Claims
- 1. A process for obtaining a sugar which is either glucose or maltose from thinned starch comprising hydrolyzing a feedstock of thinned starch under the action of a glucose- or maltose-producing enzyme to a product containing from about 50% to 92% of said sugar, separating the product into a sugar-enriched stream, containing at least 90% sugar, and a sugar-depleted stream, recovering the sugar-enriched stream, and recycling the sugar-depleted stream to a hydrolysis zone.
- 2. The process of claim 1 where the feedstock contains from about 30% to about 45% dry solids.
- 3. The process of claim 1 where the product of hydrolysis contains from about 60% to about 85% sugar.
- 4. The process of claim 3 where the product of hydrolysis contains from about 70% to about 80% sugar.
- 5. The process of claim 1 where the hydrolysis is catalyzed by a soluble enzyme.
- 6. The process of claim 1 where the hydrolysis is catalyzed by an immobilized enzyme.
- 7. The process of claim 1 where the enzyme is amyloglucosidase and the sugar is glucose.
- 8. The process of claim 1 where the enzyme is beta-amylase and the sugar is maltose.
- 9. The process of claim 1 where the sugar-enriched stream contains at least about 94% sugar.
- 10. The process of claim 1 where a membrane-based separation is utilized.
- 11. The process of claim 1 where a solid adsorbent-based separation is utilized.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of our copending application Ser. No. 486,479, filed Apr. 19, 1983, abandoned which is incorporated herein by reference.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4243750 |
Muller et al. |
Jan 1981 |
|
4306023 |
Crombie |
Dec 1981 |
|
4511654 |
Rohrbach et al. |
Apr 1985 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
486479 |
Apr 1983 |
|