Preparation process of optically active .alpha.-aminated acids by
biological hydrolysis of nitriles
    3.
    发明授权
    Preparation process of optically active .alpha.-aminated acids by biological hydrolysis of nitriles 失效
    通过生物水解腈的光学活性α-氨基酸的制备方法

    公开(公告)号:US4366250A

    公开(公告)日:1982-12-28

    申请号:US209402

    申请日:1980-09-24

    CPC分类号: C12P13/04 C12N9/78 C12N9/80

    摘要: This process for preparing L .alpha.-amino-acid is characterized in that the corresponding racemic .alpha.-amino-acid is hydrolysed in liquid phase in a free form or in the form of a salt, by an agent containing an L-stereospecific amidase and in that the L .alpha.-amino-acid obtained is separated from the D .alpha.-amino-amid unhydrolysed. This process is appropriate for the preparation of optically active natural amino-acids.

    摘要翻译: PCT No.PCT / FR80 / 00008 Sec。 371日期1980年9月24日 102(e)1980年9月19日PCT申请人1980年1月24日PCT公布。 出版物WO80 / 01571 PCT 日本1980年8月7日。制备Lα-氨基酸的该方法的特征在于相应的外消旋α-氨基酸以游离形式或盐形式在液相中以含有 L-立体定向酰胺酶,并且所获得的Lα-氨基酸与未水解的Dα-氨基 - 酰胺分离。 该方法适用于制备光学活性天然氨基酸。

    Process for adjusting the alcohol content of wines or alcoholic
beverages and installation for its implementation
    6.
    发明授权
    Process for adjusting the alcohol content of wines or alcoholic beverages and installation for its implementation 失效
    调整葡萄酒或含酒精饮料酒精含量的方法及其实施

    公开(公告)号:US4806366A

    公开(公告)日:1989-02-21

    申请号:US878528

    申请日:1986-06-20

    CPC分类号: C12G1/00 C12G3/085

    摘要: The invention concerns a product for adjusting the degree of alcohol of wines or alcoholic beverages. According to the invention, this process consists in resorting to two coupled reverse osmosis systems each comprising a tank for supplying the product to be processed upstream from a reverse osmosis cell, in equipping the two reverse osmosis cells P and I with membranes with a distinctly different permeability to ethanol, in withdrawing the permeate originating from said cell P, in sending it into said supply reservoir upstream from said cell I, in withdrawing the permeate originating from said cell I and in sending it into the supply tank upstream from cell P, whilst recovering the corresponding concentrates X and Y.

    摘要翻译: 本发明涉及一种用于调节葡萄酒或含酒精饮料的酒精度的产品。 根据本发明,该方法包括采用两个连接的反渗透系统,每个系统包括用于向反渗透池的上游供应待处理产品的罐,以使两个反渗透池P和I具有明显不同的膜 对乙醇的渗透性,在从所述细胞P中取出来自所述细胞P的渗透物时,将其从所述细胞I上游送入所述供应储器中,以从所述细胞I中提取来自所述细胞I的渗透物并将其从细胞P向上游送入所述供应罐,同时 回收相应的浓缩物X和Y.