The effect of carbohydrates on the pigmentation of strain Arthrobacter agilis wb28

The article presents the results of a study on influence carbon sources, such as carbohydrates and sugar alcohols, growth pigmentation Arthrobacter agilis wb28 strain isolated from wheat bran. Nutrient media were seeded with A. cells by pricking. cultivation was carried out at temperature 28 ± 1°C for 7 days. presence determined turbidity medium, film gas formation. It shown that are able to consume agar-agar components sole source synthesize metabolites shift pH medium alkaline region Hiss which is designed assess saccharolytic ability microorganisms. found alkalinization during characteristic in mainly oligosaccharides, polysaccharide, alcohol, exception fructose monosaccharide. Media containing monosaccharides, glucose, arabinose, xylose, galactose not effective development pigment As result rhamnose mannitol, acidification occurs, it being more pronounced mannitol. Pigmentation also studied develops glucose comparison known strains genus – pigment-formers, greater extent forms fructose. Gas formation all used detected. More preferred carbohydrate sources disaccharides sucrose, lactose, maltose, monosaccharide, raffinose trisaccharide.