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Bench scale production of benzohydroxamic acid using acyl transfer activity of amidase from Alcaligenes sp. MTCC 10674.
MedLine Citation:
PMID:  23065258     Owner:  NLM     Status:  Publisher    
The acyl transfer activity of the amidase of Alcaligenes sp. MTCC 10674 has been applied to the conversion of benzamide and hydroxylamine to benzohydroxamic acid. The unique features of the acyl transfer activity of this organism include its optimal activity at 50 °C and very high substrate (100 mM benzamide) and product (90 mM benzohydroxamic acid) tolerance among the hitherto reported enzymes. The bench scale production of benzohydroxamic acid was carried out in a fed-batch reaction (final volume 1 l) by adding 50 mM benzamide and 250 mM of hydroxylamine after every 20 min for 80 min in 0.1 M potassium phosphate buffer (pH 7.0) at 50 °C, using resting cells equal to 4.0 mg dcm/ml of reaction mixture. From 1 l of reaction mixture 33 g of benzohydroxamic acid was recovered with 24.6 g l(-1) h(-1) productivity. The acyl transfer activity of the amidase of Alcaligenes sp. MTCC 10674 and the process developed in the present study are of industrial significance for the enzyme-mediated production of benzohydroxamic acid.
Ravi Kant Bhatia; Shashi Kant Bhatia; Praveen Kumar Mehta; Tek Chand Bhalla
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-16
Journal Detail:
Title:  Journal of industrial microbiology & biotechnology     Volume:  -     ISSN:  1476-5535     ISO Abbreviation:  J. Ind. Microbiol. Biotechnol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9705544     Medline TA:  J Ind Microbiol Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, Himachal Pradesh, 171005, India.
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