The experiments were performed to determine the effects of different drying temperatures on the
evolutions of β-carotene and lycopene in the Gac aril. It was evidenced that the drying temperature had a
significant influence on the losses of β-carotene and lycopene in Gac aril. No significant differences in
redness and yellowness values of the fresh and dried Gac aril were observed. Overall, drying at 60°C is a
recommended process for production of natural food colorant as it provided the highest retention of β-
carotene and lycopene.