Antimicrobial activity and chemical investigation of Brazilian Drosera

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.

Bibliographic Details

Main Authors:	Ferreira,Dalva Trevisan, Andrei,César Cornélio, Saridakis,Halha Ostrensky, Faria,Terezinha de Jesus, Vinhato,Elisângela, Carvalho,Kátia Eliane, Daniel,Juliana Feijó Souza, Machado,Sílvio Luiz, Saridakis,Dennis Panayotis, Braz-Filho,Raimundo
Format:	Digital revista
Language:	English
Published:	Instituto Oswaldo Cruz, Ministério da Saúde 2004
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762004000700016
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