COMPOSITIONS COMPRISING C5 AND C6 MONOSACCHARIDES
Compositions comprising C5 and C6 monosaccharides and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.
1 . A composition, comprising:
at least one C6 monosaccharide hydrolysate; and
less than about 6750 ppm in total by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.
2 . A composition of claim 1 ,
wherein said C6 monosaccharide hydrolysate is extracted from lignocellulosic biomass.
3 . A composition of claim 2 ,
wherein said C6 monosaccharide hydrolysate is processed from lignocellulosic biomass using supercritical, subcritical, or near critical fluid extraction, or a combination thereof.
4 . A composition of claim 1 , further comprising:
water.
5 . A composition of claim 1 ,
wherein said C6 monosaccharide hydrolysate is present at a concentration of at least about 0.5 g/L.
6 . A composition of claim 1 ,
wherein said C6 monosaccharide is glucose, galactose, mannose, fructose, or a mixture thereof.
7 . A composition of claim 1 , further comprising:
less than about 10 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of aluminum.
8 . A composition of claim 1 , further comprising:
less than about 350 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of calcium.
9 . A composition of claim 1 , further comprising:
less than about 425 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of iron.
10 . A composition of claim 1 , further comprising:
less than about 4500 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of sulfur.
11 . A composition of claim 1 ,
wherein the weight ratio of said C6 monosaccharide hydrolysate to said elements is greater than about 25:1.
12 . A composition of claim 1 ,
wherein level of said elements are measured by inductively coupled plasma emission spectroscopy.
13 . A composition of claim 1 , further comprising:
less than about 1500 mg of nitrogen per kg of total weight of water-soluble C6 saccharides.
14 . A composition of claim 1 , further comprising:
a weight ratio of the total mass of hydrogen and nitrogen to carbon of less than about 0.17.
15 . A composition of claim 1 , further comprising:
at least one water-soluble C6 oligosaccharide having a degree of polymerization of about 2 to about 15.
16 . A composition, comprising:
at least one C6 monosaccharide hydrolysate;
less than about 10 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of aluminum;
less than about 350 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of calcium;
less than about 425 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of iron; and
less than about 4500 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of sulfur.
17 . A composition of claim 16 , further comprising:
less than about 6750 ppm in total by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.
18 . A composition, comprising:
at least one C6 monosaccharide hydrolysate; and
less than about 10 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of aluminum.
19 . A composition of claim 18 , further comprising:
less than about 6750 ppm in total by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.
20 . A composition, comprising:
at least one C6 monosaccharide hydrolysate;
less than about 350 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of calcium; and
less than about 6750 ppm in total by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.
21 . (canceled)
22 . A composition, comprising:
at least one C6 monosaccharide hydrolysate;
less than about 425 mg, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of iron; and
less than about 6750 ppm in total by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.
23 . (canceled)
24 . A composition, comprising:
at least one C6 monosaccharide hydrolysate; and
less than about 4500 ppm by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of sulfur.
25 . A composition of claim 24 , further comprising:
less than about 6750 ppm in total by weight, based on total weight of water-soluble C6 saccharide hydrolysate in said composition, of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.