Method for glucose isomerization using xylose isomerase purified

Details Method for glucose isomerization using xylose isomerase purified Method for glucose isomerization using xylose isomerase purified

1993-04-13

1993-12-07

Naff, David M.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

435223, 435174, C12P 1924, C12N 1100, C12N 958

Patent

active

052682803

ABSTRACT:
This invention is in the field of glucose isomerization enzymes. More specifically, the invention is directed to a novel xylose isomerase, a process for the preparation of this enzyme, the use of this enzyme in glucose isomerization processes, and glucose isomerization processes.
The enzyme is preferrably derived from Thermotoga maritima or Thermotoga neapolitana. The enzyme has a temperature optimum above 90.degree. C., pH optimum in the range of from 6 to 7 and a residual activity at 90.degree. C. of more than 40% after 30 minutes and/or residual activity at 98.degree. C. of more than 20% after 30 minutes. The enzyme can also be in immobilized form.

REFERENCES:
patent: 3868304 (1975-02-01), Messing
patent: 3941655 (1976-03-01), Heady et al.
patent: 4593001 (1986-06-01), Horwath
patent: 4687742 (1987-08-01), Skoet et al.
patent: 5041378 (1991-08-01), Drummond et al.

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