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    • 11. 发明授权
    • Method for the quantitative determination of D-3-hydroxybutyric acid and
acetoacetic acid, and analytical reagent therefor
    • 定量测定D-3-羟基丁酸和乙酰乙酸的方法及其分析试剂
    • US5633143A
    • 1997-05-27
    • US244450
    • 1994-05-26
    • Shigeru UedaHideo MisakiShigeru IkutaMamoru Takahashi
    • Shigeru UedaHideo MisakiShigeru IkutaMamoru Takahashi
    • C12Q1/32C12Q1/52G01N31/00G01N33/53
    • C12Q1/32Y10S435/966Y10S435/973Y10T436/104998
    • Disclosed is a method for the quantitative determination of D-3-hydroxybutyric acid and acetoacetic acid, which comprises reacting a biological sample containing D-3-hydroxybutyric acid and acetoacetic acid, with a reagent comprising: (1) a D-3-hydroxybutyrate dehydrogenase, (2) A.sub.1 and (3) B.sub.1, the components (1), (2) and (3) participating in the following cycling reaction: ##STR1## thereby effecting the enzymatic cycling reaction, and measuring a change in the amount of A.sub.2 formed or the amount of B.sub.1 consumed. Also disclosed is an analytical reagent comprising the components (1), (2) and (3) for use in the above method. The method and the analytical reagent ensure rapidness and accuracy in the determination of D-3-hydroxybutyric acid and acetoacetic acid, even with the use of a small quantity of a biological sample, so that they are very useful in application fields, such as clinical diagnosis and food testing.
    • PCT No.PCT / JP91 / 01706 Sec。 371日期:1994年5月26日 102(e)日期1994年5月26日PCT 1991年12月12日PCT PCT。 公开号WO93 / 12254 日期:1993年6月24日公开是定量测定D-3-羟基丁酸和乙酰乙酸的方法,其包括使含有D-3-羟基丁酸和乙酰乙酸的生物样品与包含以下物质的试剂反应:(1) D-3-羟基丁酸脱氢酶,(2)A1和(3)B1,参与以下循环反应的组分(1),(2)和(3):进行酶循环反应,并测量 形成的A2的量的变化或消耗的B1的量。 还公开了包含用于上述方法的组分(1),(2)和(3)的分析试剂。 该方法和分析试剂确保即使使用少量生物样品也能快速,准确地测定D-3-羟基丁酸和乙酰乙酸,因此它们在临床应用领域非常有用 诊断和食品检测。
    • 16. 发明授权
    • Composition for lipase assay
    • 脂肪酶测定组合物
    • US4845028A
    • 1989-07-04
    • US244513
    • 1988-09-09
    • Shigeyuki ImamuraHideo Misaki
    • Shigeyuki ImamuraHideo Misaki
    • C12Q1/44C12Q1/34C12Q1/61
    • C12Q1/34G01N2333/918
    • A composition and method for lipase assay, comprising the use of an aqueous solution of a 1,2-diglyceride of a higher fatty acid, and a nonionic surface active agent. The higher fatty acid is a higher fatty acid of 8 or more and preferably 12 or more carbons, most preferably a higher unsaturated fatty acid of more than 16 carbons. The concentration of 1,2-diglyceride is more than 0.5 g per liter of solution. The nonionic surface active agent is a polyoxyethylene-type nonionic surface active agent, a polyhydric-alcohol-type nonionic surface active agent or a block-polymer-type nonionic surface active agent, whose concentration is more than 0.1% by weight in the composition and which has an HLB more than 10. The composition preferably contains 0.5-10 g of 1,2-diglyceride and 10-50 g of nonionic surface active agent per liter of solution.
    • 脂肪酶测定的组合物和方法,包括使用高级脂肪酸的1,2-二甘油酯的水溶液和非离子表面活性剂。 高级脂肪酸是8个以上且优选12个或更多个碳的高级脂肪酸,最优选高于16个碳的较高不饱和脂肪酸。 1,2-二甘油酯的浓度高于每升溶液0.5g。 非离子表面活性剂是组合物中浓度大于0.1重量%的聚氧乙烯型非离子表面活性剂,多元醇型非离子表面活性剂或嵌段聚合物型非离子表面活性剂, 其HLB大于10.该组合物优选每升溶液含有0.5-10g的1,2-二甘油酯和10-50g的非离子表面活性剂。
    • 17. 发明授权
    • Method for producing ethanolamine oxidase
    • 生产乙醇胺氧化酶的方法
    • US4788147A
    • 1988-11-29
    • US865584
    • 1986-05-21
    • Shigeyuki ImamuraHideo Misaki
    • Shigeyuki ImamuraHideo Misaki
    • G01N33/92C12Q1/26C12Q1/44C12N9/06
    • C12Q1/44C12Q1/26C12Q2326/96G01N2333/906G01N2333/916G01N2405/04Y10S435/832
    • Ethanolamine in a sample can be assayed by treating the sample with ethanolamine oxidase, thereby to catalyze a reaction-consuming ethanolamine, oxygen and water, and forming glycolaldehyde, ammonia and hydrogen peroxide. The amount of consumed oxygen or the amount of generated ammonia or hydrogen peroxide is then determined, as a measure of the ethanolamine that was originally the sample. The ethanolamine can appear in the sample as such, or can be liberated simultaneously with or prior to the catalysis reaction, from an ethanolamine derivative, e.g. phosphatidyl ethanolamine by the action of phospholipase D. Ethanolamine oxidase can be produced from Bacillus sp. B-0783 FERM-P No. 5798 in a conventional culture medium, preferably by submerged aeration liquid culturation.
    • 通过用乙醇胺氧化酶处理样品可以测定样品中的乙醇胺,从而催化消耗反应的乙醇胺,氧和水,并形成乙二醇,氨和过氧化氢。 然后测定消耗的氧气的量或产生的氨或过氧化氢的量,作为最初为样品的乙醇胺的量度。 乙醇胺可以如此出现在样品中,或者可以与催化反应同时或之前从乙醇胺衍生物例如乙醇胺衍生物中释放出来。 磷脂酰乙醇胺通过磷脂酶D的作用。乙醇胺氧化酶可以从芽孢杆菌sp。 B-0783 FERM-P No.5798,优选通过浸没曝气液体培养。