Molluscicidal steroidal saponins from Yucca elephantipes
Zagazig Journal of Pharmaceutical Sciences. 2001; 10 (1): 41-48
in English
| IMEMR
| ID: emr-58546
ABSTRACT
Three spirostanol and two furostanol saponins have been isolated from the methanol extract of the leaves of Yucca elephantipes. The structures of these saponins were established as 3-O-beta-D-xylopyranosyl [1->2] [-beta-D-glucopyranosyl- [1->3]]- beta-D-glucopyranoside yamogenin [I], 3-O-beta-D-xylopyranosyl- [1->2] [beta-D-glucopyranosyl- [1->3]], 26-beta-D- glncopyranoside [25 S]- furost-5-ene-3,22,26-triol [II], 3-O-alpha-L- rhamnopyranosyl [1->2]- [beta-D-xylopyranosyl- [1->3]]- beta-D-glucopyranosyl- [1->4]-beta-D-galactopyranoside gitogenin [III], 3-O-beta-D-xylopyranosyl- [1-> 3]-[beta-D-glucopyranosyl- [1->2]- beta-D-glucopyranosyl- [1->4]- beta-D-galactopyranoside gitogenin [IV], and 26-O-beta-D-glucopyranosyl-22-O-methyl [25R]-5-furostan- 2,3,26-tetrol-3-O- [alpha-L-rhamnopyranosyl- [1->3]]- beta-D-glucopyranosyl- [1->2]- beta-D-glucopyranosyl [1->4]- beta-D-galactopyranoside [V]. Saponins I, III and IV showed high molluscicidal activities against Biomphalaria alexandrina snails after 24 hours exposure [LC90 = 4,9 and 7 ppm] whereas saponins II and V were inactive up to 50 ppm
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Saponins
/
Snails
/
Biomphalaria
/
Plant Extracts
/
Plant Leaves
/
Molluscacides
Language:
English
Journal:
Zagazig J. Pharm. Sci.
Year:
2001
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