Wilkins A L, Miles C O, De Kock W T, Erasmus G L, Basson A T, Kellerman T S
Chemistry Department, University of Waikato, Hamilton, New Zealand.
Onderstepoort J Vet Res. 1996 Dec;63(4):327-34.
Saponin C, a beta-glucosidase-treated saponin isolated from ethanol-water extracts of a South African collection of Tribulus terrestris, was shown by one- and two-dimensional NMR spectroscopy to be ruscogenin 1-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-6)-acetylglucopyranoside++ +. GC-MS analysis of the hydrolysed ethanol-water (4:1) extracts of T.terrestris specimens from two of four sites, revealed high levels of ruscogenin and potentially lithogenic diosgenin saponins. Specimens from two other sites contained non-lithogenic saponins derived predominantly from tigogenin, neotigogenin, gitogenin and neo-gitogenin.
皂甙C是从南非蒺藜乙醇 - 水提取物中分离得到的一种经β - 葡萄糖苷酶处理的皂甙，通过一维和二维核磁共振光谱分析表明其为鲁斯可皂苷元1 - O-α - L - 鼠李吡喃糖基 -（1→2）-β - D -（6）- 乙酰葡萄糖吡喃糖苷。对来自四个地点中两个地点的蒺藜标本的水解乙醇 - 水（4:1）提取物进行气相色谱 - 质谱分析，结果显示鲁斯可皂苷元和潜在的致石性薯蓣皂苷元皂甙含量很高。另外两个地点的标本含有主要来源于替告皂苷元、新替告皂苷元、吉托皂苷元和新吉托皂苷元的非致石性皂甙。
