Microorganisms of the intestinal microbiota of Oncorhynchus mykiss produce antagonistic substances against bacteria contaminating food and causing disease in humans

Submitted: 25 August 2016
Accepted: 31 May 2017
Published: 27 June 2017
Abstract Views: 1048
PDF: 813
HTML: 222
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Authors

The objective was to analyse the antibacterial ability of members of the intestinal microbiota of Oncorhynchus mykiss specimens on several bacterial target strains that contaminate food and cause disease in humans. Bacterial colonies from an intestinal portion of the 20 specimens of O. mykiss were obtained in different culture media. Several of the colonies showed antibacterial action on different target strains. The bacterial species with the highest antagonistic capacity were Hafnia alvei and Lactococcus lactis and the more susceptible target strains were Aeromonas hydrophila, Listeria monocytogenes and Escherichia coli. Moreover, it was shown that all the antibacterial substances were susceptible to the action of various proteolytic enzymes. The detection of substances of a proteinaceous nature, possibly bacteriocins produced by bacteria of the intestinal microbiota of O. mykiss, allows further study of these products to establish biotechnological developments in the area of health protection and food biopreservation.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.

Citations

How to Cite

1.
Lobos O, Barrera A, Padilla C. Microorganisms of the intestinal microbiota of Oncorhynchus mykiss produce antagonistic substances against bacteria contaminating food and causing disease in humans. Ital J Food Safety [Internet]. 2017 Jun. 27 [cited 2024 Jul. 25];6(2). Available from: https://www.pagepressjournals.org/ijfs/article/view/6240