Bacillus velezensis Lnu-21 and application thereof in nano-silver synthesis

The invention discloses bacillus velezensis Lnu-21 and an application of the bacillus velezensis Lnu-21 in synthesis of nano-silver, and the bacillus velezensis Lnu-21 and the application of the bacillus velezensis Lnu-21 in synthesis of nano-silver. The preservation number of the strain is CGMCC (C...

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Hauptverfasser:	ZHOU XINYU, ZHENG FANGLIANG, WANG XIANGYU, WANG XIANGNA, ZOU YAOYUAN, FU LIN, QI HAISHI, HAN CHUANYU, ZHU CHUNYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PROCESSES USING MICROORGANISMS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention discloses bacillus velezensis Lnu-21 and an application of the bacillus velezensis Lnu-21 in synthesis of nano-silver, and the bacillus velezensis Lnu-21 and the application of the bacillus velezensis Lnu-21 in synthesis of nano-silver. The preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) NO.29565, and the strain has the capability of synthesizing nano-silver and can catalyze an AgNO3 solution to form nano-silver. Specific bioactive components secreted by bacillus velezensis in an acellular supernatant react with a silver nitrate aqueous solution to obtain sphere-like nano-silver particles which are uniformly distributed in the range of 5-25nm in size and excellent in dispersity; the method has the advantages of low production cost, environmental protection, mild reaction conditions and no need of adding any chemical substance as a reducing agent and a capping agent in the reaction process, and can be applied to the pharmaceutical industry, the