The Study of Interactions between Active Compounds of Coffee and Willow (Salix sp.) Bark Water Extract
Figure 5
Isobole curves for 50% reducing power activity (RED) of coffee and willow mixtures: (a) coffee with S. myrsinifolia; (b) coffee with S. purpurea. EC50-extract concentration (mg/mL) provided 50% of activity based on a dose-dependent mode of action.