Streptomyces and application thereof
The invention discloses a streptomyces sp. NK-49 and an application thereof; and the application is a method for fermenting, cultivating, separating and purifying Epsilon-polylysine. The method comprises the following steps: firstly, picking a ring of spores from streptomyces sp. NK-49 which is stor...
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| creator | XIE CHENGENG GENG WEITAO YANG CHAO ZHAO RUOZHU SONG CUNJIANG WANG XIAOMENG LI YIXIANG WANG SHUFANG |
| description | The invention discloses a streptomyces sp. NK-49 and an application thereof; and the application is a method for fermenting, cultivating, separating and purifying Epsilon-polylysine. The method comprises the following steps: firstly, picking a ring of spores from streptomyces sp. NK-49 which is stored on a Beinart inclined plane, and inoculating the spores serving as seeds in a Gao 1th culture medium for activated culture within 20 to 36 h; inoculating 5 to 15 percent of seed liquid to a synthetic medium taking amylolysis sugar or amylolysis sugar and glycerol as a carbon source, and shaking a flask for fermentation and culture for 48 to 96 h; after fermentation, conducting 6000 to 10000 rpm centrifugation on the fermentation liquid to remove thallus, collecting supernate, regulating the pH of the supernate to 8 by utilizing 5M NaOH solution, and filtering to removing deposited hetero proteins; utilizing weak acid type cation exchange resin to adsorb and remove Epsilon-polylysine molecules from the supernate |
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NK-49 and an application thereof; and the application is a method for fermenting, cultivating, separating and purifying Epsilon-polylysine. The method comprises the following steps: firstly, picking a ring of spores from streptomyces sp. 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NK-49 which is stored on a Beinart inclined plane, and inoculating the spores serving as seeds in a Gao 1th culture medium for activated culture within 20 to 36 h; inoculating 5 to 15 percent of seed liquid to a synthetic medium taking amylolysis sugar or amylolysis sugar and glycerol as a carbon source, and shaking a flask for fermentation and culture for 48 to 96 h; after fermentation, conducting 6000 to 10000 rpm centrifugation on the fermentation liquid to remove thallus, collecting supernate, regulating the pH of the supernate to 8 by utilizing 5M NaOH solution, and filtering to removing deposited hetero proteins; utilizing weak acid type cation exchange resin to adsorb and remove Epsilon-polylysine molecules from the supernate</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | 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 |
| title | Streptomyces and application thereof |
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