Antimicrobial activity and chemical investigation of Brazilian Drosera

Memórias do Instituto Oswaldo Cruz

Dalva Trevisan Ferreira²  César Cornélio Andrei²  Halha Ostrensky Saridakis¹  Terezinha De Jesus Faria²  Elisângela Vinhato²  Kátia Eliane Carvalho²  Juliana Feijó Souza Daniel²  Sílvio Luiz Machado²  Dennis Panayotis Saridakis²  Raimundo Braz-filho¹ 

[1] ,Universidade Estadual de Londrina Centro de Ciências Exatas Departamento de QuímicaLondrina PR ,Brasil

关键词: Drosera species;    Droseraceae;    antimicrobial activity;    plumbagin;    aliphatic compounds;   

DOI  :  10.1590/S0074-02762004000700016

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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