The results show that seven types of N-nitrosamines: N-nitrosodiethylamine (NDEA), N-Nitrosopiperidine (NPIP), N-nitrosodimethylamine (NDMA), N-nitrosopyrrolidine (NPYR), N-nitrosodipropylamine (NDPA), N-nitrosodibutylamine (NDBA) and N-nitrosodiphenylamine (NDphA) were reduced after heat treatment of pork steaks marinated with L. plantarum MI-LP1, S. carnosus LM-SC1, S. vitulinus LM-SV1. Selected LAB suppressed the formation of putrescine and spermine, lowered acid and peroxide values, which were significantly lower than in the control samples, then P≤0.05 in all cases. The nitrites and nitrates amounts were significantly decreased in pork steaks samples marinated with L. plantarum MI-LP1 and S. carnosus MI-SV1 strains. These results presented that selected lactic acid bacteria could be used for marinating pork steaks to improve quality characteristics and reduce N-nitrosamine formation during grilling.
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