The experiments were carried out at the Science and Technology Agroindustry Department of UFPel/Pelotas, with the objective to improve the use of polyethylene packing of low density (PPLD) and the adsorption of ethylene, in Fuyu persimmons. During the season of 00/01, the fruits were stored without packing, in 0,022 mm PPLD packing with capacity for 12 or 40 fruits and in 0,033 mm PPLD packing with capacity for 12 units. Except for the control treatment, all the other treatments were combined with (50%) or without (50%) ethylene absorption. According to the analyzed variables (physiological disorders, CO2 and ethylene concentration/production), indicated that the persimmons stored in 0,022 mm bags containing 12 fruits, with or without the ethylene absorption, were found in a condition of less advanced ripening and with better quality compared to the other treatments. In the season 01/02, under the same parameters tested in the last season, the storage without packing and the storage in 0,022mm PPLD with 12, 18 and 24 fruits, with and without the use of ethylene absorption were tested. After 90 days of refrigerated storage (R.S.), plus 5 days in simulated trading condition (22 ± 3 °C and 75 ± 5% of RH), the fruits kept in the packing of 0,022mm with 12 and 18 fruits, with or without the ethylene absorption produced the best results in all tested variables.
Diospyrus kaki L.; PPLD; chilling injury; quality
