Patent · US Active

System for simultaneous isomerization and fermentation of sugars

US9528104B2 · kind B2 · utility

1Cited by

16References

13Claims

0Family size

Assignee

The University of Toledo · US

Inventors

Sasidhar Varanasi · Toledo, US
Kripa Rao · San Mateo, US
Patricia Relue · Toledo, US
Dawei Yuan · Toledo, US

Key dates

Filing date	Jul 31, 2013
Grant date	Dec 27, 2016
Priority date	—
Expiry date	Jul 31, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/10
WIPO fieldBiotechnology
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.