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