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	Provedor de dados BABT (1) BJM (1) Autor Bakri,Yasser (2) Arabi,Mohammed Imad Eddin (1) Jawhar,Mohammed (1) Koreih,Amal (1) Mekaeel,Alaa (1) Palavra-chave Xylanase (2) Aeration (1) Agitation (1) Aspergillus niger (1) Cochliobolus sativus (1) Solid-state fermentation (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2008 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Influence of agitation speeds and aeration rates on the Xylanase activity of Aspergillus niger SS7 BABT Bakri,Yasser; Mekaeel,Alaa; Koreih,Amal. In this study, the effect of agitation and aeration rates on xylanase activity of Aspergillus niger SS7 in 3-litre stirred tank bioreactor was investigated. The agitation rates tested were 100, 200 and 300 rpm at each airflow rates of 0.5, 1.0 and 1.5 vvm. The maximum xylanase activity in mono- agitator system was at the agitation speed of 200 rpm and aeration rate of 1.0 vvm. In bi-agitator system, at low agitation speed (100 rpm), the xylanase activity was enhanced by 13% compared to mono- agitator system for an aeration rate of 1.0 vvm. Xylanase productivity in continuous culture was higher by approximately 3.5 times than in batch culture. Tipo: Info:eu-repo/semantics/article Palavras-chave: Aspergillus niger; Agitation; Aeration; Xylanase. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400003 Improvement of xylanase production by Cochliobolus sativus in solid state fermentation BJM Bakri,Yasser; Jawhar,Mohammed; Arabi,Mohammed Imad Eddin. The xylanase production by Cochliobolus sativus strain Cs6 was improved under solid state fermentation (SSF). High xylanase activity (1079 U/g) was obtained when wheat straw was used after 8 days of incubation. Combinations of sodium nitrate with peptone or yeast extract resulted in an increased xylanase production (1543 and 1483 U/g, respectively). The Cs6 strain grown in SSF in a simple medium, proved to be a promising microorganism for xylanase production. Tipo: Info:eu-repo/semantics/article Palavras-chave: Cochliobolus sativus; Xylanase; Solid-state fermentation. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300036 Registros recuperados: 2 Primeira ... 1 ... Última

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