Title: Aspergillus niger capable of producing acidic beta-mannase and its fermentation and method for producing manno-oligose
Application Number: 01144782 Application Date: 2001.12.25
Publication Number: 1428415 Publication Date: 2003.07.09
Approval Pub. Date: 2006.09.06 Granted Pub. Date: 2006.09.06
International Classifi-cation: C12N1/14,C12N9/42,C12P19/00,C12R1/685
Applicant(s) Name: Beijing Ruisi Jiaye Feed Application Technology Re Address: 100081
Inventor(s) Name: Ding Hongbiao, Ma Yanhe
Attorney & Agent: guan chang
Abstract:
     The present invention is aimed at providing an aspergillus niger capable of secreting acid beta-mannase. The aspergillus niger provided by said invention is the aspergillus niger AS2710 CGMCC No.0658 and its mutant or variant. The fermentation process of AS2710 includes the following steps: A. preparing fermentation strain; making the slant cultured AS2710 undergo the processes of liquid strain culture and first-stage liquid culture and at least second-stage liquid culture to obtain fermentation strain; and B. utilizing the above-obtained strain to make fermentation and production of acid beta-mannase.
Time: 3
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