蓝莓叶总黄酮的提取及其定性分析

蓝莓叶总黄酮的提取及其定性分析

李颖畅1,吕艳芳2

(1.渤海大学化学化工与食品安全学院,辽宁锦州121013;

2.辽宁省高校食品质量安全与功能食品研究重点实验室,辽宁锦州121013)

摘要:以蓝莓叶为原料,采用溶剂法对蓝莓叶总黄酮进行提取和定性分析。比较不同溶剂对蓝莓叶总黄酮的提取效果,确定乙醇为最佳提取溶剂。考察了乙醇浓度、料液比、浸提时间、浸提温度对蓝莓叶总黄酮提取的影响,确定乙醇提取蓝莓叶总黄酮的最佳提取工艺参数:乙醇体积分数为70%,料液比为1∶20(g/mL ),浸提时间为120min ,浸提温度为70℃。在此条件下进行提取,蓝莓叶黄酮提取率为6.95%。通过颜色反应和紫外-可见光谱确定蓝莓叶提取物为黄酮类物质。

关键词:蓝莓叶;总黄酮;溶剂法;提取;定性分析

中图分类号:TS207.3文献标识码:A 文章编号:1674-506X (2012)04-0032-0005

The Extraction and Qualitative Analysis of Total Flavoniods

from Blueberry Leaves

LI Ying-chang ,LV Yan-fang

(1.College of Chemistry ,Chemical Engineering and Food Safety ,Bohai University ,Jinzhou 121013,China ;

2.Liaoning Province Key Laboratory of of Functional Food ,Food Quality and Safety ,Jizhou 121013,China )

Abstract :Solvent extraction and qualitative analysis of total flavoniods from blueberry leaves were studied.Ethanol was the most selective for extracting total flavoniods from blueberry leaves using different solvent.The effects of dif 鄄ferent experimental conditions ,such as ethanol concentration ,material to liquid ratio ,extraction time and extraction temperature ,on the yield of total flavoniods were investigated.The results showed that optimum conditiuons were ethanol concentration of 70%,ratio of raw material to liquid of 1∶20(g/mL ),extration time of 120min and extraction temperature of 70℃.Under these conditions ,a maximum yield of total flavonoids was 6.95%.Extractions of blueberry leaves belong to flavoniods by color reaction and absorption spectrum.

Key words :blueberry leaves ;total flavoniods ;solvent method ;extraction ;qualitative analysis

doi :10.3969/j.issn.1674-506X.2012.04-009

蓝莓(Blueberry ),又称越橘、蓝浆果,乌饭树,属

杜鹃花科(Ericaceae )越橘属(Vaccinium.spp )多年生

落叶或常绿灌木。蓝莓作为一种药食两用植物,蓝莓

叶具有利尿、消炎、解毒之功效,并可用于风湿、痛风

等[1]。蓝莓叶中含有粗蛋白、粗纤维、脂肪酸、甾醇、

萜类、矿质元素、氨基酸、有机酸、维生素、糖类和大

量黄酮类化合物。在中国,蓝莓叶汁作为防腐剂用在米饭、蛋糕上已经有几个世纪了[2-3]。Skupie ń等研究表明蓝莓叶提取物能够抑制白血病HL60细胞系的生长,抑制能力大约是草莓和树莓提取物的2倍[4]。王立等研究表明蓝莓叶水提取物和醇提取物具有降血糖作用,蓝莓叶醇提取物降血糖作用是和蓝莓叶中含有大量黄酮化合物分不开的[5]。同时,王立等研究发现乌饭树叶及其提取液对兔眼视网膜电流图有收稿日期:2012-04-23

基金项目:辽宁省教育厅高校重点实验室项目(LS2010003)

作者简介:李颖畅(1973-),女,副教授,博士,研究方向:农产品加工与贮藏,

E-mail:liyingchangsy@https://www.360docs.net/doc/c79746529.html, 第48卷(第4期)Vol.48,No.4

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