High fructose syrup and process for making same
AssigneeAnheuser-Busch, Incorporated
InventorsEdward Katz, Henry S. Davis, Barrett L. Scallet
Life of this patent
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Abstract
A non-crystallizing starch conversion syrup which is rich in fructose and a method of treating a syrup derived from corn or other starch to increase the fructose content of the syrup. The method involves the molecular separation of fructose from dextrose by treating a fructose-dextrose feed syrup. The first component stripped out by the separation process is a dextrose rich component containing most of the higher molecular weight sugars, and thereafter an enriched fraction is recovered which consists mostly of fructose, a lesser amount of dextrose, and only a trace of other sugars.
Claims20
A method of making a high fructose starch conversion syrup including the steps of passing a starch conversion feed syrup having a solids content of 10% to 70% and a dextrose content of above about 49% and a fructose content of above about 25% with less than about 10% higher molecular weight sugars through a molecular exclusion column containing polystyrene divinyl benzene resin in the calcium, barium or strontium form having about 2% to 12% cross-linkage and of about 20 to about 400 mesh in size, at a temperature of about 40.degree. to about 180.degree. F. and a flow rate of about 0.2 to about 6 gal./min./ft..sup.2 adding rinse water to the top of the column, recovering a first composite fraction containing about 50% to about 99% dextrose, about 1% to about 49% fructose and most of the higher sugars and recovering a second composite fraction consisting essentially of more than about 52% fructose, less than about 48% dextrose and less than about 2% higher molecular weight sugars.
A non-crystallizing syrup derived from a syrup having a D.E. of over 90 and a fructose content of less than 49%, said non-crystallizing syrup consisting essentially of, on a dry solids basis, from about 52% to about 95% fructose, less than about 48% dextrose and from about 0.5% to about 2% higher molecular weight sugars.
A process for producing a fructose rich non-crystallizing syrup derived from starch comprising the steps of:
- (a) passing a starch conversion syrup feed having on a dry solids basis more than 49% dextrose, about 25 to 51% fructose and about 0.1 to about 8% higher saccharides through a molecular exclusion column,
- (b) removing dextrose and higher saccharides from the syrup, and
- (c) recovering a product containing more than about 52% fructose, less than about 48% dextrose and less than about 2% higher saccharides.
Dependencies are inferred from the claim text.