n.三萜烯

Limonoids are a group of highly oxygenated,tetracyclic triterpene secondary metabolites derivatives. 柠檬苦素类似物是一类高度氧化的四环三萜类植物次生代谢物质。

A slow-release matrix process ensures a full 10 hours of release, yielding 2 mg of triterpene glycosides. 一个缓慢释放矩阵程序确保10个小时的充分释放，收益率为2毫克的三萜甙。

Objective: To establish a method for HPLC fingerprint determination of the triterpene acids in Poria cocos. 目的:建立茯苓中三萜酸类成分HPLC指纹图谱的测试方法。

Abstract Objective: To optimize the extraction process of the total triterpene of Centella asiatica from Centella asiatica (L.) Urb. 摘 要 目的：采用正交实验优化从积雪草中提取积雪草总苷的工艺。

The sterols, triterpene alcohols and 4-methylsterols from the unsaponifiables in safflower seed oil were separated and analysed by HPLC, GLC and GS-MS. 采用高效液相色谱、气相色谱及气-质联用方法分离和测试红花籽油不皂化物成分，结果表明，红花籽油不皂化物主要成分为甾醇、三萜醇和4-甲基甾醇等。