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	Provedor de dados Biol. Res. (2) Autor ADEGBOYE,MF (1) ADELOYE,OA (1) AIYEGORO,AYOBAMI O (1) AKINPELU,DA (1) AKINPELU,DAVID A (1) OKOH,AI (1) OKOH,ANTHONY I (1) Mais... Palavra-chave Killing rate (2) Protein leakage (2) Afzelia africana (1) Antibacteria (1) Antimicrobial activity (1) Garcinia kola (1) MIC (1) Phytochemistry (1) Mais... Tipo do documento Journal article (2) Ano 2009 (1) 2008 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Studies on the biocidal and cell membrane disruption potentials of stem bark extracts of Afzelia africana (Smith) Biol. Res. AKINPELU,DAVID A; AIYEGORO,AYOBAMI O; OKOH,ANTHONY I. We had recently reported antibacterial activity in the crude extract of the stem bark of Afzelia africana (Akinpelu et al., 2008). In this study, we assessed the biocidal and cell membrane disruption potentials of fractions obtained from the crude extract of the plant. The aqueous (AQ) and butanol (BL) fractions exhibited appreciable antibacterial activities against the test bacteria. The minimum inhibitory concentrations of the AQ and BL fractions ranged between 0.313 and 2.5 mg/ml, while their minimum bactericidal concentrations varied between 0.625 and 5.0 mg/ml. Also, the AQ fraction killed about 95.8% of E. coli cells within 105 min at a concentration of 5 mg/ml, while about 99.1% of Bacillus pumilus cells were killed by this fraction at the same... Tipo: Journal article Palavras-chave: Afzelia africana; Antibacteria; Phytochemistry; Killing rate; Protein leakage. Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000300008 Biocidal activity of partially purified fractions from methanolic extract of Garcinia kola (Heckel) seeds on bacterial isolates Biol. Res. AKINPELU,DA; ADEGBOYE,MF; ADELOYE,OA; OKOH,AI. The in vitro antibacterial activity of crude methanolic extract of the seeds of Garcinia kola was investigated. The extracts exhibited antibacterial activities with zones of inhibition ranging from 10 mm to 25 mm. The minimum inhibitory concentration of the diethyl ether fraction was between 0.313 and 5.0 mg/ml, while that of butanol fraction varied from 0.157 to 5.0 mg/ml. The butanol fraction killed about 77% of Bacillus anthracis and 79% of Escherichia coli cells within 120 min at a concentration of 5.0 mg/ml. Protein leakage from the B. anthracis and E. coli cells when exposed to the butanol and diethyl ether fractions was observed. We conclude that Garcinia kola seed extract has a broad spectrum antibacterial activity, with the butanol and diethyl... Tipo: Journal article Palavras-chave: Garcinia kola; Antimicrobial activity; MIC; Killing rate; Protein leakage. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000300005 Registros recuperados: 2 Primeira ... 1 ... Última

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