These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Evaluation of the spoilage lactic acid bacteria in modified-atmosphere-packaged artisan-type cooked ham using culture-dependent and culture-independent approaches.
    Author: Vasilopoulos C, Ravyts F, De Maere H, De Mey E, Paelinck H, De Vuyst L, Leroy F.
    Journal: J Appl Microbiol; 2008 May; 104(5):1341-53. PubMed ID: 18070037.
    Abstract:
    AIMS: To investigate microbial diversity and population dynamics of spoilage-sensitive modified-atmosphere-packaged (MAP) artisan-type cooked ham in relation to storage temperature. METHODS AND RESULTS: Modified-atmosphere-packaged cooked ham samples were stored at different temperatures (4, 7, 12 and 26 degrees C). Traditional methods were combined with polymerase chain reaction (PCR)-based techniques, i.e. a culture-dependent, repetitive DNA sequence-based method (rep-PCR) and a culture-independent approach (PCR-denaturing gradient gel electrophoresis of 16S rRNA gene fragments; PCR-DGGE). rep-PCR on DNA extracted from MRS isolates indicated that Leuconostoc carnosum and Enterococcus faecalis prevailed at all temperatures, with the latter becoming more important above 7 degrees C. PCR-DGGE indicated the additional presence of Carnobacterium divergens and Brochothrix thermosphacta at all temperatures. Discriminant analysis related variation within the Leuc. carnosum cluster to the storage temperature. High performance liquid chromatography revealed that lactic acid was the main metabolite because of glucose consumption. CONCLUSIONS: Leuconostoc carnosum, C. divergens, E. faecalis and Br. thermosphacta are the main spoilage bacteria of artisan-type MAP cooked ham. Their population dynamics are affected by storage temperature. SIGNIFICANCE AND IMPACT OF THE STUDY: Temperature can condition the development of spoilage in artisan-type MAP cooked ham, acting at both species and biotype level.
    [Abstract] [Full Text] [Related] [New Search]