Control of methionine content in photographic grade gelatin
    1.
    发明授权
    Control of methionine content in photographic grade gelatin 失效
    摄影级明胶中甲硫氨酸含量的控制

    公开(公告)号:US5412075A

    公开(公告)日:1995-05-02

    申请号:US227171

    申请日:1994-04-13

    IPC分类号: C07K14/78 G03C1/047 C07K4/12

    摘要: The method for preparing high grade gelatin with a specific methionine content and with reduced methionine variability from batch to batch and within a single extraction includes controlling the amount of and variability of oxidant present during processing of bone stock into gelatin. Such controls include control of oxidant concentration and range in process water, control of volume of process water used in gelatin-making process and restriction of the range of gelatin extracts used in the product gelatin. Once the aim level of oxidant has been set, the total range of oxidant around the set point should be less than 220 meq per 100 kg dry bone.

    摘要翻译: 用于制备具有特定甲硫氨酸含量并且具有降低的甲硫氨酸变异性的批次和单次提取的高级明胶的方法包括控制在将骨料加工成明胶期间存在的氧化剂的量和变异性。 这样的控制包括控制氧化剂浓度和工艺水中的范围,控制明胶生产过程中使用的工艺水的体积以及限制产品明胶中使用的明胶提取物的范围。 一旦设定了氧化剂的目标水平,设定点周围的氧化剂的总范围应小于每100 kg干骨中的220meq。