1. Antimicrobial activity and chemical investigation of Brazilian Drosera
- Author
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Halha Ostrensky Saridakis, Kátia Eliane Carvalho, Raimundo Braz-Filho, Silvio Luiz Machado, Juliana Feijó de Souza Daniel, Dalva Trevisan Ferreira, César Cornélio Andrei, Terezinha de Jesus Faria, Elisângela Vinhato, and Dennis Panayotis Saridakis
- Subjects
Microbiology (medical) ,lcsh:Arctic medicine. Tropical medicine ,Drosera ,lcsh:RC955-962 ,lcsh:QR1-502 ,Ethyl acetate ,Microbial Sensitivity Tests ,Gram-Positive Bacteria ,lcsh:Microbiology ,Drosera species ,chemistry.chemical_compound ,aliphatic compounds ,Botany ,Candida albicans ,Gram-Negative Bacteria ,Droseraceae ,plumbagin ,antimicrobial activity ,biology ,Villosa ,Plant Extracts ,Plumbagin ,Antimicrobial ,biology.organism_classification ,Anti-Bacterial Agents ,stomatognathic diseases ,Phytochemical ,chemistry ,Enterococcus faecium - Abstract
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.
- Published
- 2004