Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-12-10
pubmed:abstractText
The influence of the carbon source on alpha-amylase production by Aspergillus oryzae was quantified in carbon-limited chemostat cultures. The following carbon sources were investigated: maltose, maltodextrin (different chain lengths), glucose, fructose, galactose, sucrose, glycerol, mannitol and acetate. A. oryzae did not grow on galactose as the sole carbon source, but galactose was co-metabolized together with glucose. Relative to that on low glucose concentration (below 10 mg/l), productivity was found to be higher during growth on maltose and maltodextrins, whereas it was lower during growth on sucrose, fructose, glycerol, mannitol and acetate. During growth on acetate there was no production of alpha-amylase, whereas addition of small amounts of glucose resulted in alpha-amylase production. A possible induction by alpha-methyl-D-glucoside during growth on glucose was also investigated, but this compound was not found to be a better inducer of a-amylase production than glucose. The results strongly indicate that besides acting as a repressor via the CreA protein, glucose acts as an inducer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0175-7598
pubmed:author
pubmed:issnType
Print
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
346-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Influence of carbon source on alpha-amylase production by Aspergillus oryzae.
pubmed:affiliation
Center for Process Biotechnology, BioCentrum--DTU, Technical University of Denmark, Lyngby.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't