INVERTOSE

Invert sugar is a direct and indirect food ingredient. It is a mixture of two monosaccharides, glucose and fructose, which results from the hydrolysis of sucrose. Invert sugar is marketed as a component of invert syrups; these syrups also contain sucrose, the proportion depending on the extent of conversion. Invert syrups are considered to be invert sugar in this evaluation. Solids in "total" invert syrups contain 6 percent sucrose whereas those in "medium" invert syrups contain 39 percent sucrose. Invert syrup solids also contain 3 percent polysaccharides and less than 0.5 percent of the monosaccharide D-psicose (an epimer of fructose). The principal highfructose syrup currently sold in the United States is produced by the enzymatic isomerization of starch hydrolyzates, about 95 dextrose equivalent, and contains about the same proportions of dextrose and fructose as "total" invert syrups from sucrose on a dry solids basis. It also contains the di- and higher saccharides that were present in the starch hydrolyzates from which they were derived and less than 0.3 percent D-psicose. Dextrose-levulose syrup produced by the enzymatic isomerization of dextrose solutions contains, in addition to dextrose and levulose, less than 1 percent polysaccharides and less than 0.3 percent D-psicose.1 Invert sugar is a mixture of glucose and fructose that results from the hydrolysis of sucrose in accordance with good manufacturing practices. Invert sugar is marketed as invert sugar syrup and also contains dextrose (glucose), fructose, and sucrose in various amounts as represented by the manufacturer. Invert sugar syrup is a hygroscopic liquid that has a sweet taste. It is very soluble in water, in glycerin, and in glycols; and it is very sparingly soluble in acetone and in ethanol.