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迷迭香叶中鼠尾草酸的纯化及其结构鉴定    

Study on Two-step Method Purification and Structure Identification of Carnosic Acid from Rosemary Leaves

文献类型:期刊文献

中文题名:迷迭香叶中鼠尾草酸的纯化及其结构鉴定

英文题名:Study on Two-step Method Purification and Structure Identification of Carnosic Acid from Rosemary Leaves

作者:夏田娟[1] 毕良斌[1,2] 赵振东[1,2] 邢雅丽[1] 程贤[1]

第一作者:夏田娟

机构:[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室,南京210042;[2]中国林业科学研究院林业新技术研究所,北京100091

年份:2014

卷号:26

期号:A01

起止页码:46-50

中文期刊名:天然产物研究与开发

外文期刊名:Natural Product Research and Development

收录:CSTPCD;;北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;

基金:引进国际先进林业科学技术项目(2011-4-01)

语种:中文

中文关键词:鼠尾草酸;两步法纯化;结构鉴定

外文关键词:carnosic acid; two-step method purification ;identification

分类号:TQ351.0

摘要:以迷迭香叶子为原料,采用两步法分离纯化鼠尾草酸,第一步:迷迭香叶经超声辅助乙醇提取,得到迷迭香提取物;第二步:迷迭香提取物经硅胶柱层析,得到鼠尾草酸纯品。单因素试验的结果表明:第二步操作的合理条件为:200-300目硅胶、洗脱剂为乙酸乙酯:石油醚(4:13,v/v)、洗脱剂流速4mL/min、负载量为0.5g。通过此种方法得到的鼠尾草酸纯度≥97%。同时,对实验所得物质进行紫外、红外、核磁、质谱验证,证明所得物质为鼠尾草酸。
The two-step method to get carnosic acid from rosemary leaves was employed. The first step was getting rosemary extracts from rosemary leaves by ultrasound-assisted ethanol extractian;the second step was to get purified carnosic acid from rosemary extracts by silica gel column chromatography. Results of single factor experiments showed that:the reasonable conditions of silica gel column chromatography were 200-300 mesh silica gel ,the eluent ethyl acetate:petroleum ether(4:13 ,v/v) ,the flow rate 4mL/min and 0.5 g solid loaded. The purity of carnosic acid was 397% by this method. Meanwhile,through UV, IR, NMR, LC-MS to verify the substance obtained by experiment is carnosic acid.

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