Linked Life Data

6435520

Source:http://linkedlifedata.com/resource/pubmed/id/6435520

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-11-13
pubmed:abstractText
Rsan-ver, a strain of Pseudomonas aeruginosa isolated at this department, was used for the development of a continuous process for biosurfactant production. The active compounds were identified as rhamnolipids. A final medium for production was designed in continuous culture by means of medium shifts, since the formation of surface-active compounds was decisively influenced by the composition and concentration of the medium components. In the presence of yeast extract, biosurfactant production was poor. For the nitrogen-source nitrate, which was superior to ammonium, an optimum carbon-to-nitrogen ratio of ca. 18 existed. The iron concentration needed to be minimized to 27.5 micrograms of FeSO4 X 7H2O per g of glucose. A carbon-to-phosphate ratio below 16 yielded the maximum production of rhamnolipids. The final productivity dilution rate diagram indicated that biosurfactant production was correlated to low growth rates (dilution rate below 0.15 h-1). With a medium containing 18.2 g of glucose liter-1, a biosurfactant concentration (expressed as rhamnolipids) of up to 1.5 g liter-1 was obtained in the cell-free culture liquid.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0099-2240
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
301-5
pubmed:dateRevised
2010-9-13
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Pseudomonas aeruginosa biosurfactant production in continuous culture with glucose as carbon source.
pubmed:publicationType
Journal Article