Process for manufacturing xylose
US5238826A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1990 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Jun 14, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/938
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Process for manufacture of D-xylose characterized by the fact that: PA0 in a first step, syrup of D-xylulose is subjected to an enzymatic isomerization in M.sub.3 providing a mixture of D-xylose and D-xylulose, PA0 in a second step, the abovesaid mixture is subjected to chromatographic treatment in M.sub.4 leading to at least two fractions of which one is highly enriched in D-xylose (fraction X.sub.1) et of which the other is highly enriched in D-xylulose (fraction X.sub.2), PA0 in a third step, the fraction X.sub.2 is recycled through a pipe P to M.sub.3, the D-xylose being recovered from the fraction X.sub.1, the latter can also be subjected directly to a hydrogenation step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.