POLYPEPTIDE HAVING D-LACTATE DEHYDROGENASE ACTIVITY, POLYNUCLEOTIDE ENCODING THE POLYPEPTIDE, AND PROCESS FOR PRODUCTION OF D-LACTIC ACID
    2.
    发明申请
    POLYPEPTIDE HAVING D-LACTATE DEHYDROGENASE ACTIVITY, POLYNUCLEOTIDE ENCODING THE POLYPEPTIDE, AND PROCESS FOR PRODUCTION OF D-LACTIC ACID 有权
    具有D-脱水脱氢酶活性的多肽,编码多肽的多核苷酸以及D-乳酸的生产方法

    公开(公告)号:US20120070871A1

    公开(公告)日:2012-03-22

    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。

    LACTIC ACID PRODUCTION METHOD
    4.
    发明申请
    LACTIC ACID PRODUCTION METHOD 有权
    柠檬酸生产方法

    公开(公告)号:US20100190222A1

    公开(公告)日:2010-07-29

    申请号:US12666690

    申请日:2008-06-18

    IPC分类号: C12P7/56

    摘要: Disclosed is a lactic acid production method by separating lactic acid produced in a culture solution by means of the fermentation culture of a microorganism. Specifically disclosed is a lactic acid production method, which comprises: a step (A) of filtering the culture solution through a nano-filtration membrane; and a step (B) of distilling a lactic-acid-containing solution produced in the step (A) under a pressure ranging from 1 Pa to the atmospheric pressure (inclusive) at a temperature ranging from 25 to 200° C. (inclusive) to collect lactic acid. The method can effectively remove an inorganic salt dissolved in a fermentation culture solution or contained in the fermentation culture solution in the form of a poorly soluble solid material by a simple manipulation, enables to prevent the racemization or oligomerization of lactic acid during the process of producing lactic acid, and therefore can produce lactic acid in a high yield.

    摘要翻译: 公开了通过微生物的发酵培养分离培养液中产生的乳酸的乳酸生产方法。 具体公开的是乳酸的制造方法,其包括:通过纳滤膜过滤培养液的工序(A) 和(B)在步骤(A)中制备的含乳酸的溶液在25Pa至200℃的温度范围内,在1Pa至大气压(含)范围内, 收集乳酸。 该方法可以通过简单的操作有效地除去溶解在发酵培养液中的无机盐或发酵培养液中含有的难溶性固体物质的形式的无机盐,能够防止生产过程中乳酸的外消旋化或低聚反应 乳酸,因此可以高产率生产乳酸。

    Method for producing cadaverine
    7.
    发明授权
    Method for producing cadaverine 有权
    生成尸胺的方法

    公开(公告)号:US09080190B2

    公开(公告)日:2015-07-14

    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。

    Expression cassette for lactase dehydrogenase, transformed yeast and method of producing lactic acid
    8.
    发明授权
    Expression cassette for lactase dehydrogenase, transformed yeast and method of producing lactic acid 有权
    用于乳糖酶脱氢酶,转化酵母的表达盒和产生乳酸的方法

    公开(公告)号:US08859260B2

    公开(公告)日:2014-10-14

    申请号:US12746642

    申请日:2008-12-05

    CPC分类号: C12P7/56 C12N9/0006 C12N15/81

    摘要: A gene expressing cassette codes lactate dehydrogenase that is needed for prevention of deterioration in lactic acid yield and lactic acid production rate in continuous culture with simultaneous filtration of a yeast strain having a lactic acid-producing ability, which achieves high optical purity, high lactic acid yield and high lactic acid production rate simultaneously, a yeast strain having the cassette and a method of producing lactic acid by culturing the yeast strain. The lactate dehydrogenase-expressing cassette is a lactate dehydrogenase-expressing cassette, comprising a gene coding lactate dehydrogenase connected to a site downstream of a promoter, the promoter being a promoter of a gene showing a gene expression amount larger by 5 times or more than the average relative expression amount of all genes after 50 hours from start of culture in continuous culture with simultaneous filtration of a yeast strain having a lactic acid-producing ability.

    摘要翻译: 表达盒的基因编码乳酸脱氢酶,其在连续培养中同时过滤具有乳酸生产能力的酵母菌株(其获得高光学纯度)的高乳酸所需的乳酸产率和乳酸生产率的降低所需的乳酸脱氢酶 产量和高乳酸生产率,具有盒的酵母菌株和通过培养酵母菌株产生乳酸的方法。 表达乳酸脱氢酶的盒是表达乳酸脱氢酶的盒,其包含编码与启动子下游位点连接的乳酸脱氢酶的基因,该启动子是基因表达量大于5倍以上的基因的启动子 同时过滤具有乳酸生产能力的酵母菌株的连续培养开始培养50小时后的所有基因的平均相对表达量。

    METHOD FOR PRODUCING 1,5-PENTANEDIAMINE
    9.
    发明申请
    METHOD FOR PRODUCING 1,5-PENTANEDIAMINE 审中-公开
    1,5-戊二胺的制备方法

    公开(公告)号:US20130071888A1

    公开(公告)日:2013-03-21

    申请号:US13640793

    申请日:2011-04-11

    IPC分类号: C12N15/52

    摘要: A method of producing 1,5-pentanediamine includes culturing coryneform bacterium having a gene encoding lysine decarboxylase in its chromosome, which coryneform bacterium maintains lysine decarboxylase activity of not less than 50 mU/mg protein during culturing and the gene encoding lysine decarboxylase is linked downstream of a promoter that functions during the logarithmic growth phase.

    摘要翻译: 一种生产1,5-戊二胺的方法包括在其染色体中培养具有编码赖氨酸脱羧酶基因的棒状细菌,棒状细菌在培养期间保持不低于50mU / mg蛋白质的赖氨酸脱羧酶活性,编码赖氨酸脱羧酶的基因连接在下游 在对数生长期间起作用的启动子。