Concentration–response curve of sucrose–xylose (a), sucrose–tagatose (b), sucrose–erythritol (c), sucrose–sucralose (d), and sucrose–stevia (e) inmilk system. 1x denotes the actual
percent concentration of the target sweetener; y denotes the perceived sweetness intensity. 2 The actual sweetener concentration levels corresponding to the sucrose concentration
levels are indicated in Table 1.