Ação larvicida de extrato bruto etanólico de magonia pubescens st.hil. (tingui-do-cerrado), sobre o Aedes aegypti (Lin.) em laboratório

Resumo

Biological tests were performed with crude ethanol extract of Magonia pubescens St. Hil., (tingui-do-cerrado) (Sapindaceae) to check Aedes aegypti's action larvicid. The extracts were obtained from each part of the plant: wood's skin, seed's cover and seed, after to have been collected, the material was desiccate in air stove at 40°C, crushed, percolate in ethanol for 10 days, fíltrate in qualitative filter paper, concentrate in rotative evaporator and desiccate in vacuum pistol. After obtainment of crude ethanol extract of each part of the plant, it was dissolved in water with differents concentrations and tested with 4° instar of A.aegypti's larval to determinate DL5Q. This was of 35, 55 and 150 mg of crude ethanol extract/100 ml of water distilled, respectively, for seed, seed's cover and wood's skin. Each experiment was accomplished with 20 flask with capacity 30 ml with one larva in each flask and observed for 24 hours. The larvas were created in biological chamber at 28 ± 1°C , 80 ± 5% of relative humidity and photophase of 12 h. The biological tests were performed in another similar chamber. Among the experiments realized, the crude ethanol extract of the seed and seed's cover showed more effícient larvicids than of wood's skin and fruit's capsule.

Descrição

Palavras-chave

Magonia pubescens, Aedes aegypti, Tingui, Controle, Dengue, Control

Citação

SILVA, Ionizete Garcia da; SANTOS, Adelair Helena dos; FERRI, Pedro Henrique; ALVES, Rosa de Belém das Neves; MELO, Raquel Linhares; PEIXOTO, Luciano; SILVA, Heloísa Helena Garcia da; ELIAS, Carmeci Natalina; ISAC, Eliana; LIRA, Kênia da Silva; CAMARGO, Marlene de Fátima. Ação larvicida de extrato bruto etanólico de magonia pubescens st.hil. (tingui-do-cerrado), sobre o Aedes aegypti (Lin.) em laboratório. Revista de Patologia Tropical, Goiânia, v. 25, n. 1, p. 51-59, jan./jun. 1996. Disponível em: <https://www.revistas.ufg.br/iptsp/article/view/18478/10956>.