Genetic control of acetylation and pyruvylation of xanthan based polysaccharide polymers
    1.
    发明授权
    Genetic control of acetylation and pyruvylation of xanthan based polysaccharide polymers 失效
    黄原胶多糖聚合物的乙酰化和丙酮酸化的遗传控制

    公开(公告)号:US06316614B1

    公开(公告)日:2001-11-13

    申请号:US08475823

    申请日:1995-06-07

    IPC分类号: C08B3700

    摘要: Variant xanthan gums are provided which include a water-soluble polysaccharide polymer comprising repeating pentamer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:2:1, and a water-soluble polysaccharide polymer comprising repeating tetramer units having a D-glucose:D-mannose:D-glucuronic acid ratio of about 2:1:1. The D-glucose moieties are linked in a beta-[1,4] configuration. The inner D-mannose moieties are linked in an alpha-[1,3] configuration, generally to alternate glucose moieties. The D-glucuronic acid moieties are linked in a beta-[1,2] configuration to the inner mannose moieties. The outer mannose moieties are linked to the glucuronic acid moieties in a beta-[1,4] configuration. Processes for preparing the polysaccharide polymers are also provided.

    摘要翻译: 提供变体黄原胶,其包括水溶性多糖聚合物,其包含具有约2:2:1的D-葡萄糖:D-甘露糖:D-葡萄糖醛酸比率的重复五聚体单元和包含重复四聚体的水溶性多糖聚合物 具有D-葡萄糖:D-甘露糖:D-葡萄糖醛酸比例为约2:1:1的单元。 D-葡萄糖部分以β-(1,4)构型连接。 内部D-甘露糖部分以α-[1,3]构型连接,通常为交替的葡萄糖部分。 D-葡萄糖醛酸部分以β-(1,2)构型连接到内部甘露糖部分。 外部甘露糖部分以β-(1,4)构型与葡萄糖醛酸部分连接。 还提供了制备多糖聚合物的方法。