Larvicidal activity of tannins isolated of Magonia pubescens St. Hil. (Sapindaceae) against Aedes aegypti (Diptera, Culicidae)

Revista da Sociedade Brasileira de Medicina Tropical

Elias, Carmeci Natalina¹  Silva, Heloísa Helena Garcia da¹  Silva, Ionizete Garcia da¹  Santos, Regina Maria Geris dos¹  Universidade Federal de São Carlos, São Carlos¹  Universidade Federal de Goiás, Goiânia¹  Rodrigues Filho, Edson¹ 

关键词: Tannins;    Larvicidal;    Magonia pubescens;    Aedes aegypti;   

DOI  :  10.1590/S0037-86822004000500005

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Medicina Tropical

【 摘 要 】

Phytochemical study of the larvicidal fractions wich were carried out for the first time, isolated of the Magonia pubescens, monitored by the study of efficacy against the 3rd larval instar of Aedes aegypti, in the search of alternatives for the control of that mosquito and to obtain structures susceptible to chemical improving of the activity for the synthetic via of other deriveds. The fractions with biological activity were monitored chemically through chromatography of thin layer, using as revealing a solution acid of vanillin, analyzed by nuclear magnetic resonance of hydrogen and spectrometry of masses. The bioassays with the fractions were accomplished wit five replications, controlled at the temperature of 28±1ºC, 80±5% of relative humidity and 12 h light. The found lethal concentrations of the fraction that it presented the largest potential larvicidal, MP-9, LC50 and LC90, were of 3,1 and 36,6ppm, respectively. All the experiments were accompanied by a control series, containing the same number of larvae.

【 授权许可】

Unknown