Production of amylolytic enzymes by Bacillus amyloliquefaciens in pure culture and in co-culture with Zymomonas mobilis

Mixed cultures of Bacillus amyloliquefaciens MIR-41 and Zymomonas mobilis Flo-B3 showed a 2.5 fold increase in alpha-amylase production, and a 20 times fold decrease in ethanol production compared with pure cultures. Enhanced alpha-amylase production by B. amyloliquefaciens in mixed cultures after 2...

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Bibliographic Details
Published in:Biotechnology letters 1999-03, Vol.21 (3), p.249-252
Main Authors: Abate, C.M, Castro, G.R, Sineriz, F, Callieri, D.A.S
Format: Article
Language:English
Subjects:
alpha-amylase
Bacillus amyloliquefaciens
Bacteria
Biological and medical sciences
Biotechnology
Enzyme engineering
Ethanol
ethanol production
Fermentation
Fundamental and applied biological sciences. Psychology
Methods. Procedures. Technologies
Microbiology
Production of selected enzymes
Zymomonas mobilis
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Summary:Mixed cultures of Bacillus amyloliquefaciens MIR-41 and Zymomonas mobilis Flo-B3 showed a 2.5 fold increase in alpha-amylase production, and a 20 times fold decrease in ethanol production compared with pure cultures. Enhanced alpha-amylase production by B. amyloliquefaciens in mixed cultures after 24 h could be attributed to the lack of repression in the synthesis of alpha-amylase by ethanol and protease inhibition by the pH of the culture medium.
ISSN:0141-5492
1573-6776
DOI:10.1023/A:1005477505683