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	Provedor de dados BJM (1) Autor Martins,Meire Lelis Leal (1) Teodoro,Carlos Eduardo de Souza (1) Palavra-chave Alpha-amylase (1) Bacillus sp (1) Thermophilic bacterium (1) Thermostable enzymes (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2000 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Culture conditions for the production of thermostable amylase by Bacillus sp BJM Teodoro,Carlos Eduardo de Souza; Martins,Meire Lelis Leal. Studies on the alpha-amylase production were carried out with a bacterial strain isolated from a soil sample. The cells were cultivated in a mineral medium containing soluble starch as sole carbon source. The addition of calcium (10 mM) or peptone (1%) and yeast extract (0.5%) to the mineral medium shortened the lag period and improved the growth and alpha-amylase synthesis. The addition of glucose to the culture diminished greatly the synthesis of alpha-amylase, demonstrating that a classical glucose effect is operative in this organism. The optimum temperature and initial medium pH for amylase synthesis by the organism were 50°C and 7.0 respectively. The optimal pH and temperature for activity were 6.0 and 50°C respectively. The enzyme extract retained... Tipo: Info:eu-repo/semantics/article Palavras-chave: Alpha-amylase; Thermophilic bacterium; Thermostable enzymes; Bacillus sp. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400011 Registros recuperados: 1 Primeira ... 1 ... Última

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