For the taste perception, the ranking methods revealed that 54.0% of panel members (50 female students) discriminated significantly (r_s≥0.9, P<0.05) the difference of 0.05% concentration of salt in the range from 0.85 to 1.05% solutions, and 80.0% of them 0.5% concentration of sugar in the range from 8.0 to 10.0% solutions. For the taste preference, the choice methods revealed that they preferred 0.90% of salt significantly, while they tended to prefer from 8.5 to 9.5% of sugar.
There was a significant negative correlation between the ability to discriminate concentrations of salt, and the preference of the concentrations of it. A similar trend was also found on concentrations of sugar. On the other hand, there were significant positive correlations in the taste perception and the taste preference for sweetness between the results of sensory tests and those of questionnaires regarding taste awareness, while on the saltiness no significant correlation was found.