However, the general tendency was to describe new prototypes as less sour than the control. The FS and CAM tended to be described as sweeter whereas RAS samples had lower agreement among consumers about whether to consider it sweeter than the control. In general, fortified samples tended to be perceived as less sour and sweeter than the control. The combination of these factors (sourness decrease and sweetness increase) suggests the possibility of binary taste interactions, which occurred in food matrices. In particular, the observed results could be explained taking into account that at low intensity/concentration of tastants the sourness has variable effects on sweetness