Steroidal constituents of the aerial parts of Dioscorea and Tamus species

In both the stems and leaves of 8 Dioscorea species and one Tamus species examined, β-sitosterol, stigmasterol and cholesterol were detected, the sterol yield always being higher in the leaves than the stem. With the exception of D. batatas and D. cotinifolia, which were sapogenin free, diosgenin wa...

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Bibliographic Details
Published inPhytochemistry (Oxford) Vol. 7; no. 3; pp. 453 - 458
Main Authors Blunden, Gerald, Briggs, Colin J., Hardman, Roland
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.1968
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Summary:In both the stems and leaves of 8 Dioscorea species and one Tamus species examined, β-sitosterol, stigmasterol and cholesterol were detected, the sterol yield always being higher in the leaves than the stem. With the exception of D. batatas and D. cotinifolia, which were sapogenin free, diosgenin was detected in the stems and leaves of all the species examined. Yamogenin was found in both the stems and leaves of D. sylvatica D. deltoidea and T. communis, but was detectable only in the leaves of D. prazeri, D. floribunda and D. belizensis. No yamogenin was detected in D. composita. The total sapogenin yield was from 6 to 40 times greater in leaves than stems.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(00)90887-2