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L-ARGININE SYNTHESIS BY LACTIC ACID BACTERIA

. The results of experimental and clinical studies indicate that L-arginine is a nutritionally essential amino acid for animal health. Additionally, L-arginine or L-citrulline may provide novel and effective therapies for obesity, diabetes, and the metabolic syndrome. The screening of lactic acid bacteria (LAB) strains according to L-arginine synthesis showed significant intra-species differences. The 45 strains of LAB were investigated to L-arginine synthesis capability. It was shown, that some LAB strains (52%) are able to synthesized L-arginine (mg/ml). It was shown, that among 10 strains of L. rhamnosus species, 60% of strains are able to synthesized L-arginine. Two strains Lactobacillus rhamnosus 20–12 and Lactobacillus plantarum 66 shown increasing of L-arginine during growth in both nutrient media (MRS, milk). The L. rhamnosus 20–12 and L.plantarum 66 potential probiotic strains can be used as a basis of functional food product for application in veterinary and medicine.