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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1989-12-13
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pubmed:abstractText |
The ability of Klebsiella oxytoca NRRL-B199 to use either lactose or the mixture of glucose and galactose as substrate for the production of 2,3-butanediol was studied in batch fermentations with different conditions of aeration and pH. 2,3-butanediol was undetected, or present in minute concentration in the fermentation broths with lactose, while it was the main product from glucose + galactose with final concentrations of up to 18.8g/l in media at pH 6.0. Under conditions optimal for 2,3-butanediol synthesis, when aeration limited growth, the rate of biomass growth was more tightly related to the aeration rate in lactose medium than in glucose + galactose medium. These relations suggest that the growth rate is very low on lactose but still considerable on glucose + galactose when aeration rate tends toward zero. Corresponding, the metabolism is more oxidative in the former medium, yielding mainly acetate as product.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/2,3-butylene glycol,
http://linkedlifedata.com/resource/pubmed/chemical/Butylene Glycols,
http://linkedlifedata.com/resource/pubmed/chemical/Galactose,
http://linkedlifedata.com/resource/pubmed/chemical/Glucose,
http://linkedlifedata.com/resource/pubmed/chemical/Lactose,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen
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pubmed:status |
MEDLINE
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pubmed:issn |
0302-8933
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
152
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
411-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2818130-Butylene Glycols,
pubmed-meshheading:2818130-Chromatography, High Pressure Liquid,
pubmed-meshheading:2818130-Fermentation,
pubmed-meshheading:2818130-Galactose,
pubmed-meshheading:2818130-Glucose,
pubmed-meshheading:2818130-Hydrogen-Ion Concentration,
pubmed-meshheading:2818130-Hydrolysis,
pubmed-meshheading:2818130-Klebsiella,
pubmed-meshheading:2818130-Lactose,
pubmed-meshheading:2818130-Oxygen
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pubmed:year |
1989
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pubmed:articleTitle |
Influence of sugar source (lactose, glucose, galactose) on 2,3-butanediol production by Klebsiella oxytoca NRRL-B199.
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pubmed:affiliation |
Unité de Chimie des Interfaces, Universite Catholique de Louvain, Belgium.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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