Extracellular protease activities in relation to xylanase secretion in an alkalophilic Bacillus sp

The proteolytic activity of an alkalophilic Bacillus sp. (NCL 87-6-10) correlates with xylanase secretion. Addition of DL-norvaline, glycine or Casamino acids to a medium formulated for xylanase production resulted in 2-5-fold enhancement of xylanase secretion (8 to 45 IU/ml). Inhibition of proteoly...

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Bibliographic Details
Published in:Biotechnology letters 1997-07, Vol.19 (7), p.599-601
Main Authors: BALAKRISHNAN, H, SRINIVASAN, M. C, RELE, M. V
Format: Article
Language:English
Subjects:
Bacillus
Biological and medical sciences
Biotechnology
Enzyme engineering
Fermentation
Fundamental and applied biological sciences. Psychology
Methods. Procedures. Technologies
Microbiology
Production of selected enzymes
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Summary:The proteolytic activity of an alkalophilic Bacillus sp. (NCL 87-6-10) correlates with xylanase secretion. Addition of DL-norvaline, glycine or Casamino acids to a medium formulated for xylanase production resulted in 2-5-fold enhancement of xylanase secretion (8 to 45 IU/ml). Inhibition of proteolytic activity is a possible mechanism for enhanced xylanase activity.[PUBLICATION ABSTRACT]
ISSN:0141-5492
1573-6776
DOI:10.1023/A:1018314109735