Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-8-20
pubmed:abstractText
Three different dissolved oxygen (DO) control approaches were proposed to improve hyaluronic acid (HA) production: a three-stage agitation speed control approach, a two-stage DO control approach, and an oxygen vector perfluorodecalin (PFC) applied approach. In the three-stage agitation speed control approach, agitation speed was 200 rpm during 0-8 h, 400 rpm during 8-12 h, and 600 rpm during 12-20 h. In the two-stage DO control strategy, DO was controlled at above 10% during 0-8 h and at 5% during 8-20 h. In the PFC applied approach, PFC (3% v/v) was added at 8 h. HA production reached 5.5 g/L in the three-stage agitation speed control culture model, and 6.3 g/L in two-stage DO control culture model, and 6.6 g/L in the PFC applied culture model. Compared with the other two DO control approaches, the PFC applied approach had a lower shear stress and thus a higher HA production was achieved.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1615-7605
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
755-63
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Comparative study on the influence of dissolved oxygen control approaches on the microbial hyaluronic acid production of Streptococcus zooepidemicus.
pubmed:affiliation
School of Biotechnology, Jiangnan University, 214122 Wuxi, China.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't