Molluscicidal Activity of Affinin and Other Isobutylamides from the Asteraceae

Antimutagenic properties of affinin isolated from Heliopsis longipes extract.

CONTEXT Heliopsis longipes (A. Gray) Blake (Asteraceae), commonly known in Mexico as "chilcuage" or "chilcuan", is widely used as an analgesic and anesthetic agent. Affinin, the major metabolite of this plant, and the ethanol extract of the plant have shown antinociceptive properties in mice. H. longipes plant produces a complex mixture of antioxidant chlorophylls and polyamines as well as a nu...

Cichoric Acid and Isobutylamide Content in Echinacea purpurea as Influenced by Flower Developmental Stages

Echinacea purpurea (L.) Moench, Asteraceae, a native of North America is among the most frequently utilized Echinacea spp. for medicinal, cosmetic, and beverage preparations. Most of the echinacea preparations in the industry originate from wild harvesting and few from non-standardized (unregulated) cultivation and harvesting. According to the recent reports (Brevoort 1996), echinacea preparati...

-Molluscicidal Activity of Different Organic Solvent Latex Extracts of Some Common Euphorbiales against Freshwater Harmful Snails

Molluscicidal activity of different organic solvent extracts of latex of Euphorbia pulcherima and Euphorbia hirta (Family-Euphorbiaceae) against two freshwater harmful snails Lymnaea acuminata and Indoplanorbis exustus has been reported. Both the snails are the intermediate hosts of Fasciola hepatica and Fasciola gigantica, which cause endemic fascioliasis in cattle and livestock of Eastern par...

Diacetylenic isobutylamides of Echinacea: synthesis and natural distribution.

The syntheses of three diacetylenic isobutylamides of Echinacea angustifolia have been achieved by direct synthetic routes by way of a common intermediate. The key step is the alkylation of the anion of the silylated diacetylene. We report the presence of all three diacetylenic isobutylamides in six of the nine Echinacea species: E. angustifolia, E. sanguinea, E. simulata, E. tennesseensis, E. ...

Screening of Asteraceae (Compositae) plant extracts for molluscicidal activity.