Isoglucose and Fructose Syrups They are syrups obtained by converting starch first to dextrose and then to fructose by enzymatic isomenization. Our Products → Fructose – glucose syrup (TF 42) → Fructose – glucose syrup (TF 55) → Glucose – fructose syrup (TF 20) → Glucose – fructose syrup (TF 30) → High fructose syrup (F 85) Usage Areas → Carbonated and soft drinks → Halva → Turkish Delight → Fruit juices → Fruit sodas → Jam → Sauces → Sweets with syrup → Grape syrup