SWEETNESS OF LACTULOSE RELATIVE TO SUCROSE

摘要

ABSTRACTThe sweetness of lactulose over the range of concentration 5–35 (W/V), measured by a trained panel using paired comparison with standard reference solutions of sucrose of varying concentrations, is 48 to 62 of that of sucrose. In addition, sensitivity thresholds and recognition thresholds for sweetness of lactulose and sucrose were determined by a rating‐scale method. The sweetness of a mix ture containing 10 (W/V) lactulose and 5 (W/V) sucrose showed a synergistic effect of 22, and a mixture of 5 (W/V) lactulose and 2.5 (W/V) sucrose showed 12 synergism. Partial hydrolysis of lactulose to give a mixture containing 5 (W/V) lactulose, 2.5 (W/V) galactose, and 2.5 (W/V) fructose caused a 6 synergistic effect on sweetn