Molluscicidal saponins from leaves of hedera canariensis

الملخص EN

Activity-guided fractionation of the methanol extract of Hedera canariensis (var.

Gloire de Maringo) Wild leaves afforded five sapo-nins 1-5.

Chemical and spectral methods (MS, 1HNMR, 13CNMR) showed that they are glycosides of hederagenin and oleanolic acid.

The results showed that 4, 5 exhibited molluscicidal properties, compound 1 was inactive.

Mortality rate of exposed snails increased by increasing plant extract concentration.

Lymnaea cailliaudi was more sensitive to plant extract than Biomphalaria alexandrina.

The histopathological study revealed distinct damage in the structure of the stomach and ovotestis of treated L.

cailliaudi snails.

Saponin cont-ent was determined in term of haemolytic index.