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. 13, 2013
Filed:
Jan. 02, 2009
Sasidhar Varanasi, Toledo, OH (US);
Kripa Rao, San Mateo, CA (US);
Patricia Ann Relue, Toledo, OH (US);
Dawei Yuan, Toledo, OH (US);
Sasidhar Varanasi, Toledo, OH (US);
Kripa Rao, San Mateo, CA (US);
Patricia Ann Relue, Toledo, OH (US);
Dawei Yuan, Toledo, OH (US);
The University of Toledo, Toledo, OH (US);
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 an inner of a xylose isomerase having a pH of 6 or above, and an outer region having a second enzymatic activity at an acidic pH.