ISSN 2074-9414 (Print),
ISSN 2313-1748 (Online)

Study of biochemical and morphological properties of strains of bacteria genus

Abstract
The results of the study of biochemical and morphological properties of strains of bacteria of the genus are presented. The possibility of using disks with carbohydrates to determine the species of the studied strains of the in their ability to ferment disaccharides is shown. The study of isolated strain morphology by means of a phase-contrast microscope has shown that the culture is represented by gram-positive rods assembled in pairs or arranged separately. The optimal qualitative and quantitative composition of selective nutrient media for lactic acid bacteria culturing has been chosen. Studying the properties of the saccharolytic strains of the it has been found that bacteria ferment lactose completely, and some strains are able to assimilate sucrose, maltose, and mannose.
Keywords
Strains, lactic acid bacteria, , biochemical identification, morphological properties, cultivation, growth medium
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