The effect of blanching and drying temperature
(50, 60 and 70C) on drying kinetics and rehydration ratio
of sweet potatoes was investigated. It was observed that
both the drying temperature and blanching affected the
drying time and rehydration ratio. The logarithmic model
showed the best fit to experimental drying data. The values
of effective moisture diffusivity and activation energy
ranged from 9.32 9 10-11 to 1.75 9 10-10 m2/s, and
22.7–23.2 kJ/mol, respectively