Encapsulated astaxanthin maintained the DPPH scavenging activity greater than 50% whereas the iron
chelating assay demonstrated the ability below 50%. Consumers (n ¼ 130) evaluated yogurt containing
astaxanthin beads for acceptability of appearance, colour, aroma, mouthfeel and overall liking. A binomial
(yes/no) scale was employed to evaluate overall acceptance and purchase intent. The results
revealed that overall liking score of yogurt with beads was over 6.0 (on the 9-point scale) with the
positive acceptance (86.2%) and purchase intent (95.6%). Logistic regression analysis indicated that
colour, aroma, taste and overall liking were significant factors affecting overall acceptance and purchase
intent of yogurt containing astaxanthin beads.