Continuous aqueous process for the isolation of hemicellulose from corn hulls and other plant hulls
    9.
    发明申请
    Continuous aqueous process for the isolation of hemicellulose from corn hulls and other plant hulls 审中-公开
    用于从玉米壳和其他植物外壳中分离半纤维素的连续含水方法

    公开(公告)号:US20060029702A1

    公开(公告)日:2006-02-09

    申请号:US11196504

    申请日:2005-08-04

    IPC分类号: A23L1/216

    摘要: Various methods of obtaining hemicellulose from plant sources are provided. In one embodiment, hemicellulose is obtained from plant hulls by first jet cooking a plant hull slurry to remove starch from the plant hulls, and subsequently jet cooking the destarched plant hull slurry to extract a solubilzed hemicellulose. In an alternative embodiment, hemicellulose may be obtained by forming a plant hull slurry, adding sufficient lime to enable starch gelatinization and separation of hemicellulose in a single jet cooking step, jet cooking the slurry, and separating solubilized hemicellulose from insolubles. Surprisingly, the yield of hemicellulose is high, and the starch from the plant hulls will gelatinize but will not become hydrolyzed, such that the formation of reducing sugars is substantially avoided.

    摘要翻译: 提供从植物来源获得半纤维素的各种方法。 在一个实施方案中,半纤维素通过首先喷射蒸煮植物船体浆料以从植物壳体中除去淀粉而从植物壳体获得,随后喷射蒸煮破坏的植物壳体浆料以提取溶解的半纤维素。 在替代实施方案中,半纤维素可以通过形成植物壳浆料,添加足够的石灰来使淀粉糊化和在单一喷射蒸煮步骤中分离半纤维素,喷射蒸煮浆料,以及从不溶物中分离溶解的半纤维素。 令人吃惊的是,半纤维素的产率高,来自植物壳的淀粉会凝胶化,但不会水解,从而基本上避免了还原糖的形成。