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Nutritional and environmental factors affecting cellulase production by two strains of cellulolytic bacilli

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Abou-Taleb, Khadiga A.A

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Language: English Summary language: Arabic Description: P.1079-1093Other title:

العوامل الغذائية والبيئية المؤثرة على انتاج السليوليز بواسطة سلالتين من العصويات المحللة للسليلوز [Added title page title]

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Journal of biological chemistry and environmental sciences, 2009 v. 4 (1) Part 5 [electronic resource].

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In: Journal of Biological Chemistry and Environmental Sciences 2009.v.5(1)VSummary: Effect of some nutritional and environmental factors on growth and cellulase production by Bacillus alcaiophilus S39 and Bacillus amyloliquefaciens C23 was investigated. Results indicated that 1% carboxymethylcellulose (CMC) and 0.7% yeast extract were most effective as the carbon and nitrogen sources respectively. Initial pH 7 and 3% inoculum size found to be optimal for growth and cdlulase production. Incubation temperature at 30 and 45°C achieved the highest activity of cellulase for Bacillus aicaiophilus 839 and Bacillus amyioliquefaciens C23 respectively, and the suitable shaking rate was 150 and 200 rpm.

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Effect of some nutritional and environmental factors on growth and cellulase production by Bacillus alcaiophilus S39 and Bacillus amyloliquefaciens C23 was investigated. Results indicated that 1% carboxymethylcellulose (CMC) and 0.7% yeast extract were most effective as the carbon and nitrogen sources respectively. Initial pH 7 and 3% inoculum size found to be optimal for growth and cdlulase production. Incubation temperature at 30 and 45°C achieved the highest activity of cellulase for Bacillus aicaiophilus 839 and Bacillus amyioliquefaciens C23 respectively, and the suitable shaking rate was 150 and 200 rpm.

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