摘要
通过实验确定紫茎女贞老叶生物类黄酮的提取工艺为:以乙醇浓度60%为溶剂,料液比1∶20,在95℃回流浸提2 h;将提取液浓缩、离心、干燥得黄酮粗粉(得率5.95%,总黄酮含量22.5%)和黄酮浸膏(得率2.37%,总黄酮含量19.6%),可作为天然添加剂广泛应用于食品、药品、化妆品生产。
The extraction technology of flavonoids from Ligustnun purpuracscens Y.C. Yang old leaves was studied. The optimum extraction condition was that taking 60% ethanol as solvent, the ratio of material to solvent 1 ： 20, at 95 ℃ extracting for 2h. Condensed, centrifugated and dried the extracting liquid, flavonoid crude powder （yield 5.95%, flavonoids content 22.5% ） and paste （yield 2.37%, flavonoids content 19.6%） were obtained. They could be used as natural additive to foods, drugs and cosmetics.
出处
《粮油食品科技》
2009年第3期50-51,共2页
Science and Technology of Cereals,Oils and Foods
基金
宜宾学院青年基金(200401013)
四川省教育厅青年基金(2006B078)
教育部外司留基金(2005(55))
关键词
紫茎女贞
苦丁茶
黄酮类化合物
提取
ligustrttm purpurascens y. c. yang
kudingcha
tlavonoids
extraction
