发明公开
EP0077680A3 Heteropolysaccharide S-194, a process and culture for producing it, and compositions containing it
失效
异黄酮S-194，生产它的方法和文化，以及包含它的组合物
- 专利标题： Heteropolysaccharide S-194, a process and culture for producing it, and compositions containing it
- 专利标题（中）： 异黄酮S-194，生产它的方法和文化，以及包含它的组合物
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申请号： EP82305533申请日： 1982-10-18
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公开(公告)号： EP0077680A3公开(公告)日： 1983-06-29
- 发明人: Peik, Jerry A. , Steenbergen, Suzanna M. , Hayden, Harold R.
- 申请人： MERCK & CO. INC.
- 专利权人： MERCK & CO. INC.
- 当前专利权人： MERCK & CO. INC.
- 优先权： US313440 19811021
- 主分类号： C12P19/26
- IPC分类号： C12P19/26 ; C12P21/00 ; C12N01/20 ; C05G03/00 ; C12R01/05 ; C08L05/00
摘要：
A novel polysaccharide S-194 is disclosed composed of principally carbohydrate, about 14% protein, and 9-11% O-acetyl groups. The carbohydrate portion comprises 8.8-9.2% glucuronic acid and the neutral sugars glucose and rhamnose in the approximate molar ratio 4:1. This polysaccharide is produced by a new Alcaligenes species ATCC 31961, in a suitable fermentation medium. It is of particular use in suspension fertilizers, although other uses involving increasing the viscosity of aqueous systems are also contemplated.
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