Occurrence of Non-Lactic Acid Bacteria Populations Involved in Protein Hydrolysis of Cold-Stored High Moisture Mozzarella Cheese (Articolo in rivista)

Type
Label
  • Occurrence of Non-Lactic Acid Bacteria Populations Involved in Protein Hydrolysis of Cold-Stored High Moisture Mozzarella Cheese (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.fm.2011.10.009 (literal)
Alternative label
  • Baruzzi F; Lagonigro R; Quintieri L; Morea M; Caputo L (2012)
    Occurrence of Non-Lactic Acid Bacteria Populations Involved in Protein Hydrolysis of Cold-Stored High Moisture Mozzarella Cheese
    in Food microbiology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Baruzzi F; Lagonigro R; Quintieri L; Morea M; Caputo L (literal)
Pagina inizio
  • 37 (literal)
Pagina fine
  • 44 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 30 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ispa-cnr (literal)
Titolo
  • Occurrence of Non-Lactic Acid Bacteria Populations Involved in Protein Hydrolysis of Cold-Stored High Moisture Mozzarella Cheese (literal)
Abstract
  • The aim of this study was to analyse non-lactic acid bacteria populations (NLABPs) and evaluate their role in proteolysis of cold-stored high moisture (HM) Mozzarella cheese. NLABPs reached values close to 8log cfumL -1 after seven days of cold storage. Sequencing of 16 rDNA and rpoB genes and molecular biotyping allowed to identify 66 bacterial strains belonging to 25 species from 15 genera, mainly represented by Pseudomonas, Acinetobacter, and Rahnella. Fifteen strains showed proteolytic activity values higher than 1000.00?g GlymL -1 after 24h of growth in skimmed milk. Moreover, as shown by Urea-PAGE, 11 proteolytic strains caused partial or total disappearance of at least one of the caseins. Their proteolytic behaviour was assessed even when they grew inside the governing liquid together with HM Mozzarella cheese at 4°C for 12 days. This is the first report that throws light on the complexity of NLABPs in HM Mozzarella cheese, demonstrating that some strains caused the partial hydrolysis of ?, ?, and ? caseins on its outer surface where a concomitant wrinkling and successive exfoliation became visible without significant changes in texture characteristics. (IF 3.283) (literal)
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