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:
Jul. 17, 2001
Filed:
Nov. 01, 1999
Applicant:
Inventors:
Heikki Heikkilä, Espoo, FI;
Raimo Alen, Helsinki, FI;
Siru Kauko, Jyväskylä, FI;
Mirja Lindroos, Kirkkonummi, FI;
Juha Nurmi, Kirkkonummi, FI;
Päivi Sarmala, Kantvik, FI;
Matti Tylli, Kantvik, FI;
Assignee:
Xyrofin Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/9141 ; C07C 2/9149 ;
U.S. Cl.
CPC ...
C07C 2/9141 ; C07C 2/9149 ;
Abstract
The invention relates to a method of producing xylitol and erythritol from arabinoxylan-containing material. According to the invention, the arabinoxylan-containing material is hydrolyzed and xylose and arabinose are separated from the obtained hydrolysate, whereafter the xylose is reduced to xylitol, and the xylitol is recovered, and the arabinose is subjected to alkaline oxidation to obtain erythronic acid which is reduced to erythritol, and the erythritol is recovered.