食品科学 ›› 2007, Vol. 28 ›› Issue (7): 442-445.

• 分析检测 • 上一篇    下一篇

雪胆甲素的提取与确证

 吕世明, 陈杖榴, 陈建新, 邱电, 李春梅   

  1. 华南农业大学兽医学院; 华南农业大学兽医学院 广东广州510642贵州大学动物科学学院; 贵州贵阳550025; 广东广州510642;
  • 出版日期:2007-07-15 发布日期:2011-10-24

Extraction and Identification of Dihydrocucurbitacin F-25-O-acetate

 吕Shi-Ming , CHEN  Zhang-Liu, CHEN  Jian-Xin, QIU  Dian, LI  Chun-Mei   

  1. 1.College of Veterinary, South China Agricultural University, Guangzhou 510642 China; 2.College of Animal Science, Guizhou University, Guiyang 550025, China
  • Online:2007-07-15 Published:2011-10-24

摘要: 应用乙醇提取、乙酸乙酯纯化、丙酮沉淀的方法,从大籽雪胆中提取到结晶物,经HPLC和MS检测,并对其准分子离子进行ESI碰撞诱导裂解规律的分析,确证为雪胆甲素,其含量为95.1%。

关键词: 雪胆甲素, 提取, 结晶, HPLC, MS

Abstract: Followed the process of alcoholic extraction, purified with ethyl acetate and precipitation in acetone, a crystal was isolated from Henasleya sinesis Cogn. After detected by HPLC and MS and analyzed fragmentate pathway of its quasi-molecular ion under induced ESI collision, Cucurbitacin IIa (Dihydrocucurbitacin F-25-O-acetate) was identified as the main constituent (its content was 95.1%) of the crystal.

Key words: Cucurbitacin IIa, extraction, crystallization, HPLC MS