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Istituto di scienza dell'alimentazione

Torna all'elenco Contributi in rivista anno 2014

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Functional properties of Lactobacillus plantarum strains: A multivariate screening study

Anno di pubblicazione: 2014

Formato: Elettronico Cartaceo

Autori: Guidone, Angela; Zotta, Teresa; Ross, Reynolds Paul; Stanton, Catherine S.; Rea, Mary C.; Parente, Eugenio; Ricciardi, Annamaria

Affiliazioni autori: Universita degli Studi della Basilicata; Istituto di Scienze dell'Alimentazione; Teagasc - Irish Agriculture and Food Development Authority; University College Cork

Autori CNR:

  • EUGENIO PARENTE
  • TERESA ZOTTA

Lingua: inglese

Abstract: Thirty-two Lactobacillus plantarum strains isolated from different sources were genetically characterized at subspecies level with recA gene based multiplex PCR and pulsed-field electrophoresis. All the strains were tested invitro for functional properties (ability to form biofilms, agglutination of yeast cells, bile salt hydrolase activity, ?-galactosidase activity, surface hydrophobicity, resistance to lysozyme, gastric juice and bile salts), for antimicrobial activity and for antibiotic resistance. The presence of bsh and msa genes and of the pln bacteriocin loci were also evaluated. Hierarchical cluster analysis was used to identify eight different plantaritypes sharing similar patterns of pln loci. A global functional score was calculated by transforming values for continuous invitro functional properties in an ordinal scale by cluster analysis, while a nominal scale was used for the other properties. Multidimensional scaling was used to evaluate the similarity in functional properties among the isolates and to evaluate the relationships between source of isolation and functional properties. Nine strains showed the best invitro functional potential and a significant relationship was found between source of isolation and functional score.This study confirmed a high heterogeneity in functional properties among L. plantarum strains and provides insight for optimal screening strategies. © 2013 Elsevier Ltd.

Lingua abstract: inglese

Pagine da: 69

Pagine a: 76

Rivista:

Lebensmittel-Wissenschaft + Technologie Elsevier.
Paese di pubblicazione: Paesi Bassi
Lingua: inglese
ISSN: 0023-6438

Numero volume: 56

Numero fascicolo: 1

DOI: 10.1016/j.lwt.2013.10.036

Referee: Sì: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-84890188820]

Parole chiave:

  • Functional properties
  • Lactobacillus plantarum
  • Multivariate analysis
  • Plantaricin

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-84890188820&origin=inward

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