Short communication: Technological and genotypic comparison between Streptococcus macedonicus and Streptococcus thermophilus strains coming from the same dairy environment (Articolo in rivista)

Type
Label
  • Short communication: Technological and genotypic comparison between Streptococcus macedonicus and Streptococcus thermophilus strains coming from the same dairy environment (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.3168/jds.2011-4630 (literal)
Alternative label
  • G. Blaiotta , A. Sorrentino ,A. Ottombrino , M. Aponte (2011)
    Short communication: Technological and genotypic comparison between Streptococcus macedonicus and Streptococcus thermophilus strains coming from the same dairy environment
    in Journal of dairy science; American Dairy Science Association-ADSA, Champaign (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Blaiotta , A. Sorrentino ,A. Ottombrino , M. Aponte (literal)
Pagina inizio
  • 5871 (literal)
Pagina fine
  • 5877 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 94 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento Scienza degli Alimenti, Università degli Studi di Napoli Federico II, Istituto di Scienza dell'Alimentazione, Istituto di Scienza dell'Alimentazione, Dipartimento Scienza degli Alimenti, Università degli Studi di Napoli Federico II, (literal)
Titolo
  • Short communication: Technological and genotypic comparison between Streptococcus macedonicus and Streptococcus thermophilus strains coming from the same dairy environment (literal)
Abstract
  • The species Streptococcus thermophilus is widely used for the preparation of several dairy products, and its technological contribution is clear. On the other hand, although Streptococcus macedonicus was first described more than 10 yr ago and, despite the scientific interest around this issue, the exact role of Strep. macedonicus in cheese making has yet to be clarified. In this study, 121 strains belonging to both species and isolated from the same dairy environment were genetically characterized by random amplification of polymorphic DNA (RAPD)-PCR and compared for the main biochemical features of technological interest, such as acid production, galactose utilization, citrate metabolism, exopolysaccharide production, and lipolytic, ureolytic, exocellular proteolytic, and decarboxylasic activities. Analysis by RAPD-PCR highlighted a remarkable genotypic heterogeneity among strains in both species, and, at a similarity level of 78%, all the isolates and reference strains of Strep. thermophilus grouped together and were well separated from the strains of Strep. macedonicus, confirming that these 2 species are different microbial entities. Comparison between genetic and phenotypic or biotechnological data did not reveal any relationships. (literal)
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