Перегляд за Автор "Kovtun, I."

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  • Ескіз
    Документ
    Rhamnolipids biosynthesis by Pseudomonas aeruginosa with incercase level cyclic diguanylate
    (Odesa I. I. Mechnikov National University, 2016) Semenets, Anastasiia S.; Dyachuk, A.; Kovtun, I.; Arieshkina, A.
    Surfactants constitute important class of industrial chemicals, widely used in each sector of modern industry. Stiffness environmental regulations and increase knowledge about necessity the protection of ecosystem, adduce to raising interest of biosurfactants, as possible alternative of surfactants.
  • Ескіз
    Документ
    The effect of culture media components on the change of the level of antagonistic activity of lactic acid bacteria strains
    (2019) Kovtun, I.; Vasylieva, Nataliia Yu.; Васильєва, Наталія Юріївна
    It is known that lactic acid bacteria have a pronounced antagonistic activity relative to pathogenic and opportunistic microorganisms, as well as to other species and strains of lactobacilli. The antagonism of lactic acid bacteria in relation to microorganisms is due to the formation of lactic acid and the production of other antimicrobial and antibiotic substances: lysozyme [2; 3], hydrogen peroxide [2; 4], bacteriocin [5; 6] or fatty acids [1]. The research aim was to study the effect of culture media components of various quantitative and qualitative composition on the change in the level of antagonistic activity of lactic acid bacteria.