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The bacteriocins secreted by the cells of two B. subtilis strains have been isolated by hydrophobic or ion-exchange chromatography on CMC followed by purification on membranes. The yields of electrophoretically pure products were ~75 % of the total activity in the supernatant of culture fluid...
Nanocomplexes based on a modern Taunit nanosorbent with polyene antibiotics (amphotericin B, nystatin A1, and natamycin) widely used in medical practice were obtained for the first time; their antifungal activity was studied. It was demonstrated that the Taunit–nystatin A1 complex is active as...
The article discusses recent advances in the study of the metabolism of Aspergillus niger, a producer of citric acid, and some of its characteristics that may be responsible for the overproduction of citric acid. The paper is designed so that the entire process of citrate biosynthesis, from the...
The review describes the classification, analysis, characteristics, and prospects of the application of various types of matrixes, of natural or synthetic origin, for cell biotechnology. Particular attention is paid to three-dimensional structures designed on the basis of extracellular matrix...
The influence of natural organic substances and iron hydroxides on in vitro biofilm formation by groundwater microorganisms was assessed. The combination of these compounds stimulates the formation of large mucosal biofilms that absorb insoluble iron hydroxide particles. Organic substances are...
Spore accumulation in Brevibacillus laterosporus in a liquid nutrient medium under optimal conditions during stationary cultivation was investigated. The structure of floating biofilms was studied by transmission and scanning electron microscopy. It was shown that B. laterosprus cells formed a...
The screening of lactic-acid polysaccharide-synthesizing the bacteria, components of kefir grains, has shown that about 60% of isolates can synthesize exopolysaccharides (EPSs). We selected the most actively synthesizing EPSs cultures during development on a medium with lactose or sucrose:...
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