Drying allows water to be removed and food preserved, however, this operation can degrade color. Punamuña leaves are aromatic used for medicinal purposes in the Peruvian Andes. This research aimed determine model drying kinetics, diffusivity coefficient (Def), activation energy (Ea), color of punamuña leaves. A horizontal dryer was at 40, 50, 60 °C airspeed 1.0 0.5 m / s; kinetics modeled with ...