the comparison on extraction performance of different solutions. There was no evident effect of extraction rate of flavonoids by solely solvent extraction and the supersonic-aided, but the extraction temperature and duration could be reduced, which could be favorable for the preservation of bioactive substances. Under the same extraction and analysis conditions, the content of flavonoids in local large-leaved Kuding tea (Ilex latifolia) was higher than that in small-leaved Kuding tea (Ligustrum robustum).