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 acidi

Document Type

Patent

Primary Class

C12N11/00; C12N1/18; C12P7/06

Application Number

13/955270

Filing Date

7-31-2013

Patent Number

US9528104

Assignee(s)

The University of Toledo

Publication Date

12-27-2016

Patent Country

United States

Language

en_US

Institution

The University of Toledo

Repository

University of Toledo Digital Libraries

Digital Publisher

Digital Initiatives

Rights

These materials are free of copyright restrictions and are in the public domain within the United States only. The USPTO reserves the right to assert copyright protection internationally.

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Rights Statement

Rights Statement

No Copyright - United States. URI: http://rightsstatements.org/vocab/NoC-US/1.0/
The organization that has made the Item available believes that the Item is in the Public Domain under the laws of the United States, but a determination was not made as to its copyright status under the copyright laws of other countries. The Item may not be in the Public Domain under the laws of other countries. Please refer to the organization that has made the Item available for more information.