基本信息:
- 专利标题： 一株发酵小麦麸皮合成胞外多糖的菌株
- 专利标题（英）：STRAIN FOR SYNTHESIZING EXOPOLYSACCHARIDE BY MEANS OF FERMENTING WHEAT BRAN
- 申请号：PCT/CN2021/120703 申请日：2021-09-26
- 公开(公告)号：WO2023000492A1 公开(公告)日：2023-01-26
- 发明人： 韩瑨 , 刘振民 , 吴正钧 , 郭诚笑 , 游春苹
- 申请人： 光明乳业股份有限公司
- 申请人地址： 中国上海市闵行区吴中路578号, Shanghai 201103
- 专利权人： 光明乳业股份有限公司
- 当前专利权人： 光明乳业股份有限公司
- 当前专利权人地址： 中国上海市闵行区吴中路578号, Shanghai 201103
- 代理机构： 北京东正专利代理事务所（普通合伙）
- 优先权： CN202110837446.X 2021-07-23
- 主分类号： C12N1/20
- IPC分类号： C12N1/20 ; C12P19/04 ; A23L33/125 ; A61P37/02 ; C12R1/01
Provided in the present invention is a strain of Paenibacillus sp. for synthesizing an exopolysaccharide by means of fermenting wheat bran, and the deposit number of the strain is CGMCC NO. 8333; the exopolysaccharide synthesized has a weight-average molecular weight of 300,800-451,200 daltons, and is an acidic heteropolysaccharide composed of glucuronic acid, glucose and fucose in a molar ratio of (1.55-1.60):1:(1.63-1.72); and a main chain of the exopolysaccharide is composed of 1,3-linked glucose residues, 1,3-linked fucose residues, 1,3,4-linked fucose residues and 1,4-linked glucuronic acid residues, a branch point is located at an O-4 position of the 1,3,4-linked fucose residue, and a branch chain is composed of terminal-linked glucuronic acid residues and the exopolysaccharide is composed of repeating structural units as shown in formula I. In addition, the exopolysaccharide also has a certain immunoregulation effect, and has good application prospects in food, medicine and related fields.