• Home
  • Search Results
  • The application of staphylococci with flavour-generating potential is affected by acidification in fermented dry sausages.

The application of staphylococci with flavour-generating potential is affected by acidification in fermented dry sausages.

Food microbiology (2010-08-07)
Frédéric Ravyts, Liselot Steen, Olivier Goemaere, Hubert Paelinck, Luc De Vuyst, Frédéric Leroy
ABSTRACT

Differences in the production of bacterial metabolites with potential impact on fermented sausage flavour were found in meat simulation medium when comparing different strains of Staphylococcus xylosus and Staphylococcus carnosus as starter cultures. Overall, higher levels of 3-methyl-1-butanol and acetoin were found for S. xylosus, with some intraspecies variability. In addition, sausage fermentation parameters affected staphylococcal growth and metabolism. Strong acidification, as in Northern-European types of fermented dry sausage, inhibited S. xylosus 3PA6 but not S. carnosus 833. During a milder, Southern-European type of acidification, both strains displayed survival over time. During in situ sausage trials, variations in the degree of acidification and the choice of starter microorganisms were of importance, whereas modifications in fat and salt contents had no effects. Staphylococcus sciuri alphaSg2, Staphylococcus succinus 4PB1, and S. xylosus 3PA6 were unable to survive the fermentation of a Northern-European type of fermented dry sausage, characterized by low or no 3-methyl-1-butanol and acetoin production. Inoculation with S. sciuri alphaSg2, S. succinus 4PB1, or S. xylosus 3PA6 led to 3-methyl-1-butanol and acetoin production in Southern-European type of fermented dry sausages, which was not observed with S. carnosus 833.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
3-Methyl-1-butanol, anhydrous, ≥99%
Sigma-Aldrich
Isoamyl alcohol, ≥98%, FG
Sigma-Aldrich
3-Methylbutanol, BioReagent, for molecular biology, ≥98.5%
Sigma-Aldrich
3-Methyl-1-butanol, reagent grade, 98%
Sigma-Aldrich
Isoamyl alcohol, natural, ≥98%, FG
Sigma-Aldrich
3-Methylbutanol, puriss. p.a., ACS reagent, ≥98.5% (GC)
Sigma-Aldrich
3-Methyl-1-butanol, ACS reagent, ≥98.5%
Sigma-Aldrich
3-Methylbutanol, BioUltra, for molecular biology, ≥99.0% (GC)
Supelco
3-Methylbutanol, analytical standard

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.