Photosensitivity in South Africa. IX. Structure elucidation of a beta-glucosidase-treated saponin from Tribulus terrestris, and the identification of saponin chemotypes of South African T. terrestris

Autor:	A L, Wilkins, C O, Miles, W T, De Kock, G L, Erasmus, A T, Basson, T S, Kellerman
Rok vydání:	1996
Předmět:	Plant Poisoning South Africa Magnetic Resonance Spectroscopy Sheep Molecular Structure Animals Sheep Diseases Photosensitivity Disorders Saponins Poaceae
Zdroj:	The Onderstepoort journal of veterinary research. 63(4)
ISSN:	0030-2465
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::7beaeeeb0219f0b8ae86d22c189b3e00 https://pubmed.ncbi.nlm.nih.gov/9173364 Zobrazit plný text záznamu