Potential use of Piper nigrum ethanol extract against pyrethroid-resistant Aedes aegypti larvae.
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).
Simas
Naomi Kato
NK
Núcleo de Pesquisas de Produtos Naturais, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ.
Lima
Elisangela da Costa
Eda C
Kuster
Ricardo Machado
RM
Lage
Celso Luiz Salgueiro
CL
de Oliveira Filho
Alfredo Martins
AM
D000330:Aedes; D000818:Animals; D007305:Insecticide Resistance; D007306:Insecticides; D007814:Larva; D029222:Piper nigrum / Q000737:chemistry*; D010936:Plant Extracts; D011722:Pyrethrins
D007306:Insecticides; D010936:Plant Extracts; D011722:Pyrethrins