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Microbial strains with a unique combination of technological and bioactive properties are preferred for industrial applications. The present study was conducted to evaluate the potential use of  Enterococcus mundtii  QAUEM2808 (NCBI Accession Number:  LSMC ) in milk fermentation. This strain was isolated from Dahi, an indigenous fermented milk product of South-East Asia. The  in vitro  study confirmed the acidification ability as well as the proteolytic, cellulolytic, and amylolytic enzyme activities of this strain. It also produced a substantial amount of the folate in laboratory media and no physiological dysfunctions in laboratory animals was observed in feeding trials. All these properties were confirmed by  in silico  genome analysis. The  Enterococcus mundtii  QAUEM2808 genome consisted of a single, circular chromosome comprising 2,957,300-bp, 2,587 genes with GC content of 38.5%. Moreover, 16t RNAs, 1, 3 (16S, 23S) rRNAs, 4 ncRNAs, and 91 pseudo genes were also predicted. The majority of genome encode genes for protein, amino acids, carbohydrate, cell wall DNA and RNA metabolisms including all genes required for conversion of lactose to lactic acid. It also exhibited antimicrobial activity against  E. coli  ATCC 10536,  S. aureus  ATCC 6538,  P. aeruginosa  ATCC 9027, and  L. monocytogenes  ATCC 13932 and was found to be sensitive to commonly used antibiotics. The  in silico  analysis revealed the presence of genes for mundaticin and enterocin production, and CRISPER regions, however, the genes for antibiotic resistance were absent. No genes related to the pathogenicity island and prophages were detected by genome mining. Therefore, it could be inferened that  Enterococcus mundtii  QAUEM2808 has the potential to be used in milk fermentation as adjunct culture.

Genomic and Functional Characterization of Enterococcus mundtii QAUEM2808, Isolated From Artisanal Fermented Milk Product Dahi