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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(1): 109-120
DOI: https://doi.org/10.20546/ijcmas.2019.801.014


Identification of Antifungal Metabolites of Lactic Acid Bacteria
Cissé Mohamed*, N’guessan Elise Amoin and Assoi Sylvie
Université Peleforo Gon Coulibaly de Korhogo (Cote d’Ivoire)
*Corresponding author
Abstract:

Antifungal activity of lactic acid bacteria in food preservation is one of the technological properties sought. The antifungal effect of lactic acid bacteria has been studied. Four strains namely Lactobacillus plantarum G100, Lactobacillus brevis L62, Lactobacillus rhamnosus THT and Pediococcus pentosaceus Hela showed inhibitory activity against Tricoderma F14, Penicillium canescens 10-10 C, Aspergillus niger and Rhyzopus stoloniferous. Antifungal activity of L. rhamnosus THT strain depended mostly on the presence of these organic acids. L. brevis L62 and P. pentosaceus Hela strains depended on the production of hydrogen peroxide, especially in acidic media. Lactobacillus plantarum G100 still remains insensitive to the action of hydrogen peroxide, but its antagonism effect was reduced after subjecting its supernatant to a protease treatment at this same pH of 7. L. plantarum G100 activity could be ascribe to the presence of peptide compounds as well as that of organic acids. The inhibitory effect was even higher when the pH of the medium was between 3 and 4.5. Loss of this activity was remarked when pH was above 6. Lastly, whatever the nature of the metabolites secreted into the culture medium, their activities remained effective when the pH was acidic and quite similar to the pH observed at the end of the culture period.


Keywords: Antifungal metabolites, Lactic acid bacteria, pH
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How to cite this article:

Cissé Mohamed, N’guessan Elise Amoin and Assoi Sylvie. 2019. Identification of Antifungal Metabolites of Lactic Acid Bacteria.Int.J.Curr.Microbiol.App.Sci. 8(1): 109-120. doi: https://doi.org/10.20546/ijcmas.2019.801.014