Microorganism overproducing 5'-xanthylic acid
    2.
    发明申请
    Microorganism overproducing 5'-xanthylic acid 有权
    微生物过量产生5'-戊酸

    公开(公告)号:US20030148498A1

    公开(公告)日:2003-08-07

    申请号:US10322455

    申请日:2002-12-19

    CPC classification number: C12R1/15 C12N1/20 C12P19/32 Y10S435/843

    Abstract: The invention relates to microorganism producing 5null-xanthylic acid. More specifically, the invention relates to Corynebacterium ammoniagenes CJXPK001 which is a mutant strain of Corynebacterium ammoniagenes KFCC 10743 having a resistance to 3,4-dehydro-DL-proline. Since Corynebacterium ammoniagenes CJXPK001 of the present invention is resistant to 3,4-dehydro-DL-proline and is not affected by the osmotic pressure caused by the accumulated, highly concentrated solute in the medium, it can produce 5null-xanthylic acid at a high yield and concentration rate.

    Abstract translation: 本发明涉及产生5'-戊酸的微生物。 更具体地,本发明涉及产氨棒杆菌CJXPK001,其是具有对3,4-脱氢-DL-脯氨酸的抗性的产氨棒杆菌KFCC 10743的突变株。 由于本发明的产氨酸棒杆菌CJXPK001对3,4-脱氢-DL-脯氨酸具有抗性,并且不受由培养基中积累的高度浓缩的溶质引起的渗透压的影响,所以可以产生5-x-戊酸 高产量和集中率。

    Novel bacterial strains, methods of preparing the same and use thereof in fermentation processes for L-lysine production
    3.
    发明申请
    Novel bacterial strains, methods of preparing the same and use thereof in fermentation processes for L-lysine production 有权
    新型细菌菌株,其制备方法及其在L-赖氨酸生产发酵过程中的应用

    公开(公告)号:US20030113878A1

    公开(公告)日:2003-06-19

    申请号:US10283075

    申请日:2002-10-30

    CPC classification number: C12R1/15 C12N15/01 C12P13/08 Y10S435/843

    Abstract: The invention provides novel microorganisms, methods for the production thereof and novel processes for the production of amino acids. Mutagenesis of parental bacterial strains and selection of an improved raffinate-resistant phenotype enables the isolation of strains with enhanced growth properties that produce larger amounts of amino acid. Microorganisms of the invention are produced from amino acid producing parental strains such as Corynebacterium or Brevibacterium, particularly preferred are parental strains that produce L-lysine.

    Abstract translation: 本发明提供新的微生物,其生产方法和制备氨基酸的新方法。 亲本细菌菌株的诱变和提高的残液抗性表型的选择使得能够分离产生更大量氨基酸的增强生长特性的菌株。 本发明的微生物由氨基酸生产的亲本菌株如棒状杆菌或短杆菌产生,特别优选的是产生L-赖氨酸的亲本菌株。

    Method of producing L-amino acids by fermentation
    4.
    发明授权
    Method of producing L-amino acids by fermentation 失效
    通过发酵生产L-氨基酸的方法

    公开(公告)号:US5840551A

    公开(公告)日:1998-11-24

    申请号:US769437

    申请日:1996-12-19

    Abstract: A method of producing L-amino acids by fermentation. Microorganisms of the genus Corynebacterium which exhibit an auxotrophy relative to an amino acid are used as biocatalysts. The method is characterized in that the carbon source on the one hand and the limiting amino acid on the other hand are fed in two or more different infeed currents to the process. The infeed profiles have, for example, a concave (saccharose) and an exponential (amino acid) form or a convex (saccharose) and likewise a convex (amino acid) form, with specific differing degrees of increase of the currents relative to each other over time.

    Abstract translation: 通过发酵生产L-氨基酸的方法。 显示出相对于氨基酸的营养缺陷型棒状杆菌属的微生物用作生物催化剂。 该方法的特征在于一方面碳源和限制性氨基酸以两种或多种不同的进料电流进料至该方法。 进料曲线具有例如凹(蔗糖)和指数(氨基酸)形式或凸状(蔗糖)和类似于凸(氨基酸)形式,其电流相对于彼此具有特定不同程度的增加 随着时间的推移。

    Process for producing L-leucine
    5.
    发明授权
    Process for producing L-leucine 失效
    L-亮氨酸生产工艺

    公开(公告)号:US5763231A

    公开(公告)日:1998-06-09

    申请号:US610874

    申请日:1996-03-05

    CPC classification number: C12P13/06 Y10S435/843 Y10S435/848 Y10S435/849

    Abstract: A process for producing L-leucine, which includes incubating an L-leucine-productive microorganism belonging to the genus Corynebacterium, Escherichia, Brevibacterium, or Microbacterium in a culture medium and reacting the resulting cells with saccharides and acetic acid or its salt to form and accumulate L-leucine in the reaction solution. The process improves the amount of L-leucine accumulated and decreases formation of amino acid byproducts.

    Abstract translation: 一种生产L-亮氨酸的方法,其包括在培养基中孵育属于棒状杆菌属,埃希氏杆菌属,短杆菌属或微杆菌属的L-亮氨酸生产性微生物,并使所得细胞与糖和乙酸或其盐反应,形成和 在反应溶液中积聚L-亮氨酸。 该过程提高了L-亮氨酸的积累量,减少了氨基酸副产物的形成。

    Process for producing L-tryptophan by a Corynebacterium strain having
decreased phosphoenolpyruvate carboxylase activity
    7.
    发明授权
    Process for producing L-tryptophan by a Corynebacterium strain having decreased phosphoenolpyruvate carboxylase activity 失效
    通过具有降低的磷酸烯醇丙酮酸羧化酶活性的棒状杆菌菌株产生L-色氨酸的方法

    公开(公告)号:US5484716A

    公开(公告)日:1996-01-16

    申请号:US130995

    申请日:1993-10-04

    CPC classification number: C12P13/22 Y10S435/84 Y10S435/843

    Abstract: The invention relates to a bacterial process for producing L-tryptophan, L-tyrosine or L-phenylalanine. The process utilizes a coryneform glutamic acid-producing bacterium being capable of producing L-tryptophan, L-tyrosine or L-phenylalanine and also decreased or lacked in phosphoenolpyruvate carboxylase activity. The mutant strain is then cultured in order to accumulate the amino acid in a medium and the amino acid is recovered therefrom.

    Abstract translation: 本发明涉及生产L-色氨酸,L-酪氨酸或L-苯丙氨酸的细菌方法。 该方法利用产生L-色氨酸,L-酪氨酸或L-苯丙氨酸的棒状谷氨酸生产细菌,并且还降低或缺乏磷酸烯醇丙酮酸羧化酶活性。 然后培养突变菌株以将氨基酸在培养基中积累,并从中回收氨基酸。

    Strain of Corynebacterium glutamicum and method for producing L-lysine
    8.
    发明授权
    Strain of Corynebacterium glutamicum and method for producing L-lysine 失效
    谷氨酸棒杆菌菌株及L-赖氨酸生产方法

    公开(公告)号:US5268293A

    公开(公告)日:1993-12-07

    申请号:US851120

    申请日:1992-03-16

    CPC classification number: C12R1/15 C12P13/08 Y10S435/843

    Abstract: Disclosed are Corynebacterium glutamicum CS-755 (KFCC 10672, FERM BP-2763), a L-lysine producing microorganism which is resistant to .alpha.-amino-.beta.-hydroxyvaleric acid, S-(.beta.-aminoethyl)-L-cysteine, methyl lysine, arginine analogues, other analogues, .beta.-(2 -thiazolyl)-DL-alanine, 5-hydroxyuridine, 6-azauracil, and 6-fluorotryptophan requires leucine and homoserine for growth, and a method for producing L-lysine comprising culturing the strain (KFCC 10672, FERM BP-2763) and recovering L-lysine from the resultant culture broth.

    Abstract translation: 公开了谷氨酸棒杆菌CS-755(KFCC 10672,FERM BP-2763),对α-氨基-β-羟基戊酸具有抗性的L-赖氨酸生产微生物,S-(β-氨基乙基)-L-半胱氨酸,甲基赖氨酸 ,精氨酸类似物,其他类似物,β-(2-噻唑基)-DL-丙氨酸,5-羟基尿苷,6-氮尿嘧啶和6-氟色氨酸需要亮氨酸和高丝氨酸进行生长,以及生产L-赖氨酸的方法,包括培养菌株 (KFCC 10672,FERM BP-2763)并从所得培养液中回收L-赖氨酸。

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