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    • 2. 发明授权
    • Method for stabilizing ascorbic acid oxidase
    • 稳定抗坏血酸氧化酶的方法
    • US09546363B2
    • 2017-01-17
    • US14399983
    • 2013-05-23
    • KYOWA MEDEX CO., LTD.
    • Kenta KinjoTomoko Aratake
    • C12N9/96C12N9/00C12N9/02
    • C12N9/96C12N9/0063C12Q1/26C12Y110/03003G01N2333/90235
    • Provided are: a method for stabilizing an ascorbic acid oxidase; a method for preserving an ascorbic acid oxidase; and a stabilized composition of an ascorbic acid oxidase. A method for stabilizing an ascorbic acid oxidase and a method for preserving an ascorbic acid oxidase, each of the methods comprising allowing an ascorbic acid oxidase to coexist with nitrous acid or a salt thereof, or a nitrous acid ester in an aqueous medium; and a stabilized composition of an ascorbic acid oxidase, which comprises an ascorbic acid oxidase being allowed to coexist with nitrous acid or a salt thereof, or a nitrous acid ester in an aqueous medium. The method for stabilizing an ascorbic acid oxidase, the method for preserving an ascorbic acid oxidase, and the stabilized composition of an ascorbic acid oxidase according to the present invention are useful for clinical diagnosis and the like.
    • 提供:稳定抗坏血酸氧化酶的方法; 一种保存抗坏血酸氧化酶的方法; 和稳定的抗坏血酸氧化酶组合物。 用于稳定抗坏血酸氧化酶的方法和保存抗坏血酸氧化酶的方法,每种方法包括使抗坏血酸氧化酶与含水介质中的亚硝酸或其盐或亚硝酸酯共存; 和抗坏血酸氧化酶的稳定化组合物,其包含使抗坏血酸氧化酶与含水介质中的亚硝酸或其盐或亚硝酸酯共存。 用于稳定抗坏血酸氧化酶的方法,保存抗坏血酸氧化酶的方法和本发明的抗坏血酸氧化酶稳定化组合物可用于临床诊断等。
    • 3. 发明授权
    • Process for the purification or enrichment of biologically active
proteins
    • 纯化或富集生物活性蛋白的方法
    • US4451487A
    • 1984-05-29
    • US377277
    • 1982-05-12
    • Hellmuth VetterPeter ScheibeWaldemar ThumGotthilf Naher
    • Hellmuth VetterPeter ScheibeWaldemar ThumGotthilf Naher
    • A23J1/00A61K38/22A61K38/43A61K38/44A61K39/395C07K1/30C12N9/00C12N9/02C12N9/08C12N9/18C12N9/20C12P21/00
    • C12Y110/03003A23J1/00C07K1/30C12N9/00C12N9/0063C12N9/0065C12N9/18C12N9/20Y10S435/814
    • The present invention provides a process for the purification or enrichment of biologically active proteins by the addition of a selective precipitation agent, wherein an aqueous solution containing the desired protein is mixed at a pH value below its isoelectric point with such an amount of an arylsulphonic acid azo dyestuff with two sulphonate groups, which are separated from one another by 8 to 10 double bonds standing in resonance relationship, among which there is present at least one N.dbd.N double bond, that at least the greater part of the biological activity of the desired active protein is present in the precipitate, the precipitate is separated off and the active protein is again brought into solution at a pH value above its isoelectric point.The present invention also provides an agent for the selective precipitation of biologically active proteins from aqueous solutions thereof without the loss of the biological activity, wherein it contains or consists of an aryl sulphonic acid azo dyestuff with two sulphonate groups, which are separated from one another by 8 to 10 double bonds standing in resonance relationship, among which there is present at least one N.dbd.N double bond.
    • 本发明提供了通过添加选择性沉淀剂来纯化或富集生物活性蛋白质的方法,其中将含有所需蛋白质的水溶液在低于其等电点的pH值下与这样一定量的芳基磺酸 具有两个磺酸根基团的偶氮染料彼此分离,共8个至10个共振关系的双键,其中存在至少一个N = N双键,至少有大部分生物活性 所需的活性蛋白质存在于沉淀物中,分离出沉淀物,并将活性蛋白质再次以高于其等电点的pH值进入溶液中。 本发明还提供了用于从其水溶液中选择性沉淀生物活性蛋白质而不丧失生物活性的试剂,其中它包含或由具有两个磺酸盐基团的芳基磺酸偶氮染料组成,其彼此分离 共有8〜10个双键,其中存在至少一个N = N双键。
    • 6. 发明申请
    • METHOD FOR STABILIZING ASCORBIC ACID OXIDASE
    • 稳定抗坏血酸氧化酶的方法
    • US20150147798A1
    • 2015-05-28
    • US14399983
    • 2013-05-23
    • KYOWA MEDEX CO., LTD.
    • Kenta KinjoTomoko Aratake
    • C12N9/96C12N9/02
    • C12N9/96C12N9/0063C12Q1/26C12Y110/03003G01N2333/90235
    • Provided are: a method for stabilizing an ascorbic acid oxidase; a method for preserving an ascorbic acid oxidase; and a stabilized composition of an ascorbic acid oxidase. A method for stabilizing an ascorbic acid oxidase and a method for preserving an ascorbic acid oxidase, each of the methods comprising allowing an ascorbic acid oxidase to coexist with nitrous acid or a salt thereof, or a nitrous acid ester in an aqueous medium; and a stabilized composition of an ascorbic acid oxidase, which comprises an ascorbic acid oxidase being allowed to coexist with nitrous acid or a salt thereof, or a nitrous acid ester in an aqueous medium. The method for stabilizing an ascorbic acid oxidase, the method for preserving an ascorbic acid oxidase, and the stabilized composition of an ascorbic acid oxidase according to the present invention are useful for clinical diagnosis and the like.
    • 提供:稳定抗坏血酸氧化酶的方法; 一种保存抗坏血酸氧化酶的方法; 和稳定的抗坏血酸氧化酶组合物。 用于稳定抗坏血酸氧化酶的方法和保存抗坏血酸氧化酶的方法,每种方法包括使抗坏血酸氧化酶与含水介质中的亚硝酸或其盐或亚硝酸酯共存; 和抗坏血酸氧化酶的稳定化组合物,其包含使抗坏血酸氧化酶与含水介质中的亚硝酸或其盐或亚硝酸酯共存。 用于稳定抗坏血酸氧化酶的方法,保存抗坏血酸氧化酶的方法和本发明的抗坏血酸氧化酶稳定化组合物可用于临床诊断等。
    • 9. 发明授权
    • Process for production of ascorbate oxidase
    • 生产抗坏血酸氧化酶的方法
    • US4331763A
    • 1982-05-25
    • US217178
    • 1980-12-16
    • Eiji MatsumuraHidehiko IshikawaHideo Misaki
    • Eiji MatsumuraHidehiko IshikawaHideo Misaki
    • C12N9/02C12N9/04
    • C12Y110/03003C12N9/0063
    • Ascorbate oxidase is produced by extraction from plants of the genus Sechium, particularly the species thereof which is Sechium edule Sw. The crushed plant tissues are extracted with an aqueous alkaline solvent, preferably at about pH 11. The extract is then subjected to centrifugation, concentration under vacuum, salting out with ammonium sulfate and solvent fractionation with acetone, to prepare crude ascorbate oxidase, which is then further purified by dialysis, ion exchange chromatography, adsorption chromatography and gel filtration. The ascorbate oxidase thus obtained has an optimum pH of about 7, a km value of 0.3 mM, an isoelectric point of around pH 6.3 and a molecular weight of about 100,000.
    • 抗坏血酸氧化酶通过从Sechium属植物中提取而产生,特别是Sechium edule Sw的种类。 粉碎的植物组织用碱性水溶液萃取,优选在约pH 11下。然后将提​​取物进行离心,在真空下浓缩,用硫酸铵盐析并用丙酮溶剂分级,制备粗抗坏血酸氧化酶 进一步通过透析,离子交换层析,吸附层析和凝胶过滤纯化。 由此获得的抗坏血酸氧化酶具有约7的最佳pH,0.3mM的km值,约6.3的等电点和约100,000的分子量。