Title: Alternative Sweeteners

396 Buck
Figure 3 Production of 42% HFCS.
C. 55% High Fructose Corn Syrup
The refined glucose isomerase–treated liquor may be passed through fractionation
units to enrich the fructose content to 80–95%. This material is filtered and
refined by carbon and ion exchange treatment. It may be evaporated and provided
as a commercial product with properties similar to crystalline fructose in liquid
applications; however, more typically, this high fructose–containing syrup is
blended with the 42% HFCS to a concentration of about 55% fructose and evaporated
to become the commercial 55% HFCS. The dextrose from the fractionation
unit is fed back to the isomerization columns in the 42% HFCS process. This
process is shown in Fig. 5, and a comparison of the composition of these three
commercially available products is shown in Table 4.