HIGH-FRUCTOSE RECTIFIED CONCENTRATE MUST

Rectified Concentrate Must (RCM) from grapes is a mix of glucose and f ructose in almost equal proportions. A substantial increase in the pro portion of fructose with respect to glucose by using enzymes is propos ed in this work. Glucose is converted enzymatically into gluconic acid . Soluble glucose-oxidase catalase is used. A 97% fructose sirup is ob tained. Sweetening power of High Fructose Rectified Concentrate Must ( HFRCM) is 30% higher than regular RCM. Relationship between glucose co ncentration, enzyme concentration, H2O2 supply and air supply are stud ied.