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:
Aug. 01, 1995
Filed:
Apr. 28, 1994
Applicant:
Inventors:
Elizabeth A Bodie, Belmont, CA (US);
William A Cuevas, San Francisco, CA (US);
Marja Koljonen, Kauniainen, FI;
Assignee:
Genencor International, Inc., Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; D21C / ; C07G / ;
U.S. Cl.
CPC ...
435200 ; 435278 ; 4352521 ; 435822 ; 536124 ;
Abstract
Five xylanases are purified from the microorganism, Microtetraspora flexuosa,preferably strain ATCC 35864. Each biochemically unique xylanase is thermostable and has optimal activity in alkaline conditions. These enzymes are excellent candidates for enhancing the delignification and bleaching of pulp. Furthermore, treating the pulp with the above enzymes prior to bleaching may reduce the amount of chlorine containing and/or peroxide chemicals required in the bleaching process.