Phytochemical Profile, Antioxidant Potential, Antimicrobial Activity, and Cytotoxicity of Dry Extract from Mill.

Dry rose extract (DRE) obtained industrially by aqueous ethanol extraction from flowers and its phenolic-enriched fraction, obtained by re-extraction with ethyl acetate (EAE) were the subject of this study. H NMR of DRE allowed the identification and quantitation of fructose and glucose, while the combined use of HPLC-DAD-ESIMS and HPLC-HRMS showed the presence of 14 kaempferol glycosides, 12 quercetin glycosides, 4 phenolic acids and their esters, 4 galloyl glycosides, 7 ellagitannins, and quinic acid. In addition, the structures of 13 of the flavonoid glycosides were further confirmed by NMR.

Antagonistic Interactions of Lactic Acid Bacteria from Human Oral Microbiome against and .

Oral probiotic lactic acid bacteria can exhibit antagonistic activities against pathogens associated with diseases in the oral cavity. Therefore, twelve previously isolated oral strains were assessed for antagonistic evaluation against selected oral test microorganisms and . Two separate co-culturing analyses were performed, where all tested strains showed the presence of antagonistic activity and four strains, N 2, TC 3-11, and NA 2-2, and NN 1, significantly inhibited by 3-5 logs.