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公开(公告)号:US4008127A
公开(公告)日:1977-02-15
申请号:US633997
申请日:1975-11-20
申请人: Wolfgang Gruber , Hans Ulrich Bergmeyer , Michael Nelboeck-Hochstetter , Klaus Beaucamp , Gunter Holz , Johanna Gramsall , Gunter Lang
发明人: Wolfgang Gruber , Hans Ulrich Bergmeyer , Michael Nelboeck-Hochstetter , Klaus Beaucamp , Gunter Holz , Johanna Gramsall , Gunter Lang
CPC分类号: C12N9/0006 , Y10S435/822 , Y10S435/872
摘要: Cholesterol oxidase which oxidizes cholesterol with oxygen to give cholestenone and hydrogen peroxide, is prepared by culturing Nocardia erthropolis ATCC 17895, Nocardia erthropolis ATCC 4277, Nocardia formica ATCC 14811 or Proactinomyce erythropolis NCIB 9158 first on a peptone-containing mineral salt medium and thereafter on at least one sterol compound as the sole source of carbon, and then isolating the cholesterol oxidase formed from the cultured micro-organism, wherein said sterol compound is of the formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or together represent a double bond,R.sub.3 and R.sub.4 are hydrogen or together represent a double bond, andR.sub.5 is hydrogen or alkyl containing up to 3 carbon atoms.
摘要翻译: 首先通过在含蛋白胨的矿物盐介质上培养诺卡氏菌霍奇金菌ATCC 17895,诺卡氏菌诺卡氏菌诺丝诺菌ATCC 4277,诺卡氏菌ATCC 14811或Proactinomyce erythropolis NCIB 9158来制备胆固醇氧化胆固醇以产生胆碱酯酶和过氧化氢的胆固醇氧化酶, 至少一种固醇化合物作为唯一的碳源,然后分离由培养的微生物形成的胆固醇氧化酶,其中所述甾醇化合物具有式(I),其中R 1和R 2是氢或一起代表 双键,R 3和R 4是氢或一起表示双键,并且R 5是氢或含有至多3个碳原子的烷基。
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2.
公开(公告)号:US4144129A
公开(公告)日:1979-03-13
申请号:US360490
申请日:1973-05-15
申请人: Wolfgang Gruber , Hans U. Bergmeyer , Michael Nelbock-Hochstetter , Klaus Beaucamp , Gunter Holz , Johanna Gramsall , Gunter Lang
发明人: Wolfgang Gruber , Hans U. Bergmeyer , Michael Nelbock-Hochstetter , Klaus Beaucamp , Gunter Holz , Johanna Gramsall , Gunter Lang
IPC分类号: G01N33/92 , C12N9/04 , C12Q1/26 , C12Q1/60 , C12R1/01 , C12R1/325 , C12R1/365 , C12R1/645 , C07G7/028
CPC分类号: C12N9/0006 , C12Q1/60 , Y10S435/814 , Y10S435/826 , Y10S435/872
摘要: A new enzyme, cholesteroloxidase, is prepared by recovering same from microorganisms, preferably by washing a cholesterol-converting microorganism with butanol/water, disintegrating the microorganism culture and extracting same with a buffer solution containing a non-ionic surface-active agent, and isolating cholesterol oxidase from the extract.
摘要翻译: 通过从微生物中回收相应的新酶胆固醇氧化酶,优选通过用丁醇/水洗涤胆固醇转化微生物,分解微生物培养物并用含有非离子表面活性剂的缓冲液进行提取,并分离 来自提取物的胆固醇氧化酶。
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