ATIVIDADE LARVICIDA CONTRA AEDES AEGYPTI E AVALIAÇÃO ANTIOXIDANTE, CITOTÓXICA E MICROBIOLÓGICA DO EXTRATO ETANÓLICO BRUTO DE POGOSTEMON CABLIN BENTH

Autores

  • Lizandra Lima Santos
  • Rosany Lopes Martins
  • Heden Robson Monteiro Souza
  • Janaina Corrêa dos Santos
  • Cristine Barbosa Malafaia
  • Cleidjane Gomes Faustino
  • Fernando Antônio de Medeiros
  • Ana Luzia Ferreira Farias
  • Letícia Gomes de Oliveira
  • Edmilson dos Santos Moraes
  • Camila Lima dos Santos
  • Sheylla Susan Moreira da Silva de Almeida

DOI:

https://doi.org/10.56238/bocav25n74-016

Palavras-chave:

Biocida, Patchouli, Lamiaceae, Controle de Vetores, Oriza

Resumo

O presente trabalho teve como objetivo avaliar as atividades larvicida, antioxidante, microbiológica e de citotoxicidade do extrato etanólico bruto das folhas de Pogostemon cablin (Blanco) Benth. A caracterização química foi realizada por meio de reações de coloração e testes específicos para a detecção de classes de metabólitos secundários. A atividade larvicida contra Aedes aegypti foi conduzida de acordo com o protocolo da Organização Mundial da Saúde. A atividade antioxidante foi avaliada pela capacidade sequestradora do radical 2,2-difenil-1-picrilhidrazil (DPPH). Para a avaliação microbiológica, utilizou-se a técnica de diluição em microplacas contra três bactérias, conforme o protocolo do Clinical and Laboratory Standards Institute. P. cablin apresentou como classes de metabólitos secundários: esteroides e triterpenoides, depsídeos e depsidonas, os quais, em sinergia com outras substâncias, potencializaram a ação larvicida da espécie, com CL₅₀ de 63,91 μg·mL⁻¹ em 24 h. Não foi observada atividade antioxidante nas concentrações testadas; entretanto, verificou-se inibição do crescimento bacteriano contra E. coli, com CIM de 31,25 μg·mL⁻¹. O extrato apresentou ação tóxica moderada, com CL₅₀ de 257,93 μg·mL⁻¹. Assim, a espécie P. cablin demonstrou significativo potencial larvicida, ação bacteriostática, ausência de atividade antioxidante e toxicidade moderada.

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2026-01-08

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ATIVIDADE LARVICIDA CONTRA AEDES AEGYPTI E AVALIAÇÃO ANTIOXIDANTE, CITOTÓXICA E MICROBIOLÓGICA DO EXTRATO ETANÓLICO BRUTO DE POGOSTEMON CABLIN BENTH. Boletim de Conjuntura (BOCA), Boa Vista, v. 25, n. 74, p. e8091, 2026. DOI: 10.56238/bocav25n74-016. Disponível em: https://revistaboletimconjuntura.com.br/boca/article/view/8091. Acesso em: 29 jan. 2026.