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:
Dec. 02, 1980
Filed:
Feb. 23, 1979
Applicant:
Inventor:
Hans E Grethlein, Hanover, NH (US);
Assignee:
Trustees of Dartmouth College, Hanover, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C13K / ; C12P / ; C12P / ; C12R / ;
U.S. Cl.
CPC ...
435 99 ; 127 29 ; 127 37 ; 435105 ; 435252 ;
Abstract
Processes for treating cellulosic substances prior to hydrolysis which lead to shortening hydrolysis time and to increasing sugar yield. As exemplary, an aqueous slurry of the cellulosic substance is acidified and heated to and maintained at a temperature to produce a change in the cellulosic structure; the heating period is controlled so that there is little glucose formation. The pretreated cellulose may be subsequently hydrolyzed by acid or enzyme.