Production of glyoxylic acid from glycolic acid
    3.
    发明授权
    Production of glyoxylic acid from glycolic acid 失效
    从乙醇酸生产乙醛酸

    公开(公告)号:US5219745A

    公开(公告)日:1993-06-15

    申请号:US705419

    申请日:1991-05-24

    IPC分类号: C12P7/40

    CPC分类号: C12P7/40

    摘要: A process for the production of glyoxylic acid involving the enzymatic oxidation of glycolic acid. The process provides a commercially practical method involving the reaction of glycolic acid in an aqueous solution at a starting concentration range of 200 mM to 2,500 mM in the presence of oxygen, glycolate oxidase and catalase at a pH of 7 to 10 and in the presence of an amine such as ethylenediamine, or tris(hydroxymethyl)-methylamine.

    摘要翻译: 涉及乙醇酸酶促氧化的乙醛酸的生产方法。 该方法提供了一种商业上实用的方法,其涉及在氧气,乙醇酸氧化酶和过氧化氢酶的存在下,在pH为7至10的条件下,以200mM至2,500mM的起始浓度范围的乙醇酸反应, 胺如乙二胺或三(羟甲基) - 甲基胺。

    Production of glyoxylic acid with glycolate oxidase and catalase
immobilized on oxirane acrylic beads
    4.
    发明授权
    Production of glyoxylic acid with glycolate oxidase and catalase immobilized on oxirane acrylic beads 失效
    用羟乙酸氧化酶和过氧化氢酶固定在环氧乙烷丙烯酸珠上生产乙醛酸

    公开(公告)号:US5439813A

    公开(公告)日:1995-08-08

    申请号:US253812

    申请日:1994-06-03

    IPC分类号: C12P7/40 C12N9/04 C12N9/08

    CPC分类号: C12P7/40

    摘要: A process for the production of glyoxylic acid by reacting glycolic acid with oxygen in an aqueous solution in the presence of an amine buffer capable of forming a chemical adduct with glyoxylic acid, and glycolate oxidase and catalase immobilized or co-immobilized on an insoluble support is disclosed. The reaction is carried out at a pH of 7 to 10, preferably 8 to 9.5, an initial concentration of glycolic acid of 200 to 2500 mM, a concentration of amine wherein the initial mole ratio of amine to glycolic acid is within the range of 1.0 to 3.0, a concentration of immobilized catalase of 50 to 100,00 IU/mL, preferably 350 to 14,000 IU/mL, an oxygen pressure of up to 50 atmospheres, preferably 15 atmospheres, an immobilized glycolate oxidase concentration of about 0.01 to 10 IU/mL, preferably about 0.1 to 4 IU/mL, and a temperature of 0.degree. to 40.degree. C. preferably 5.degree. to 15.degree. C. Preferred insoluble immobilization supports are Eupergit C-250L and Eupergit C (Oxirane acrylic beads).

    摘要翻译: 在能够与乙醛酸形成化学加合物的胺缓冲剂存在下,在水溶液中使乙醇酸与氧反应生成乙醛酸的方法,以及固定或共固定在不溶性载体上的乙醇酸氧化酶和过氧化氢酶, 披露 该反应在pH为7至10,优选8至9.5,乙醇酸的初始浓度为200至2500mM,其中胺与乙醇酸的初始摩尔比在1.0的范围内的胺浓度进行 至3.0,固定化过氧化氢酶的浓度为50至100,00IU / mL,优选为350至14,000IU / mL,氧气压力高达50大气压,优选15个大气压,固定化的乙醇酸氧化酶浓度为约0.01至10IU / mL,优选约0.1〜4IU / mL,温度为0〜40℃,优选为5〜15℃。优选的不溶性固定载体为Eupergit C-250L和Eupergit C(Oxirane acrylic beads)。

    Production of glyoxylic acid from glycolic acid
    5.
    发明授权
    Production of glyoxylic acid from glycolic acid 失效
    从乙醇酸生产乙醛酸

    公开(公告)号:US5221621A

    公开(公告)日:1993-06-22

    申请号:US705420

    申请日:1991-05-24

    IPC分类号: C12P7/40

    CPC分类号: C12P7/40

    摘要: A process or the production of glyoxylic acid involving the enzymatic oxidation of glycolic acid. The process provides a commercially practical method involving the reaction of glycolic acid in an aqueous solution at a starting concentration range of 200 mM to 2,500 mM in the presence of oxygen, glycolate oxidase and catalase at a pH of 7 to 10.

    摘要翻译: 涉及乙醇酸的酶氧化的方法或生产乙醛酸。 该方法提供商业实用的方法,其涉及在氧气,乙醇酸氧化酶和过氧化氢酶的存在下,在pH为7至10的情况下,以200mM至2,500mM的起始浓度范围的乙醇酸反应。

    Process for preparing glyoxylic acid/dialkyl aminomethylphosphonate
mixtures
    6.
    发明授权
    Process for preparing glyoxylic acid/dialkyl aminomethylphosphonate mixtures 失效
    制备乙醛酸/二烷基氨基甲基膦酸酯混合物的方法

    公开(公告)号:US5559020A

    公开(公告)日:1996-09-24

    申请号:US385260

    申请日:1995-02-08

    CPC分类号: C12P13/04 C07F9/3813 C12P7/40

    摘要: The invention provides a process for producing mixtures of glyoxylate and a dialkyl aminomethylphosphonate and the subsequent production of N-(phosphonomethyl)glycine, also known as glyphosate. The process comprises preparing in situ a mixture of glyoxylate and a dialkyl aminomethylphosphonate (DEAMPA) by enzymatically reacting glycolic acid (glycolate) and oxygen in an aqueous solution in the presence of a dialkyl aminomethylphosphonate and catalysts consisting of glycolate oxidase and catalase. The resulting mixture can be hydrogenated and then subjected to hydrolysis to produce N-(phosphonomethyl)glycine, a post-emergent phytotoxicant and herbicide.

    摘要翻译: 本发明提供了一种生产乙醛酸盐和氨基甲基膦酸二烷基酯混合物的方法,随后生产N-(膦酰基甲基)甘氨酸,也称为草甘膦。 该方法包括在二烷基氨基甲基膦酸二烷基酯和由乙醇酸氧化酶和过氧化氢酶组成的催化剂的存在下,使乙醇酸(乙醇酸)和氧在水溶液中酶促反应,原位制备乙醛酸和二烷基氨基甲基膦酸二乙酯(DEAMPA)的混合物。 所得混合物可以氢化,然后进行水解以产生N-(膦酰基甲基)甘氨酸,芽后植物毒素和除草剂。

    Glyoxylic acid/aminomethylphosphonic acid mixtures prepared using a
microbial transformant
    7.
    发明授权
    Glyoxylic acid/aminomethylphosphonic acid mixtures prepared using a microbial transformant 失效
    使用微生物转化体制备的乙醛酸/氨基甲基膦酸混合物

    公开(公告)号:US5541094A

    公开(公告)日:1996-07-30

    申请号:US253823

    申请日:1994-06-03

    摘要: An improved enzymatic process for reacting glycolic acid and oxygen in an aqueous solution in the presence of aminomethylphosphonic acid wherein the improvement comprises using a microbial cell catalyst that expresses glycolate oxidase (e.g., Pichia pastoris, Hansenula polymorpha, Aspergillus nidulans, or Escherichia coli) and endogenous catalase; soluble catalase may also be included. The resulting mixtures are useful intermediates in the production of N-(phosphonomethyl)glycine.

    摘要翻译: 一种在氨基甲基膦酸存在下使乙醇酸和氧在水溶液中反应的改进的酶法,其中改进包括使用表达乙醇酸氧化酶的微生物细胞催化剂(例如巴斯德毕赤酵母,多形汉逊酵母,构巢曲霉或大肠埃希氏菌)和 内源性过氧化氢酶; 也可以包括可溶性过氧化氢酶。 所得混合物是制备N-(膦酰基甲基)甘氨酸的有用中间体。