天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (Suppl1): 46-50.

• 研究简报 • 上一篇    下一篇

迷迭香叶中鼠尾草酸的纯化及其结构鉴定

夏田娟1,毕良武1,2*,赵振东1,2,邢雅丽1,程贤1   

  1. 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
  • 出版日期:2014-12-30 发布日期:2015-03-04

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

XIA Tian-juan1, BI Liang-wu1,2*, ZHAO Zhen-dong1,2, XING Ya-li1, CHENG Xian1   

  1. 1 Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab for Biomass Chemical Utilization; Key and Open Lab on Forest Chemical Engineering,SFA;Key Lab of Biomass Energy and Material,Jiangsu Province,Nanjing 210042,China; 2 Institute of New Technology of Forestry,CAF,Beijing 100091,China
  • Online:2014-12-30 Published:2015-03-04

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4 mL/min、负载量为0.5 g。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。

关键词: 鼠尾草酸, 两步法纯化, 结构鉴定

Abstract: 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 extraction;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 ≥97% by this method.Meanwhile,through UV,IR,NMR,LC-MS to verify the substance obtained by experiment is carnosic acid.

Key words: carnosic acid, two-step method purification, identification

中图分类号: 

TQ351.0