Screening of plants found in the State of Amazonas, Brazil for activity against Aedes aegypti larvae Triagem de plantas encontradas no Estado do Amazonas para atividade larvicida contra Aedes aegypti

Ethanol, methanol and water extracts representing mostly native plant species found in the Amazon region were prepared, respectively, by maceration, continuous liquid-solid extraction and infusion, followed by evaporation and freeze-drying. The freeze-dried extracts were tested for lethality toward...

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Veröffentlicht in:Acta amazonica 2004-01, Vol.34 (1), p.97-105
Hauptverfasser: Adrian Martin Pohlit, Etienne Louis Jacques Quinard, Sergio Massayoshi Nunomura, Wanderli Pedro Tadei, Ari de Freitas Hidalgo, Ana Cristina da Silva Pinto, Elba Vieira Mustafa dos Santos, Sabrina Kelly Reis de Morais, Rita De Cássia Guedes Saraiva, Lin Chau Ming, Alexandre Mascarenhas Alecrim, Alfeu de Barros Ferraz, Andreza Cristiana da Silva Pedroso, Elisangela Vieira Diniz, Ellen Kathryn Finney, Erika de Oliveira Gomes, Hercules Bezerra Dias, Katiuscia dos Santos de Souza, Laura Cristina Pereira de Oliveira, Luciana de Castro Don, Maria Mireide Andrade Queiroz, Marycleuma Campos Henrique, Mirian dos Santos, Orivaldo da Silva Lacerda Júnior, Patrícia de Souza Pinto, Suniá Gomes Silva, Yara Rodrigues Graça
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Zusammenfassung:Ethanol, methanol and water extracts representing mostly native plant species found in the Amazon region were prepared, respectively, by maceration, continuous liquid-solid extraction and infusion, followed by evaporation and freeze-drying. The freeze-dried extracts were tested for lethality toward Aedes aegypti larvae at test concentrations of 500 mg / mL. In general, methanol extracts exhibited the greatest larvicidal activity. The following 7 methanol extracts of (the parts of) the indicated plant species were the most active, resulting in 100% mortality in A. aegypti larvae: Tapura amazonica Poepp. (root), Piper aduncum L. (leaf and root), P. tuberculatum Jacq. (leaf, fruit and branch). and Simaba polyphylla (Cavalcante) W.W. Thomas (branch).Extratos aquosos, etanólicos e metanólicos, representando principalmente espécies vegetais nativas encontradas na região Amazônica, foram preparados, respectivamente, por infusão, maceração e extração contínua líquido-sólido, seguida de evaporação e liofilização. Os extratos liofilizados foram testados para atividade contra larvas de Aedes aegypti, na concentração única de 500 mg / mL. Os extratos metanólicos foram, em geral, os que apresentaram maior atividade larvicida. Os seguintes 7 extratos metanólicos das (partes das) espécies vegetais indicadas foram os mais ativos, provocando 100% de mortalidade em larvas de A. aegypti: Tapura amazonica Poepp. (raiz), Piper aduncum L. (folha e raiz), P. tuberculatum Jacq. (folha, fruto e galho) e Simaba polyphylla (Cavalcante) W.W. Thomas (galho).
ISSN:0044-5967
DOI:10.1590/S0044-59672004000100012