During osmotic treatment, when temperature
increased then loss of water and uptake of solid took
place (Saurel et al., 1994; Ispir and Toğrul, 2009). In
the literature of osmotic treatment, temperature around
50°C had been used for vegetables and fruits due to the
subsequent reasons: 1) this reasonable temperature
confined the deterioration of flavor, texture, and
thermosensible compounds of the materials, 2)
enzymatic browning and flavor deterioration of fruits
start at temperature of 49°C (Ponting et al., 1966), and
3) this temperature was also efficient to maintain the
viscosity of the solution and adequate infusion time
without changing the fruit quality.