FEMS Microbiology Letters 2002-05-07

Decarboxylase activity involved in methyl ketone production by Staphylococcus carnosus 833, a strain used in sausage fermentation.

S Fadda, A Lebert, S Leroy-Sétrin, R Talon

Index: FEMS Microbiol. Lett. 210(2) , 209-14, (2002)

Full Text: HTML

Abstract

Staphylococcus carnosus strain 833, inoculated into sausage, increased the levels of methyl ketones which contributed to the cured aroma. These ketones were predicted to arise from incomplete beta-oxidation followed by a decarboxylation. To check this hypothesis, we measured the beta-decarboxylase activity in resting cells of S. carnosus grown in complex or in synthetic medium, using as substrate a beta-ketoacid, which can be an intermediate of the beta-oxidation pathway. This activity was present throughout the growth period. The enzyme appeared to be constitutive because no induction was observed. High aeration, a pH of 5 and the presence of nitrate promoted the production of methyl ketones.

Related Compounds

  • Pentan-2-one

Related Articles:

Calculating virtual log P in the alkane/water system (log P(N)(alk)) and its derived parameters deltalog P(N)(oct-alk) and log D(pH)(alk).

2005-05-05

[J. Med. Chem. 48 , 3269-79, (2005)]

Evaluation of injection methods for fast, high peak capacity separations with low thermal mass gas chromatography.

2015-05-01

[J. Chromatogr. A. 1392 , 82-90, (2015)]

Development of a standard gas generating vial comprised of a silicon oil-polystyrene/divinylbenzene composite sorbent.

2015-09-04

[J. Chromatogr. A. 1410 , 1-8, (2015)]

A novel carbonyl reductase with anti-Prelog stereospecificity from Acetobacter sp. CCTCC M209061: purification and characterization.

2014-01-01

[PLoS ONE 9(4) , e94543, (2014)]

Olfactory psychometric functions for homologous 2-ketones.

2009-07-19

[Behav. Brain Res. 201(1) , 207-15, (2009)]

More Articles...