04-07-2013 дата публикации
Номер: US20130167837A1
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; andless 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 ...
Подробнее