Linked Life Data

19129630

Source:http://linkedlifedata.com/resource/pubmed/id/19129630

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-1-23
pubmed:abstractText
To develop a strategy for improved production of clavulanic acid (CA), we investigated the effect of using oils on cell growth and CA production during the fermentation of Streptomyces clavuligerus NRRL 3585. In this analysis, triolein, whose fatty acid is oleic acid only, was the best oil source for CA production, but free fatty acids generated from the hydrolysis of oils in a culture broth negatively impacted CA production and cell growth. Hence, we screened for mutants that were resistant to high concentrations of oleic acid. From this screen we identified a mutant S. clavuligerus, OL13, that had a minimum inhibitory concentration (MIC) to oleic acid of 2.1 g/l, much higher than that of S. clavuligerus NRRL 3585, at 0.4 g/l. Not only was cell growth improved, but maximum CA production, at 1,950 mg/l, was approximately 2.0-fold higher than that of the parent strain.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1347-6947
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
73
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
160-4
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
An approach to strain improvement and enhanced production of clavulanic acid in Streptomyces clavuligerus.
pubmed:affiliation
School of Life Sciences and Biotechnology, Korea University.
pubmed:publicationType
Journal Article