Document Detail


Small scale biosynthesis and purification of gram quantities of chorismic acid.
MedLine Citation:
PMID:  8744423     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper details improvements in the biosynthetic method of purification of chorismic acid using Klebsiella pneumoniae 62-1. New growth and accumulation conditions yielded 4 L of accumulation medium containing approximately 0.5 g/L of chorismate from 2 L of bacterial growth. Improvements in the handling and extraction procedures produced yields of approximately 2 g of 75 to 90% chorismic acid. A new recrystallization procedure yielded chorismic acid 97% pure by weight (using epsilon 275 = 2630 M-1 cm-1), and 99.8% pure by enzymatic conversion. These results represent a three- to five-fold increase in yield over average published values.
Authors:
C E Rieger; J L Turnbull
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Preparative biochemistry & biotechnology     Volume:  26     ISSN:  1082-6068     ISO Abbreviation:  Prep. Biochem. Biotechnol.     Publication Date:  1996 Feb 
Date Detail:
Created Date:  1996-09-26     Completed Date:  1996-09-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9607037     Medline TA:  Prep Biochem Biotechnol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  67-76     Citation Subset:  IM    
Affiliation:
Department of Chemistry and Biochemistry Concordia University, Montreal, Quebec.
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MeSH Terms
Descriptor/Qualifier:
Chorismic Acid / isolation & purification*,  metabolism*
Crystallization
Culture Media, Conditioned
Drug Stability
Hydrogen-Ion Concentration
Klebsiella pneumoniae / growth & development,  metabolism*
Chemical
Reg. No./Substance:
0/Culture Media, Conditioned; 617-12-9/Chorismic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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