Abstract:The objective of this work was to test the bioactivity of the different extracts and fractions of the leaves of Plectranthus grandis and to determine their lethal concentrations on Biomphalaria glabrata. For the bioassays, seven crude extracts obtained in soxhlet extractor with organic solvents and five fractions were used by flash filtration chromatography. The bioassays were performed in 200mL glass and 24-well plates, using 1674 mollusks in the bioassays. The results showed that the 500mg/L beaker tests obt… Show more
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