MICROBIAL CONVERSION OF SUGAR ACIDS AND MEANS USEFUL THEREIN
    8.
    发明公开
    MICROBIAL CONVERSION OF SUGAR ACIDS AND MEANS USEFUL THEREIN 有权
    糖酸的微生物转化确保两有用资源

    公开(公告)号:EP1885848A1

    公开(公告)日:2008-02-13

    申请号:EP06743559.4

    申请日:2006-05-29

    IPC分类号: C12N9/08 C12N15/53 C12P7/00

    摘要: A DNA molecule comprising a fungal gene encoding an enzyme protein capable of converting L-galactonic acid into L-threo-3-deoxy-hexulosonic acid has been cloned and heterologously expressed. The enzyme is involved in the metabolic conversion of sugar acids, which are present in biological waste material such as sugar beet pulp and other pectin comprising material. A microorganism genetically modified to effectively express said enzyme may be used in fermenting biomaterial to desired end products such as ethanol. Alternatively, microorganisms in which the gene has been inactivated may be used to produce L- galactonic acid, which accumulates when the expression of the gene is prevented.

    PROCESS FOR PRODUCING ETHANOL
    9.
    发明公开
    PROCESS FOR PRODUCING ETHANOL 有权
    生产乙醇的方法

    公开(公告)号:EP1751296A1

    公开(公告)日:2007-02-14

    申请号:EP05748648.2

    申请日:2005-06-06

    IPC分类号: C12P7/10

    CPC分类号: C12P7/10 Y02E50/16 Y02E50/17

    摘要: A process for producing ethanol from a fibrous lignocellulosic raw material. After pre-treatment of the raw material, the fibrous fraction is first hydrolysed at high consistency and then the modified material is subjected simultaneously to continued hydrolysis with a cellulase and to ethanol fermentation in a fermentation mixture. Fermentation is continued to convert an essential portion of the available cellulose into ethanol, then a liquid fraction containing solubilized hemicelluloses is added to the fermentation mixture and fermentation continued. By means of the invention, high fermentation rates, high ethanol concentrations and low ethanol production costs can be attained.

    A METHOD FOR DECREASING THE FOAM FORMATION DURING CULTIVATION OF A MICROORGANISM
    10.
    发明授权
    A METHOD FOR DECREASING THE FOAM FORMATION DURING CULTIVATION OF A MICROORGANISM 有权
    VERFAHREN ZUR VERMINDERUNG DER SCHAUMBILDUNGWÄHRENDDER KULTIVIERUNG EINES MIKROORGANISMUS

    公开(公告)号:EP1204738B1

    公开(公告)日:2006-01-25

    申请号:EP00954690.4

    申请日:2000-08-21

    IPC分类号: C12N1/14 C12N15/80 C12N1/15

    摘要: This invention relates to a method for decreasing the foam formation during cultivation of a microorganism and to a method for producing an enhanced amount of a product of interest. The method comprises that the microorganism is modified in such a way that the microorganism does not produce an essential amount of at least one of the proteins, polypeptides or peptides associated with foam formation during cultivation of the unmodified microorganism. In particular the method comprises that the microorganism is modified not to produce an essential amount of amphipathic or hydrophobic proteins, polypeptides or peptides.

    摘要翻译: 本发明涉及一种降低微生物培养过程中泡沫形成的方法及其生产方法。 该方法包括微生物的修饰,使得微生物在培养未修饰的微生物期间不产生必需量的与泡沫形成相关的至少一种蛋白质,多肽或肽。 特别地,该方法包括修饰微生物不产生必需量的两亲或疏水性蛋白质,多肽或肽。