Polypeptide having D-lactate dehydrogenase activity, polynucleotide encoding the polypeptide, and process for production of D-lactic acid
    1.
    发明授权
    Polypeptide having D-lactate dehydrogenase activity, polynucleotide encoding the polypeptide, and process for production of D-lactic acid 有权
    具有D-乳酸脱氢酶活性的多肽,编码多肽的多核苷酸,以及D-乳酸的生产方法

    公开(公告)号:US08822195B2

    公开(公告)日:2014-09-02

    申请号:US13375882

    申请日:2010-06-02

    CPC分类号: C12P7/56 C12N9/0006

    摘要: Highly productive D-lactic acid fermentation uses a transformant obtained by introducing into a host cell a polynucleotide encoding a polypeptide according to any one of the following (A) to (C) in such a manner that the polypeptide is expressed, which polypeptide has a D-lactate dehydrogenase activity higher than those of conventional polypeptides: (A) a polypeptide having the amino acid sequence shown in SEQ ID NO:1 or 2; (B) a polypeptide having the same amino acid sequence as shown in SEQ ID NO:1 or 2 except that one or several amino acids are substituted, deleted, inserted and/or added, which polypeptide has a D-lactate dehydrogenase activity; and (C) a polypeptide having an amino acid sequence which has a sequence identity of not less than 80% to the amino acid sequence shown in SEQ ID NO:1 or 2, which polypeptide has a D-lactate dehydrogenase activity.

    摘要翻译: 高生产率D-乳酸发酵使用通过向宿主细胞中引入编码根据下列(A)至(C)中任一项所述的多肽的多核苷酸而获得的转化体,使得多肽表达, D-乳酸脱氢酶活性高于常规多肽的活性:(A)具有SEQ ID NO:1或2所示氨基酸序列的多肽; (B)具有与SEQ ID NO:1或2所示相同氨基酸序列的多肽,不同之处在于一个或几个氨基酸被取代,缺失,插入和/或添加,该多肽具有D-乳酸脱氢酶活性; 和(C)具有与SEQ ID NO:1或2所示的氨基酸序列具有不小于80%的序列同一性的氨基酸序列的多肽,该多肽具有D-乳酸脱氢酶活性。

    METHOD FOR PRODUCING CADAVERINE
    2.
    发明申请
    METHOD FOR PRODUCING CADAVERINE 有权
    生产CADAVERINE的方法

    公开(公告)号:US20140004576A1

    公开(公告)日:2014-01-02

    申请号:US13991929

    申请日:2011-12-08

    IPC分类号: C12P13/00

    摘要: A method of producing cadaverine is more efficient and at a higher yield than production methods by the conventional fermentation methods. The method includes culturing coryneform bacterium/bacteria having a resistance to a pH of 5.5 or less. Preferably, the coryneform bacterium/bacteria has/have lysine decarboxylase activity and, preferably, the coryneform bacterium/bacteria has/have homoserine auxotrophy and/or a resistance to S-(2-aminoethyl)-L-cysteine.

    摘要翻译: 与通过常规发酵方法的生产方法相比,生产尸胺的方法更有效并且产量高。 该方法包括培养耐pH为5.5以下的棒状细菌/细菌。 优选地,棒状细菌/细菌具有/具有赖氨酸脱羧酶活性,优选棒状细菌/细菌具有高丝氨酸营养缺陷型和/或对S-(2-氨基乙基)-L-半胱氨酸的抗性。

    METHOD FOR PRODUCING CADAVERINE
    3.
    发明申请
    METHOD FOR PRODUCING CADAVERINE 有权
    生产CADAVERINE的方法

    公开(公告)号:US20130323800A1

    公开(公告)日:2013-12-05

    申请号:US13992081

    申请日:2011-12-08

    IPC分类号: C12P13/00

    CPC分类号: C12P13/001 C12Y401/01018

    摘要: A method produces cadaverine more efficiently and at a higher yield than production methods by the conventional fermentation methods. The method includes culturing coryneform bacterium/bacteria having an ability to produce cadaverine and having a resistance to 2,2′-thiobis(ethylamine). Preferably, the coryneform bacterium/bacteria has/have lysine decarboxylase activity and, preferably, the coryneform bacterium/bacteria has/have homoserine auxotrophy and/or a resistance to S-(2-aminoethyl)-L-cysteine.

    摘要翻译: 一种方法通过常规发酵方法比生产方法更有效地产生尸胺,并且产量高。 该方法包括培养具有产生尸胺的能力并具有对2,2'-硫代双(乙胺)的抗性的棒状细菌/细菌。 优选地,棒状细菌/细菌具有/具有赖氨酸脱羧酶活性,优选棒状细菌/细菌具有高丝氨酸营养缺陷型和/或对S-(2-氨基乙基)-L-半胱氨酸的抗性。

    Method of producing lactic acid by continuous fermentation
    4.
    发明授权
    Method of producing lactic acid by continuous fermentation 有权
    通过连续发酵生产乳酸的方法

    公开(公告)号:US08551745B2

    公开(公告)日:2013-10-08

    申请号:US12865934

    申请日:2009-02-03

    IPC分类号: C12P7/56

    CPC分类号: C12P7/56

    摘要: A method of producing lactic acid continuous fermentation including filtering a culture of polyploid yeast having a capacity to produce lactic acid through a porous membrane having an average pore size of not less than 0.01 μm and less than 1 μm, and recovering the product from the filtrate while the unfiltered liquid is retained in or returned to the culture and a fermentation feedstock is added to the culture.

    摘要翻译: 一种生产乳酸连续发酵的方法,包括通过平均孔径不小于0.01μm和小于1μm的多孔膜过滤具有生产乳酸能力的多倍体酵母的培养物,并从滤液中回收产物 而未过滤的液体保留在或返回到培养物中,并且向培养物中加入发酵原料。

    PROCESS FOR PRODUCTION OF CADAVERINE
    5.
    发明申请
    PROCESS FOR PRODUCTION OF CADAVERINE 有权
    生产CADAVERINE的工艺

    公开(公告)号:US20130095534A1

    公开(公告)日:2013-04-18

    申请号:US13580742

    申请日:2011-02-22

    IPC分类号: C12P13/00

    摘要: By a method for producing cadaverine by culturing a microorganism that extracellularly secretes lysine decarboxylase, by-production of lysine is suppressed, the yield of cadaverine relative to glucose consumption is improved compared to conventional production methods, and further, the load on the purification step in purification of cadaverine as a raw material for polyamide can be reduced.

    摘要翻译: 通过培养细胞外分泌赖氨酸脱羧酶的微生物来制造尸胺的方法,抑制赖氨酸的副产生,与常规生产方法相比,尸胺相对于葡萄糖消耗的产率提高,此外,纯化步骤中的负荷 可以降低作为聚酰胺原料的尸胺的净化。