Process for obtaining sorbitol and gluconic acid by fermentation, and
cell material suitable for this purpose
    2.
    发明授权
    Process for obtaining sorbitol and gluconic acid by fermentation, and cell material suitable for this purpose 失效
    通过发酵获得山梨糖醇和葡萄糖酸的方法,以及适用于该目的的细胞材料

    公开(公告)号:US5017485A

    公开(公告)日:1991-05-21

    申请号:US448334

    申请日:1989-12-11

    IPC分类号: C12P7/18 C12P7/58

    CPC分类号: C12P7/18 C12P7/58 Y10S435/822

    摘要: A process is disclosed for obtaining sorbitol and gluconic acid, or gluconate, by fermentation in aqueous glucose/fructose mixtures. Zymomonas mobilis cells are used which have been permeabilized by the freeze technique and which have preferably been obtained by freezing cell centrifugates of pH 6 to 7 at about -20.degree. C., and thawing at room temperature. Cell concentrations of 20 to 60 g of cell dry matter of permeabilized cells/l are preferably used for the fermentation. By using cells which have been permeabilized by freezing and thawing, a considerably higher conversion rate of glucose/fructose into sorbitol and gluconic acid, or gluconate, is achieved.

    摘要翻译: 公开了通过在水性葡萄糖/果糖混合物中发酵获得山梨糖醇和葡萄糖酸或葡萄糖酸盐的方法。 使用通过冷冻技术透化的运动发酵单胞菌细胞,其优选通过在约-20℃下冷冻pH6-7的细胞离心液并在室温下解冻获得。 细胞浓度为20〜60g的透化细胞/ l细胞干物质优选用于发酵。 通过使用通过冷冻和解冻而透化的细胞,实现了相当高的葡萄糖/果糖转化为山梨醇和葡糖酸或葡萄糖酸的转化率。

    Method For the Fermentative Production of L-Valine and Suitable Microorganism
    6.
    发明申请
    Method For the Fermentative Production of L-Valine and Suitable Microorganism 失效
    L-缬氨酸和合适的微生物发酵生产方法

    公开(公告)号:US20080153139A1

    公开(公告)日:2008-06-26

    申请号:US11663984

    申请日:2006-04-06

    IPC分类号: C12P13/08 C12N1/21

    CPC分类号: C12P13/08 C12N9/1096

    摘要: The invention relates to a method for producing L-valine and to a suitable microorganism. The inventive method is characterized by preferably enhancing the transaminase C activity of a coryneform bacterium, especially Corynebacteriuim glutamicum. The organisms so modified have a yield in L-valine which is 35.8% higher than that of non-modified organisms.

    摘要翻译: 本发明涉及L-缬氨酸和合适微生物的生产方法。 本发明的方法的特征在于优选增强棒状细菌,特别是谷氨酸棒杆菌(Corynebacteriuim glutamicum)的转氨酶C活性。 如此修饰的生物体在L-缬氨酸中的产率高于非改性生物体的35.8%。