The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
Sep. 28, 2009
Jing Xu, Shanghai, CN;
Yi Chen, Shanghai, CN;
Xiaoming Ji, Shanghai, CN;
Xiaoliang Gao, Shanghai, CN;
Shidong Liu, Shanghai, CN;
Zhaoli Zhang, Shanghai, CN;
Jing Xu, Shanghai, CN;
Yi Chen, Shanghai, CN;
Xiaoming Ji, Shanghai, CN;
Xiaoliang Gao, Shanghai, CN;
Shidong Liu, Shanghai, CN;
Zhaoli Zhang, Shanghai, CN;
Shanghai Techwell Biopharmaceutical Co., Ltd., Shanghai, CN;
Abstract
High yield antibiotics producing fungus strain, preparation method and use thereof are provided. The fungus strain is a mutant derived from, and deposited in CGMCC with the accession number of CGMCC 2933. The preparation method concludes following steps: (a) mixing the culture media ofstrain ATCC 20957 with nitrosoguanidine, and obtaining mixture a; (b) mixing lywallzyme with the mixture a, and obtaining protoplasts; (c) regenerating the protoplasts, and obtaining single clones; and (d) culturing the single clones, then obtaining the mutant strain. This fungus strain has stable genetic and producing property, produces little impurities in fermentation, and is suitable to be used in industry.