Linked Life Data

18347792

Source:http://linkedlifedata.com/resource/pubmed/id/18347792

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-9-8
pubmed:abstractText
The microbial surface and flocculability were qualitatively characterized through the combination of the surface thermodynamic and the extended DLVO approaches, with Ralstonia eutropha, a polyhydroxybutyrate-producing bacterium, as an example. The negativity of the zeta potential of R. eutropha decreased from the initial -19.5 to -11 mV in its cultivation with the consumption of glucose. The total interfacial free energy (DeltaGadh) was changed from -80 to 28.5 mJ m(-2) in its entire growth process. This suggests that the bacterial surface changed from hydrophobic into hydrophilic, resulting in an alteration of its surface characteristics and flocculability in its different growth phases. As a result, the stability ratio of suspensions increased with the increasing cultivation time, indicating that the cell particles became more repulsive with each other and led to a more stable suspension of R. eutropha in its cultivation. The obtained information in this work might be useful for better understanding the surface characteristics and the flocculability and even manipulating its flocculability in the microbial growth process.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0175-7598
pubmed:author
pubmed:issnType
Print
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
187-94
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Quantifying the surface characteristics and flocculability of Ralstonia eutropha.
pubmed:affiliation
Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't