Antifungal activity of newly isolates of lactic acid bacteria

  • Laref Nora University of Es-Senia of Oran
  • Guessas Bettache University of Es-Senia of Oran
Keywords: lactic acid bacteria, antifungal activity, Lactobacillus spp., Aspergillus spp., Fusarium roseum, Trichoderma spp., Penicillium spp.

Abstract

A total of 54 strains of lactic acid bacteria isolated from silage, camel milk and carrot were screened for antifungal activity with overlay and confrontation assay. Six of them, belonging to the genera Lactobacillus, Lactobacillus plantarum and farciminis strains produce antifungal compounds active against Aspergillus spp., Fusarium roseum, Trichoderma spp., Penicillium spp. and Stemphylium spp. Approximately 16.66% of the isolates showed inhibitory activity against Aspergillus spp. The antifungal compounds were originated from organic acids, the maximum antifungal activity was observed at pH 2.0, but it decreased at pH 3.0÷7.0. Inhibitory activity did not change after treatment with proteolytic enzymes, heating, refrigeration and freezing. No inhibitory activity could be detected against the mould Aspergillus spp. with non-concentrated cell free supernatant and volatile substance.

Published
2013-09-12
How to Cite
1.
Nora L, Bettache G. Antifungal activity of newly isolates of lactic acid bacteria. Innovative Romanian Food Biotechnology [Internet]. 12Sep.2013 [cited 2May2024];(13):80-8. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/IFRB/article/view/3488
Issue
No 13 (2013)
Section
Articles

Most read articles by the same author(s)

Obs.: This plugin requires at least one statistics/report plugin to be enabled. If your statistics plugins provide more than one metric then please also select a main metric on the admin's site settings page and/or on the journal manager's settings pages.