Data di Pubblicazione:
2007
Citazione:
Characterization of Pseudomonas spp. Isolated from Foods / L. Franzetti, M. Scarpellini. - In: ANNALS OF MICROBIOLOGY. - ISSN 1590-4261. - 57:1(2007), pp. 39-47.
Abstract:
Putative Pseudomonas spp. (102 isolates) from different foods were first characterised by API 20NE and then tested for some
enzymatic activities (lipase and lecithinase production, starch hydrolysis and proteolytic activity). However subsequent molecular tests
did not always confirm the results obtained, thus highlighting the limits of API 20NE. Instead RFLP ITS1 and the sequencing of 16S rRNA
gene grouped the isolates into 6 clusters: Pseudomonas fluorescens (cluster I), Pseudomonas fragi (cluster II and V) Pseudomonas
migulae (cluster III), Pseudomonas aeruginosa (cluster IV) and Pseudomonas chicorii (cluster VI). The pectinolytic activity was typical
of species isolated from vegetable products, especially Pseudomonas fluorescens. Instead Pseudomonas fragi, predominantly isolated
from meat was characterised by proteolytic and lipolytic activities.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Pseudomonas fluorescens ; enzymatic activity ; ITS1
Elenco autori:
L. Franzetti, M. Scarpellini
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