3. Results
3.1. Measurement of the SQI and relationship between the SQI and
preference (%)
A scatter plot matrix showed strong positive correlations between
the SQI, preference (%), and difference of acceptability scores
(Fig. 1). The correlation coefficients among the four variables of
Fig. 1 were provided in Table 2. The four variables were (overall
acceptability score), (preference percentage) at the end of 37 products
shelf life, (SQI) and (difference of acceptability scores) from
the beginning to the end of 37 products shelf life.