Method for producing L-phenylalanine by fermentation
    3.
    发明授权
    Method for producing L-phenylalanine by fermentation 失效
    通过发酵生产L-苯丙氨酸的方法

    公开(公告)号:US4591562A

    公开(公告)日:1986-05-27

    申请号:US519714

    申请日:1983-08-02

    摘要: A method for producing L-phenylalanine by fermentation which comprises aerobically culturing an L-phenylalanine-producing microorganism in an aqueous culture medium and recovering the L-phenylalanine accumulated in the culture medium, the L-phenylalanine-producing microorganism having been constructed by incorporating a recombinant plasmid DNA, into which a DNA fragment controlling resistance to a phenylalanine antagoinst, obtained from a chromosomal DNA of a mutant of the genus Bacillus resistant to the phenylalanine antagonist, has been inserted, into a recipient strain of the genus Bacillus.

    摘要翻译: 通过发酵生产L-苯丙氨酸的方法,其包括在水性培养基中有氧培养产生L-苯丙氨酸的微生物并回收在培养基中积累的L-苯丙氨酸,所述L-苯丙氨酸生产微生物通过掺入 将从对苯丙氨酸拮抗剂耐药的芽孢杆菌的突变体的染色体DNA获得的控制对苯丙氨酸antagoinst的抗性的DNA片段插入其中的重组质粒DNA插入到芽孢杆菌属的受体菌株中。

    Method for producing L-isoleucine by fermentation
    7.
    发明授权
    Method for producing L-isoleucine by fermentation 失效
    通过发酵生产L-异亮氨酸的方法

    公开(公告)号:US4442208A

    公开(公告)日:1984-04-10

    申请号:US392145

    申请日:1982-06-25

    CPC分类号: C12P13/06 C12N15/52 C12N15/77

    摘要: L-isoleucine is produced by a fermentation process comprising aerobically culturing in an aqueous culture medium an L-isoleucine producing microorganism obtained by isolating a transformed strain resistant to .alpha.-amino-.beta.-hydroxy valeric acid prepared by incorporating into a recipient strain of the genus Brevibacterium orCorynebacterium, which is sensitive to .alpha.-amino-.beta.-hydroxy valeric acid, a plasmid DNA obtained from a microorganism of the genus Brevibacterium or Corynebacterium into which has been inserted a fragment of chromosomal DNA derived from a DNA-donor strain of the genus Brevibacterium or Corynebacterium which is resistant to .alpha.-amino-.beta.-hydroxy valeric acid; and recovering L-isoleucine which accumulates in the resulting culture liquid.

    摘要翻译: 通过发酵方法产生L-异亮氨酸,所述发酵方法包括在水性培养基中有氧培养产生的L-异亮氨酸微生物,其通过分离通过掺入到所述属的受体菌株中而制备的对α-氨基-β-羟基戊酸有抗性的转化菌株 对α-氨基-β-羟基戊酸敏感的短杆菌或棒状杆菌,从短杆菌属或棒状杆菌属的微生物获得的质粒DNA,其中插入了源自该属的DNA供体菌株的染色体DNA片段 对α-氨基-β-羟基戊酸有抗性的短杆菌属或棒状杆菌; 并回收在所得培养液中积聚的L-异亮氨酸。