Methods and systems for processing sugar mixtures and resultant compositions

• US 10,240,217 B2
• Filed: 09/20/2013
• Issued: 03/26/2019
• Est. Priority Date: 09/02/2010
• Status: Active Grant

• Current Assignee: Virdia Ltd
• Original Assignee: Virdia, Inc. (Stora Enso Oyj)
• Inventors: Jansen, Robert, Eyal, Aharon
• Primary Examiner(s): Tichy, Jennifer M. H.
• Application Number:
  US14/033,205
• Publication Number:
  US 20140175331A1
• Time in Patent Office: 2,013 Days
• Field of Search: 435134
• CPC Class Codes: A23K 20/163 Sugars; Polysaccharides
• CPC Class Codes: A23K 50/10 for ruminants
• CPC Class Codes: C07H 1/00 Processes for the preparation of sugar derivatives
• CPC Class Codes: C07H 3/00 Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms preparation by hydrolysis of di-or polysaccharides C13; separation or purification of sucrose, glucose, fructose, lactose or maltose C13
• CPC Class Codes: C12P 7/10 substrate containing cellulosic material
• CPC Class Codes: C12P 7/14 Multiple stages of fermentation; Multiple types of microorganisms or re-use of microorganisms
• CPC Class Codes: C13K 1/00 Glucose separation from invert sugar C13K3/00; Glucose-containing syrups
• CPC Class Codes: C13K 1/02 obtained by saccharification of cellulosic materials manufacture of fodder A23K10/32
• CPC Class Codes: C13K 13/002 Xylose
• CPC Class Codes: C13K 13/007 Separation of sugars provided for in subclass C13K C13K3/00 takes precedence
• CPC Class Codes: Y02E 50/10 Biofuels, e.g. bio-diesel
• CPC Class Codes: Y02E 50/30 Fuel from waste, e.g. synthetic alcohol or diesel
• CPC Class Codes: Y10T 428/13 Hollow or container type article [e.g., tube, vase, etc.]
• CPC Class Codes: Y10T 428/1352 Polymer or resin containing [i.e., natural or synthetic]
• CPC Class Codes: Y10T 428/139 Open-ended, self-supporting conduit, cylinder, or tube-type article
• CPC Class Codes: Y10T 442/60 Nonwoven fabric [i.e., nonwoven strand or fiber material]

Abstract

A method including: (a) selectively reacting a first sugar in a mixture which includes at least one second sugar to form a product mixture comprising a product of said first sugar; (b) separating said product of said first sugar from said product mixture; and (c) separating at least one of said at least one second sugar from said product mixture.

Claims

1. A lignocellulosic hydrolysate comprising:

(a) at least 60% xylose by weight relative to total sugar concentration;

(b) a total concentration of 0.00001% to 0.5% by weight relative to total sugar concentration of at least two marker molecules, wherein said marker molecules are selected from furfural, hydroxy-methylfurfural, and acetic acid;

(c) 0.001% to 10% oligosaccharides by weight relative to total sugar concentration; and

(d) at least 3% mannose by weight relative to total monosaccharides.

2. The lignocellulosic hydrolysate according to claim 1, comprising at least three marker molecules.

3. The lignocellulosic hydrolysate according to claim 1, comprising between 0.001% and 5% glucose of total sugars on a weight basis.

4. The lignocellulosic hydrolysate according to claim 1, comprising at least 0.001% arabinose of total sugars on a weight basis.

5. The lignocellulosic hydrolysate according to claim 1, wherein said oligosaccharides include at least one member selected from the group consisting of maltose, isomaltose and trehalose.

6. The lignocellulosic hydrolysate according to claim 1, wherein said oligosaccharides include at least one member selected from the group consisting of gentiobiose, sophorose and cellobiose.

7. The lignocellulosic hydrolysate according to claim 1, comprising at least one sugar selected from the group consisting of galactose and arabinose.

8. The lignocellulosic hydrolysate according to claim 1, comprising at least 5% galactose relative to total monosaccharides by weight.

9. The lignocellulosic hydrolysate according to claim 1, comprising at least 2% arabinose relative to total monosaccharides by weight.

10. The lignocellulosic hydrolysate according to claim 1, 3, or 9, wherein said marker molecules comprise furfural and hydroxy-methylfurfural.

11. The lignocellulosic hydrolysate according to claim 1, 3, 8, or 9, further comprising at least 100 PPB 2-ethylhexanol.

12. The lignocellulosic hydrolysate according to claim 1, comprising less than 90% of said xylose by weight relative to total sugar concentration.

13. The lignocellulosic hydrolysate according to claim 1, wherein said lignocellulosic hydrolysate is provided as an aqueous solution.

14. The lignocellulosic hydrolysate according to claim 13, wherein said lignocellulosic hydrolysate comprises at least 40% total sugars by weight.

15. The lignocellulosic hydrolysate according to claim 1, wherein said lignocellulosic hydrolysate has not been purified by crystallization.

16. The lignocellulosic hydrolysate according to claim 1, comprising at least 0.01% of said oligosaccharides by weight relative to total sugar concentration.

17. The lignocellulosic hydrolysate according to claim 1, comprising at least 0.1% of said oligosaccharides by weight relative to total sugar concentration.

18. The lignocellulosic hydrolysate according to claim 1 or 3, further comprising at least 100 PPB hexanol.

19. The lignocellulosic hydrolysate according to claim 1, wherein said marker molecules comprise acetic acid.

20. The lignocellulosic hydrolysate according to claim 1, further comprising levulinic acid or methanol.

21. A lignocellulosic hydrolysate comprising:

(a) at least 60% xylose by weight relative to total sugar concentration;

(b) a total concentration of 0.00001% to 0.5% by weight relative to total sugar concentration of at least three marker molecules, wherein said marker molecules are furfural, hydroxy-methylfurfural, and acetic acid;

(c) 0.001% to 10% oligosaccharides by weight relative to total sugar concentration;

(d) at least 2% arabinose by weight relative to total monosaccharides;

(e) at least 3% mannose by weight relative to total monosaccharides; and

(f) at least 100 PPB 2-ethylhexanol.

22. A lignocellulosic hydrolysate comprising:

(a) at least 60% xylose by weight relative to total sugar concentration;

(b) a total concentration of 0.00001% to 0.5% by weight relative to total sugar concentration of at least two marker molecules, wherein said marker molecules are selected from furfural, hydroxy-methylfurfural, and acetic acid;

(c) 0.001% to 10% oligosaccharides by weight relative to total sugar concentration; and

(d) at least 5% galactose by weight relative to total monosaccharides.