The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 1977
Filed:
Nov. 20, 1975
Wolfgang Gruber, Tutzing-Unterzeismering, DT;
Hans Ulrich Bergmeyer, Tutzing, Upper Bavaria, DT;
Michael Nelboeck-Hochstetter, Tutzing, Upper Bavaria, DT;
Klaus Beaucamp, Tutzing, Upper Bavaria, DT;
Gunter Holz, Aichach, DT;
Johanna Gramsall, Tutzing, Upper Bavaria, DT;
Gunter Lang, Tutzing, Upper Bavaria, DT;
Boehringer Mannheim G.m.b.H., Mannheim-Waldhof, DT;
Abstract
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,