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    • 4. 发明授权
    • Polysaccharide gum and process for its manufacture
    • 多糖胶及其制造方法
    • US06881838B2
    • 2005-04-19
    • US10152873
    • 2002-05-21
    • James M. GaddyPenelope A. Patton
    • James M. GaddyPenelope A. Patton
    • C08B37/00C08B37/04C08B37/06C07H1/00C07H1/04C07H1/06
    • C08B37/0003C08B37/0033
    • Processes are disclosed for the purification and recovery of polysaccharide gums from an aqueous solution, particularly xanthan gum from a fermentation broth. An aqueous solution of at least one polysaccharide gum is mixed with a non-solvent stream comprising water and a subprecipitant level of a non-solvent of the polysaccharide gum. The mixture is concentrated to increase the polysaccharide gum concentration, and optionally undergoes a heat treatment. Additional non-solvent is added to the concentrated mixture to precipitate the polysaccharide gum. The precipitated gum is dried after being separated from the liquid component of the mixture. The removed liquid component can be recycled to the earlier step in the process in which the polysaccharide gum solution is mixed with the non-solvent stream.
    • 公开了用于从水溶液,特别是发酵液中的黄原胶纯化和回收多糖树胶的方法。 将至少一种多糖胶的水溶液与包含水和亚沉淀物水平的多糖胶的非溶剂的非溶剂流混合。 将混合物浓缩以增加多糖胶浓度,并任选进行热处理。 向浓缩的混合物中加入另外的非溶剂以沉淀多糖胶。 从混合物的液体组分中分离出沉淀的胶状物。 在多糖胶溶液与非溶剂流混合的过程中,去除的液体组分可以再循环到较早的步骤。
    • 5. 发明授权
    • Polysaccharide gum and process for its manufacture
    • 多糖胶及其制造方法
    • US07816515B2
    • 2010-10-19
    • US10945505
    • 2004-09-20
    • James M. GaddyPenelope A. Patton
    • James M. GaddyPenelope A. Patton
    • C08B37/00C07H1/00C07H1/06C07H1/08
    • C08B37/0003C08B37/0033
    • Processes are disclosed for the purification and recovery of polysaccharide gums from an aqueous solution, particularly xanthan gum from a fermentation broth. An aqueous solution of at least one polysaccharide gum is mixed with a non-solvent stream comprising water and a subprecipitant level of a non-solvent of the polysaccharide gum. The mixture is concentrated to increase the polysaccharide gum concentration, and optionally undergoes a heat treatment. Additional non-solvent is added to the concentrated mixture to precipitate the polysaccharide gum. The precipitated gum is dried after being separated from the liquid component of the mixture. The removed liquid component can be recycled to the earlier step in the process in which the polysaccharide gum solution is mixed with the non-solvent stream.
    • 公开了用于从水溶液,特别是发酵液中的黄原胶纯化和回收多糖树胶的方法。 将至少一种多糖胶的水溶液与包含水和亚沉淀物水平的多糖胶的非溶剂的非溶剂流混合。 将混合物浓缩以增加多糖胶浓度,并任选进行热处理。 向浓缩的混合物中加入另外的非溶剂以沉淀多糖胶。 从混合物的液体组分中分离出沉淀的胶状物。 在多糖胶溶液与非溶剂流混合的过程中,去除的液体组分可以再循环到较早的步骤。