Potential use of Piper nigrum ethanol extract against pyrethroid-resistant Aedes aegypti larvae.

Rev Soc Bras Med Trop

Núcleo de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ.

Published: February 2008

Fractionation of Piper nigrum ethanol extract, biomonitored by assays on pyrethroid-resistant Aedes aegypti larvae yielded isolation of the larvicidal amides piperolein-A and piperine. Comparing LC50 values, the ethanol extract (0.98 ppm) was the most toxic, followed by piperolein-A (1.46 ppm) and piperine (1.53 ppm).

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http://dx.doi.org/10.1590/s0037-86822007000400006DOI Listing

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