a Sensory quality index defined as a ratio of the overall acceptability at the end of
the shelf life to that at the beginning of the shelf life.
b Preference percentage of the product at the end of shelf life over the product at
the beginning of the shelf life. c Difference from the overall acceptability score of the product at the end of shelf
life to that at the beginning of the shelf life.
d Overall acceptability score of the product at the end of shelf life