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:
Jan. 02, 2018
Filed:
Dec. 22, 2016
Applicant:
The University of Toledo, Toledo, OH (US);
Inventors:
Sasidhar Varanasi, Toledo, OH (US);
Kripa Rao, San Mateo, CA (US);
Patricia Ann Relue, Toledo, OH (US);
Dawei Yuan, Toledo, OH (US);
Assignee:
The University of Toledo, Toledo, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N 11/00 (2006.01); C12N 1/18 (2006.01); C12P 7/06 (2006.01); C12M 1/40 (2006.01); C12N 1/16 (2006.01); C12P 7/14 (2006.01); C12M 1/00 (2006.01); C12N 11/18 (2006.01);
U.S. Cl.
CPC ...
C12M 21/18 (2013.01); C12M 21/12 (2013.01); C12N 1/16 (2013.01); C12N 11/18 (2013.01); C12P 7/14 (2013.01);
Abstract
Methods and systems for the isomerization and fermentation of xylose and hexose sugars using an immobilized enzyme system capable of sustaining two different pH microenvironments in a single vessel are disclosed. Bilayer particles are dispersed in a mixture comprising an ionic borate source and xylose. The bilayer particles have a first region with a first enzymatic activity comprising xylose isomerase and a pH of 6 or above, and a second region having a second enzymatic activity at an acidic pH.