Laboratory Evaluation of the Molluscicidal, Miracidicidal and Cercaricidal Properties of Two Egyptian Plants

Cercaricidal efficacy of plant extract: evidence from the methanolic leaves and bark extracts of <i>Anacardium ocidentale</i> (Linnaeus)

“…The cercaricidal potential for Brevifurcate cercaria was not stable and fluctuated between the leaf and bark. This pattern does not agree with most literature (Perret et al, 1994;Abdel-Gawad et al, 2004;Singaba et al, 2006;Fayez, 2011;Kiros et al, 2014). Possibilities of this fluctuations could be that at some point, the Brevifurcate cercaria became resistant to the plant extract tested and also as a result of the difference in their genetic makeup.…”

Discovery of new triterpene glycosides from Dendrobium officinale with their α-glucosidase and α-amylase inhibitory activity

“…The known saponins were identified to be yemuoside YM14 (8), 20 yemuoside YM11 (9), 20 3- O -α- l -arabinopyranosyl-oleanolic acid 28- O -α- l -rhamnopyranosyl-(1→4)-β- d -glucopyranosyl-(1→6)-β- d -glucopyranosyl ester (10), 21 3- O -α- l -arabinopyranosyl-29-hydroxyoleanolic acid 28- O -α- l -rhamnopyranosyl-(1→4)-β- d -glucopyranosyl-(1→6)-β- d -glucopyranosyl ester (11), 22 3- O -α- l -arabinopyranosyl-serratagenic acid 28- O -β- d -glucopyranosyl-(1→6)-β- d -glucopyranosyl ester (12), 23 3- O -β- d -galactopyranosyl-(1→3)-β- d -glucopyranosyl-(1→2)-α- l -arabinopyranosyl-oleanolic acid 28- O -α- l -rhamnopyranosyl-(1→4)-β- d -glucopyranosyl-(1→6)-β- d -glucopyranosyl ester (13) 24 by comparisons of their physical and NMR data with those reported in the literature. New saponins 1–7 differed from above known ones by either containing addional coumaroyl, caffeoyl, and sugar moiety or loss of methyl group at C-20 in the oleanane-type backbone.…”

Dereplication of Bioactive Agave Saponin Fractions: The Hidden Saponins

“…The HMAI method enabled the identification of two isomeric aglycones in which the only difference was the position of the double bond. The presence of a double bond at C25(27) has only been described for one saponin from the genus Agave, 15 although it is common in saponins from other genera of the Agavaceae family. 16 Dereplication of Sugar Chains.…”

“…The simultaneous dereplication of the fractions makes it easier to identify isomeric saponins with the same characteristics in the UPLC/MS analysis, and in some cases, up to four isomeric saponins were identified (2,4,15,17). Dereplication of the fraction from A. macroacantha in a previous study 10 led to the identification of five main compounds.…”