Vitamin K2 high-yielding strain
A technology for high-yielding strains and vitamins, applied in bacteria, microorganisms, microorganism-based methods, etc., can solve the problems of reduced affinity between prothrombin and calcium ions, and obstruction of the coagulation process.
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[0021] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0022] Such as figure 1 Shown, vitamin K of the present invention 2 The high-yield strain is obtained by screening the mutant BS-53 protoplast of bacillus natto BS-5 and the protoplast of bacillus natto CICC10262 after fusion.
[0023] In the present invention, the mutant BS-53 is obtained by compound mutagenesis of Bacillus natto BS-5 through ultraviolet and nitroso arc.
[0024] The Bacillus natto BS-5 strain is provided by the Microbiology Laboratory of the School of Food Science and Technology, Hefei University of Technology, and the Bacillus natto CICC10262 is provided by the China Microorganism Culture Collection and Management Center.
[0025] The Bacillus natto BS-5 bacterial strain is a kind of Bacillus subtilis Gram that can produce ...
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