Effect of antimicrobial compounds of some lactic acid bacteria on growth and aflatoxins production by Aspergillus flavus

ABSTRACT

Effect of antimicrobial compounds of Lc. Thermophilus, Cit+ Lc. lactis, Lact. bulgaricus and Lact. casei on aflatoxins production and growth of Aspergillus flavus beside pH changes in growth media during 8 days incubation were determined. Addition of the antimicrobial compounds of lactic acid bacteria strains inhibited aflatoxins M1 and M2 completely and the total aflatoxins decreased markedly in the presence of these antimicrobial compounds. The increase in the antimicrobial compounds was correlated with increase in total aflatoxins inhibition. The effect of antimicrobial compounds ratios and intervals of incubation time had significant differences on aflatoxins production