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Sulfur compound production by Geotrichum candidum from L-methionine: importance of the transamination step
- Source :
- FEMS Microbiology Letters; December 2001, Vol. 205 Issue: 2 p247-247, 1p
- Publication Year :
- 2001
-
Abstract
- <scp>l</scp>-Methionine degradation products and catabolic enzymatic activities involved in methanethiol generation were investigated in Geotrichum candidum</it> GcG. <scp>l</scp>-Methionine was easily degraded by G. candidum</it> and the transamination product, 4-methylthio-2-oxobutyric acid (KMBA), was found to transiently accumulate. In parallel, considerable <scp>l</scp>-methionine aminotransferase activity was found in this microorganism. <scp>l</scp>-Methionine and KMBA demethiolating activities were also detected. The degradation of KMBA corresponded to an overall increase in the production of volatile sulfur compounds. These results show that the transamination pathway is of major importance in the initial breakdown of <scp>l</scp>-methionine by this cheese-ripening microorganism.
Details
- Language :
- English
- ISSN :
- 03781097 and 15746968
- Volume :
- 205
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- FEMS Microbiology Letters
- Publication Type :
- Periodical
- Accession number :
- ejs35309632
- Full Text :
- https://doi.org/10.1111/j.1574-6968.2001.tb10956.x