d 5 min prior to loading of samples to allow the heated air to stabilize at the desired temperatures (60, 70, 80 and
90 C) both in hot-air and SMIR drying, respectively. The weight of jujube slices during drying experiment was measured by the digital top pan balance. The drying process would not stop until the equilibrium moisture content was achieved. Drying experiments were conducted in triplicate.