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BIBTEX RIS

Antimicrobial activity and chemical investigation of Brazilian Drosera

2004; Instituto Oswaldo Cruz, Ministério da Saúde; Volume: 99; Issue: 7 Linguagem: Inglês

10.1590/s0074-02762004000700016

ISSN

1678-8060

Autores

Dalva Trevisan Ferreira, César C. Andrei, Halha Ostrensky Saridakis, Terezinha de Jesus Faria, Elisângela Vinhato, Kátia Eliane Carvalho, Juliana F. S. Daniel, Sílvio Luiz Machado, Dennis Panayotis Saridakis, Raimundo Braz‐Filho,

Tópico(s)

Essential Oils and Antimicrobial Activity

Resumo

The antimicrobial activity of three different extracts (hexanic, ethyl acetate, methanol) obtained from Brazilian Drosera species (D. communis, D. montana var. montana, D. brevifolia, D. villosa var. graomogolensis, D. villosa var. villosa, Drosera sp. 1, and Drosera sp. 2 ) were tested against Staphylococcus aureus (ATCC 25923), Enterococcus faecium (ATCC23212), Pseudomonas aeruginosa (ATCC27853), Escherichia coli (ATCC11229), Salmonella choleraesuis (ATCC10708), Klebsiella pneumoniae (ATCC13883), and Candida albicans (a human isolate). Better antimicrobial activity was observed with D. communis and D. montana var. montana ethyl acetate extracts. Phytochemical analyses from D. communis, D. montana var. montana and D. brevifolia yielded 5-hydroxy-2-methyl-1,4-naphthoquinone (plumbagin); long chain aliphatic hydrocarbons were isolated from D. communis and from D. villosa var. villosa, a mixture of long chain aliphatic alcohols and carboxylic acids, was isolated from D. communis and 3b-O-acetylaleuritolic acid from D. villosa var. villosa.

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