COMPOSITION OF NUTRIENT MEDIUM FOR CULTURING ACETOBACTER XYLINUM FOR BACTERIAL CELLULOSE PREPARING (VERSIONS) Russian patent published in 2002 - IPC

FIELD: biotechnology, microbiology. SUBSTANCE: invention relates to the field of microbiological preparing cellulose used in medicine, cosmetics and technology. Compositions of the proposed nutrient medium differ from the known ones as they use plant hydrolyzate, industrial wood hydrolyzate, caustic from paper and pulp manufacture, nonstandard fruit-berry raw as the source of carbon and nitrogen. Peptone is used as a compensating agent of nitrogen deficiency and yeast extract is used as a source of vitamins. Brewage wort is used as an accelerating agent of multiplication and growth of microorganisms and ethanol is used as an accelerating agent of cellulose biosynthesis. Balanced composition of nutrient medium for culturing A. xylinum ensures to obtain high yields of bacterial cellulose showing unique properties as compared with vegetable cellulose and to utilize partially industrial waste. EFFECT: improved properties of medium. 25 cl, 1 tbl, 52 ex