会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Methods for purifying chitosan
    • 壳聚糖的纯化方法
    • US06896809B2
    • 2005-05-24
    • US10326462
    • 2002-12-20
    • Rui Qing QianRobert W. Glanville
    • Rui Qing QianRobert W. Glanville
    • C08B37/08B01D11/00
    • C08B37/003
    • One method for purifying a chitosan starting material includes contacting it with at least one treatment agent selected from a protein-complexing agent, a metal-chelating agent, and a metal-complexing agent under pH conditions effective for forming a water insoluble chitosan precipitate and at least one water soluble material selected from a water soluble protein complex, a water soluble metal chelate, and a water soluble metal complex. Another variant involves solubilizing the chitosan starting material in an aqueous solution to produce an intermediate chitosan material. The intermediate chitosan material is contacted with a deproteinization agent and/or a demetallization agent under pH conditions effective for forming a water insoluble chitosan precipitate and at least one water soluble material that includes the pre-existing impurity. In both methods, the water insoluble chitosan precipitate and the water soluble material are separated resulting in a purified chitosan material.
    • 纯化壳聚糖起始材料的一种方法包括使其与选自蛋白质络合剂,金属螯合剂和金属络合剂的至少一种处理剂在有效形成水不溶性壳聚糖沉淀的pH条件下接触,并在 选自水溶性蛋白质复合物,水溶性金属螯合物和水溶性金属络合物中的至少一种水溶性物质。 另一个变体包括将壳聚糖起始材料溶解在水溶液中以产生中间体壳聚糖材料。 中间体壳聚糖材料在有效形成水不溶性壳聚糖沉淀物和至少一种包含预先存在的杂质的水溶性材料的pH条件下,与脱蛋白剂和/或脱金属剂接触。 在两种方法中,分离水不溶性壳聚糖沉淀物和水溶性物质,得到纯化的壳聚糖材料。