Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Ciênc. Tecnol. Aliment. (1) BJM (1) Autor Souza,Simone Machado de (2) Genena,Aziza Kamal (1) Hense,Haiko (1) Smânia Jr.,Artur (1) Smânia Junior,Artur (1) Smânia,Elza F A (1) Valgas,Cleidson (1) Mais... Palavra-chave Antimicrobial activity (2) Agar diffusion (1) Antioxidant activity (1) Bioautographic methods (1) Minimum bactericidal concentration (1) Minimum inhibitory concentration (1) Natural products (1) Rosemary (1) SFE (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2008 (1) 2007 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Screening methods to determine antibacterial activity of natural products BJM Valgas,Cleidson; Souza,Simone Machado de; Smânia,Elza F A; Smânia Jr.,Artur. The emergence of new infectious diseases, the resurgence of several infections that appeared to have been controlled and the increase in bacterial resistance have created the necessity for studies directed towards the development of new antimicrobials. Considering the failure to acquire new molecules with antimicrobial properties from microorganisms, the optimization for screening methods used for the identification of antimicrobials from other natural sources is of great importance. The objective of this study was to evaluate technical variants used in screening methods to determine antibacterial activity of natural products. Thus, a varied range of natural products of plant, fungi and lichen origin were tested against two bacterial species,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agar diffusion; Antimicrobial activity; Bioautographic methods; Minimum inhibitory concentration; Minimum bactericidal concentration; Natural products. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200034 Rosemary (Rosmarinus officinalis): a study of the composition, antioxidant and antimicrobial activities of extracts obtained with supercritical carbon dioxide Ciênc. Tecnol. Aliment. Genena,Aziza Kamal; Hense,Haiko; Smânia Junior,Artur; Souza,Simone Machado de. Rosemary leaf extracts were obtained by supercritical fluid extraction (SFE) and Soxhlet extraction. Their chemical compositions were evaluated by GC-MS. The extracts were analyzed for compounds reported in the literature as showing antimicrobial and antioxidant activities. The rosemary extracts were tested with regard to antioxidant (DPPH radical scavenging and total phenolic content - Folin-Denis reagent), antibacterial (Gram-positive bacteria - Staphylococcus aureus ATCC 25923 and Bacillus cereus ATCC 11778 - and Gram-negative bacteria - Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853) and antifungal (Candida albicans) activities. Antioxidant, antibacterial and antifungal activities of the SFE extracts were confirmed. Tipo: Info:eu-repo/semantics/article Palavras-chave: Rosemary; SFE; Antioxidant activity; Antimicrobial activity. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612008000200030 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco