Production of polyhydroxyalkanoates from polyols
    8.
    发明授权
    Production of polyhydroxyalkanoates from polyols 有权
    从多元醇生产聚羟基链烷酸酯

    公开(公告)号:US08741624B2

    公开(公告)日:2014-06-03

    申请号:US12539079

    申请日:2009-08-11

    CPC分类号: C12P7/625 C12N15/52

    摘要: Recombinant processes are provided whereby additional genes are introduced into E. coli which have been genetically engineered to produce PHA so that the improved strains produce PHA homopolymers and copolymers directly from diols. In preferred embodiments, PHAs containing 4-hydroxybutyrate monomers are produced directly from 1,4-butanediol; PHAs containing 5-hydroxyvalerate are produced from 1,5-pentanediol; PHAs containing 6-hydroxyhexanoate (6HH) are produced from 1,6-hexanediol; PHAs containing 3-hydroxypropionate are produced from 1,3-propanediol; PHAs containing 2-hydroxypropionate (lactate) are produced from 1,2-propanediol (propylene glycol); PHAs containing 2-hydroxyethanoate (glycolate) are produced from 1,2-ethanediol (ethylene glycol). Genes encoding these same enzyme activities can be introduced or their expression amplified in wild type PHA producers to improve the production of PHA homopolymers and copolymers directly from diol and other alcohol feedstocks. The PHA polymers are readily recovered and industrially useful as polymers or as starting materials for a range of chemical intermediates.

    摘要翻译: 提供了重组方法,其中将另外的基因导入大肠杆菌,其已被遗传工程化以产生PHA,使得改良的菌株直接从二醇产生PHA均聚物和共聚物。 在优选的实施方案中,含有4-羟基丁酸酯单体的PHA直接由1,4-丁二醇制备; 含有5-羟基戊酸酯的PHA由1,5-戊二醇制备; 含有6-羟基己酸(6HH)的PHA由1,6-己二醇制成; 含有3-羟基丙酸的PHAs由1,3-丙二醇生产; 含有2-羟基丙酸酯(乳酸酯)的PHA由1,2-丙二醇(丙二醇)制成; 含有2-羟基乙醇酸(乙醇酸)的PHA由1,2-乙二醇(乙二醇)制备。 可以在野生型PHA生产者中引入编码这些相同酶活性的基因或其表达,以直接从二醇和其它醇原料改进PHA均聚物和共聚物的生产。 PHA聚合物易于回收并且在工业上可用作聚合物或作为一系列化学中间体的起始材料。

    Production of Polyhydroxyalkanoates From Polyols
    9.
    发明申请
    Production of Polyhydroxyalkanoates From Polyols 有权
    从多元醇生产聚羟基链烷酸酯

    公开(公告)号:US20100021919A1

    公开(公告)日:2010-01-28

    申请号:US12539079

    申请日:2009-08-11

    CPC分类号: C12P7/625 C12N15/52

    摘要: Recombinant processes are provided whereby additional genes are introduced into E. coli which have been genetically engineered to produce PHA so that the improved strains produce PHA homopolymers and copolymers directly from diols. In preferred embodiments, PHAs containing 4-hydroxybutyrate monomers are produced directly from 1,4-butanediol; PHAs containing 5-hydroxyvalerate are produced from 1,5-pentanediol; PHAs containing 6-hydroxyhexanoate (6HH) are produced from 1,6-hexanediol; PHAs containing 3-hydroxypropionate are produced from 1,3-propanediol; PHAs containing 2-hydroxypropionate (lactate) are produced from 1,2-propanediol (propylene glycol); PHAs containing 2-hydroxyethanoate (glycolate) are produced from 1,2-ethanediol (ethylene glycol). Genes encoding these same enzyme activities can be introduced or their expression amplified in wild type PHA producers to improve the production of PHA homopolymers and copolymers directly from diol and other alcohol feedstocks. The PHA polymers are readily recovered and industrially useful as polymers or as starting materials for a range of chemical intermediates.

    摘要翻译: 提供了重组方法,其中将另外的基因导入大肠杆菌,其已被遗传工程化以产生PHA,使得改良的菌株直接从二醇产生PHA均聚物和共聚物。 在优选的实施方案中,含有4-羟基丁酸酯单体的PHA直接由1,4-丁二醇制备; 含有5-羟基戊酸酯的PHA由1,5-戊二醇制备; 含有6-羟基己酸(6HH)的PHA由1,6-己二醇制成; 含有3-羟基丙酸的PHAs由1,3-丙二醇生产; 含有2-羟基丙酸酯(乳酸酯)的PHA由1,2-丙二醇(丙二醇)制成; 含有2-羟基乙醇酸(乙醇酸)的PHA由1,2-乙二醇(乙二醇)制备。 可以在野生型PHA生产者中引入编码这些相同酶活性的基因或其表达,以直接从二醇和其它醇原料改进PHA均聚物和共聚物的生产。 PHA聚合物易于回收并且在工业上可用作聚合物或作为一系列化学中间体的起始材料。