DALIE, Doguiet Koffi Denis; PINSON-GADAIS, Laetitia; ATANASOVA-PENICHON, Vessela; MARCHEGAY, Gisele; BARREAU, Christian; DESCHAMPS, Alain; RICHARD-FORGET, Florence

doi:10.1016/j.foodcont.2011.08.008

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DALIE, Doguiet Koffi Denis
Unité de recherche Mycologie et Sécurité des Aliments [MycSA]

PINSON-GADAIS, Laetitia
Unité de recherche Mycologie et Sécurité des Aliments [MycSA]

ATANASOVA-PENICHON, Vessela
Unité de recherche Mycologie et Sécurité des Aliments [MycSA]

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Food Control. 2012, vol. 23, n° 2, p. 405-411

Elsevier

Résumé en anglais

The aim of this work was to study the effectiveness of a Pediococcus pentosaceus strain L006, isolated from maize leaf and previously characterised for its high antifungal efficiency, on fumonisin biosynthesis by Fusarium verticillioides. Studies performed in GYEP medium supplemented with amylopectin showed a significant increase in fumonisin production when the F. verticillioides strain was simultaneously co-inoculated with the P. pentosaceus strain or inoculated in a three-day-old culture of this lactic acid bacteria. Our studies also demonstrated that some extracellular metabolites produced in MRS medium by the P. pentosaceus strain L006 were able to significantly reduce fumonisin production in liquid medium as well as on maize kernels. Fumonisin yields by F. verticillioides inoculated on autoclaved maize kernels were reduced by a factor ranging from 75% to 80% after 20 days of incubation. Our results illustrate the potential risk linked to the use of an antagonistic bacterial agent to manage fumonisin contamination, while emphasizing the potential use of bacterial metabolites to counteract fumonisin accumulation in kernels.< Réduire

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BACTÉRIE LACTIQUE ACIDE

Mots clés en anglais

LACTIC ACID BACTERIA

PEDIOCOCCUS

METABOLITE

BIOCONTROL

FUMONISIN

FUSARIUM VERTICILLIOIDES

FUSARIUM

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Impact of Pediococcus pentosaceus strain L006 and its metabolites on fumonisin biosynthesis by Fusarium verticillioides

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