Nonparametric evaluation of graphical sensory profiles for the analysis of carbonated raspberry beverages

Abstract

Sensory attributes of carbonated soft beverages were determined by graphical sensory profiles using 7 descriptors and their combinations. As the distribution of results was neither normal nor convertible into a normal one. sensory profiles were evaluated by nonparametric methods, either by double ranking or by multiplex pair comparisons which were presented in form of diagrams as well. Small differences in sensory profiles were detected in this way. Carbonated raspberry beverages sweetened with a mixture of USAL (Aspartam hydrochloride) and saccharin had similar characteristics to that sweetened with sucrose, and were better than those sweetened by either saccharin or USAL alone.