Isolation and identification of Yersinia and Pseudomonas sp. from Australian milk and salad using 16s rDNA

School of Agriculture and Food Sciences, The University of Queensland, Brisbane, 4072, Australia
Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
DOI
10.7287/peerj.preprints.820v1
Subject Areas
Food Science and Technology, Microbiology, Molecular Biology
Keywords
Mixed salad, Milk, Yersinia, Pseudomonas, PCR
Copyright
© 2015 Nawaz et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ PrePrints) and either DOI or URL of the article must be cited.
Cite this article
Nawaz MA, Bhattarai RR. 2015. Isolation and identification of Yersinia and Pseudomonas sp. from Australian milk and salad using 16s rDNA. PeerJ PrePrints 3:e820v1

Abstract

A systematic research was conducted for the isolation and identification of undesirable microorganisms in food products using molecular approach. The result revealed the presence of Yersinia aleksiciae and Pseudomonas fluorescens strains in Australian pasteurized milk and mixed salad respectively. Y. aleksiciae grouped as lacking virulence marker and is regarded non-pathogenic. P. fluorescens has been identified as a marker of spoilage of ready-to-eat vegetable salads. This study confirms the rapidity and sensitivity of 16s rDNA analysis in identifying strains which contribute in early monitoring, accurate analysis and control of microbial risks in food products. The described methodology has special relevance in food quality control and safety.

Author Comment

This study is investigating the isolation, identification and characterization of microbial strains from milk and mixed salad available in Australian markets.

Supplemental Information

Agarose Gel of PCR Products

Agarose Gel of PCR Products

DOI: 10.7287/peerj.preprints.820v1/supp-1