Methods and systems for processing a sucrose crop and sugar mixtures
View Patent ↗A method comprising: (a) providing a partially processed sucrose crop product containing at least 2% optionally at least 5% of the sucrose content of said crop at harvest on a dry solids basis, cellulose and lignin; (b) hydrolyzing said partially processed crop product with HCl to produce an acid hydrolyzate stream and a lignin stream; and (c) de-acidifying said hydrolyzate stream to produce a de-acidified sugar solution and an HCl recovery stream. Additional, methods, systems and sugar mixtures are also disclosed.
1. A hydrolysate mixture of sugars characterized by a ratio of fructose to mannose of at least 0.4, wherein said hydrolysate mixture further comprises hydroxymethylfurfural.
2. The hydrolysate mixture of sugars according to claim 1 , characterized in that said ratio of fructose to mannose does not exceed 4.8.
3. The hydrolysate mixture of sugars according to claim 1 , further characterized by a ratio of fructose to total dimeric sugars of at least 0.05.
4. The hydrolysate mixture of sugars according to claim 3 , characterized in that said ratio of fructose to total dimeric sugars does not exceed 0.6.
5. A hydrolysate mixture of sugars characterized by a ratio of fructose to xylose of at least 0.4, wherein said hydrolysate mixture further comprises hydroxymethylfurfural.
6. The hydrolysate mixture of sugars according to claim 5 , characterized in that said ratio of fructose to xylose does not exceed 4.6.
7. The hydrolysate mixture of sugars according to claim 6 , further characterized by a ratio of fructose to galactose of between 0.3 and 3.2.
8. The hydrolysate mixture of sugars according to claim 7 , further characterized by a ratio of fructose to total monomeric sugars of between 0.023 and 0.2.
9. The hydrolysate mixture of sugars according to claim 6 , further characterized by a ratio of fructose to total monomeric sugars of between 0.023 and 0.2.
10. A hydrolysate mixture of sugars characterized by a ratio of fructose to galactose of at least 0.3, wherein said hydrolysate mixture further comprises hydroxymethylfurfural.
11. The hydrolysate mixture of sugars according to claim 10 , characterized in that said ratio of fructose to galactose does not exceed 3.2.
12. A hydrolysate mixture of sugars characterized by a ratio of fructose to arabinose of at least 1.0, wherein said hydrolysate mixture further comprises hydroxymethylfurfural.
13. The hydrolysate mixture of sugars according to claim 12 , characterized in that said ratio of fructose to arabinose does not exceed 11.
14. A hydrolysate mixture of sugars characterized by a ratio of fructose to total monomeric sugars of at least 0.023, wherein said hydrolysate mixture further comprises hydroxymethylfurfural.
15. The hydrolysate mixture of sugars according to claim 14 , characterized in that said ratio of fructose to total monomeric sugars does not exceed 0.2.
16. The hydrolysate mixture of sugars according to claim 14 , characterized by a ratio of fructose to mannose of at least 0.4.
17. The hydrolysate mixture of sugars according to claim 14 , characterized by a ratio of fructose to xylose of at least 0.4.
18. The hydrolysate mixture of sugars according to claim 14 , characterized by a ratio of fructose to galactose of at least 0.3.
19. A method comprising:
(a) providing a fermentor; and
(b) fermenting a medium comprising the hydrolysate mixture of sugars according to any one of claim 1 , 5 , 10 , 12 , or 14 in the fermentor to produce a fermentation product.
20. An acid hydrolysate mixture of sugars characterized by a ratio of fructose to mannose of at least 0.4, wherein the acid hydrolysate mixture of sugars was produced by contacting a partially processed crop with an acid.