Enhanced control of Listeria monocytogenes by in situ-produced pediocin during dry fermented sausage production
Article Abstract:
The effect of the presence bacteriocin-producing and non-producingPediococcus acidilactici on the growth of Listeria monocytogenes during dry fermented sausage production was examined. The results showed that meat fermentation, minimal heating after fermentation and drying of sausage reduced L. monocytogenes populations by five log units or more regardless of the presence or absence of bacteriocin. L. monocytogenes reduction was correlated to decrease in pH during fermentation. However, when acidity is insufficient for pathogen inhibition, bacteriocin production could facilitate reduction in populations of L. monocytogenes.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
A proposed nonpathogenic biological indicator for thermal inactivation of Listeria monocytogenes
Article Abstract:
Selection of spontaneous antibiotic resistant mutants for the avoidance of plasmids as a means of improving on the concept of biological indicators for Listeria monocytogenes is discussed. The heat resistances of Listeria inocua and L. monocytogenes were compared. The utility of an L. inocua strain for commercial applications as a biological indicator was established as it was ascertained that it is not a genetically engineered organism.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Purification and partial characterization of lacticin 481, a lanthionine-containining bacteriocin produced by Lactococcus lactis susbsp. lactis CNRZ 481
Article Abstract:
A sequential purification of lacticin 481, a bacteriocin produced by Lactococcus lactis subsp. lactis CNRZ 481, was described. The methodology involved using ammonnium sulfate precipitation, gel filtration and reversed-phase high-pressure liquid chromatography. Amino acid composition and sequence analysis showed that the bacteriocin contained a majority of nonpolar amino acids and revealed the presence of lanthionine residues.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Sources of Listeria monocytogenes contamination in a cold-smoked rainbow trout processing plant detected by pulsed-field gel electrophoresis typing
- Abstracts: Use of molecular typing methods to trace the dissemination of Listeria monocytogenes in a shrimp processing plant
- Abstracts: Two splice variants of the Wilms' tumor 1 gene have distinct functions during sex determination and nephron formation
- Abstracts: Escherichia coli is unable to produce pyrroloquinoline quinone. Antigen 43, the major phase-variable protein of the Eshcericha coli outer membrane, can exist as a family of proteins encoded by multiple alleles
- Abstracts: Modeling of growth of Lactobacillus sanfranciscensis and Candida milleri in response to process parameters of sourdough fermentation