Process for preparing D-mannitol
    1.
    发明授权
    Process for preparing D-mannitol 失效
    D-甘露糖醇的制备方法

    公开(公告)号:US4083881A

    公开(公告)日:1978-04-11

    申请号:US749623

    申请日:1976-12-13

    CPC分类号: C07C31/26 C07H3/02

    摘要: A D-glucose solution is added molybdic acid compound thereto and heated at a temperature of 110.degree.-160.degree. C with pH 2.0-4.5 to perform epimerizing reaction of D-glucose, and thereby 30-36%, based on the D-glucose, of D-mannose is formed. To the epimerized mixture thus obtained is further added glucose-isomerase to perform enzymatic isomerizing reaction of D-glucose remaining in the epimerized mixture, thereby 46% based on the remaining D-glucose is converted into D-fructose. The epimerized mixture or enzymatically isomerized mixture is subjected to catalytic hydrogenation under high pressure, and thereby is produced D-mannitol at high yield based on the initial D-glucose.

    摘要翻译: 向D-葡萄糖溶液中加入钼酸化合物,在110〜160℃的温度下,用pH2.0〜4.5进行加热,以进行D-葡萄糖的差向异构化反应,从而基于D-葡萄糖进行30-36% 的D-甘露糖。 向得到的差向异构体混合物中进一步添加葡萄糖异构酶,进行残留在差向异构化混合物中的D-葡萄糖的酶促异构化反应,由此将剩余D-葡萄糖的46%转化为D-果糖。 将差向异构化的混合物或酶促异构化的混合物在高压下进行催化氢化,从而基于初始D-葡萄糖以高产率生产D-甘露糖醇。