Development of Lime Peel Powder by Hot Air Drying สุชาดา เลาหศิลป์สมจิตร์ รัตนชัย ศรีชารู และ ภัทราพร ยุธาชิต

Abstract

This research was conducted to investigate effects of drying conditions by using hot air oven on the qualities of lime peel powder and to optimize the optimal drying conditions for lime peel powder.  Drying conditions were drying temperature i.e. 50 and 100 ºC and drying time i.e. 3 and 7 h. Qualities of lime peel powder were bitterness and antioxidant activity. The results indicated the drying conditions did not affect bitterness but significantly affect to antioxidant activity of lime peel powder. The optimal drying temperature and drying time were 100 "C and 3 h, respectively. This drying condition demonstrated the highest antioxidant activity about 32.68 milligrams equivalent of ascorbic acid per gram lime peel powder (dry weight).