Process for producing high-purity oligoglucosylfructosides
    3.
    发明授权
    Process for producing high-purity oligoglucosylfructosides 失效
    生产高纯度低聚葡糖基果糖苷的方法

    公开(公告)号:US4843156A

    公开(公告)日:1989-06-27

    申请号:US692066

    申请日:1985-01-16

    CPC分类号: C07H3/06 C13K13/005

    摘要: Oligoglucosylfructosides wherein an oligoglucosylfructoside having a polymerization degree of 2 or 3 glucose units are recovered in a high purity from a feed solution additionally containing substantial amounts of higher- and lower-oligosaccharides by sequentially admitting predetermined volumes of the feed solution and water to the column of a strongly-acidic cation exchange resin in alkaline-earth metal form; sequentially separating the effluents from the column into the first fraction rich in the higher oligosaccharide, the second fraction rich in the higher oligosaccharide but highly contaiminated with the oligoglucosylfructoside, the first fraction rich in the oligoglucosylfructoside, the fourth fraction rich in the oligoglucosylfructoside but highly contaminated with the lower oligosaccharide, and the fifth fraction rich in the lower oligosaccharide; and recovering the third fraction. The second- and fourth fractions can be admitted to the column so as to decrease the amount of elution water and also to recover the high-oligoglucosylfructoside fraction in a much higher concentration and recovery yield.

    摘要翻译: 其中通过依次将预定体积的进料溶液和水顺序地加入到含有大量低聚糖的进料溶液的塔中,通过另外含有大量的高级和低级寡糖的进料溶液以高纯度从高纯度回收聚合度为2或3个葡萄糖单元的寡葡糖基果糖苷 碱土金属形式的强酸性阳离子交换树脂; 将从柱中排出的污水依次分离成富含较高寡糖的第一级分,第二级分富含高寡聚物,但与寡葡糖基果糖苷高度接触,第一级富含寡聚葡糖基果糖苷,第四级富含低聚葡糖基果糖苷但高度污染 低级寡糖,第五级富含低聚糖; 并回收第三部分。 可以将第二和第四级分进入柱,以减少洗脱水的量,并且还可以以更高的浓度和回收率获得高寡葡糖基果糖苷级分。

    Process to prepare maltose powder
    6.
    发明授权
    Process to prepare maltose powder 失效
    制备麦芽糖粉的方法

    公开(公告)号:US5112407A

    公开(公告)日:1992-05-12

    申请号:US526958

    申请日:1990-05-22

    IPC分类号: C07H3/04 C07H1/00 C13K7/00

    CPC分类号: C13K7/00

    摘要: There is provided a process to prepare maltose powder containing crystalline beta-maltose hydrate, comprising concentrating an aqueous solution of a high-purity maltose having a maltose content of at least 85% DS to a moisture content below 10 w/w %, partially crystallizing alpha-maltose in the syrup, and crystallizing beta-maltose hydrate in the same syrup while converting the resultant crystalline alpha-maltose into crystalline beta-maltose hydrate. Use of the invention enables consistently high-quality maltose powders at a reduced drying cost.