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Effect of the Medium Composition on Formation of Alpha Amylase by Bacillus licheniformis GMAF438149

Effect of the Medium Composition on Formation of Alpha Amylase by Bacillus licheniformis GMAF438149

Effect of the Medium Composition on Formation of Alpha Amylase by Bacillus licheniformis GMAF438149

نوع فایل :PDFتعداد صفحات :9
سال انتشار :1395
چکیده
A new medium was developed to induce high level of α- amylase from Bacilluslicheniformis GMAF438149.The strain of Bacillus licheniformis was grown on the presence of different carbon , nitrogen and metal ions. The high level α-amylase has been produced when potato starch and xylose were added to medium. Meat extract ,as an organic nitrogen source, had affected on enzyme yield , while inorganic sources were not found to be effective. Calcium chloride increased activity of the produced enzyme ;however, a slight activity was observed by increase of oxygen concentration. The optimum temperature of Bacillus licheniformis GMAF 438149 for α–amylase production was determined 39°c and…

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