Abstract
The anthelminthic efficacy in vitro of the aqueous extract of Genipa americana L. leaves was evaluated at final concentrations of 20, 30, 50, 75 and 100 mg (dry matter)/mL through egg hatching inhibition (EHI) tests and quantitative cultures. The observed lethal concentration LC90 values for hatching and L3 development inhibition were 79.8 and 28.7 mg/mL, respectively. The extract was more effective in larval development inhibition (LDI) than in hatching inhibition. Phytochemical analysis revealed tannins and flavonoids in the extract. The utilisation of G. americana as an anthelminthic may represent a viable alternative to synthetic products, although further studies are needed to verify its in vivo efficacy and to assess its toxicity in sheep.
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