اثر كلريد كلسيم و پرتوتابي UV-C بر كيفيت و عمر انباري ميوه هلو رقم البرتا

EFFECTS OF CACL2 AND UV-C IRRADIATION ON QUALITY AND STORAGE LIFE OF PEACH FRUITS (CV. ʹELBERTAʹ).

Peach fruits have climacteric respiration pattern and limited storage life in some cases. In order to increase the storage life of ʹElbertaʹ peach, fruits were treated with UV-C irradiation at 0, 5 and 15 min and then immersion of fruits in 0, 1 and 3% of CaCl2 solution. The experiment was carried out in a completely randomized design with factorial arrangements with three replications. The quality factors including flesh firmness, TSS, TA, TSS/TA, pH, weight loss and decay of fruits were measured. The results showed that the firmness of fruit irradiated for 15 min with UV-C were more than of fruits treated for 5 min and controls. Also irradiation had a significant effect on amount of decay and the decay was observed severely in controls. Irradiation was not effective on the other attributes. The firmness of fruit treated with 3% CaCl2 was more than that of controls and those that immersed fruit in 1% CaCl2. With increasing the concentration CaCl2, the TA was increased. The effect of CaCl2 on the percent of weight loss and decay was significant. The minimum of weight loss and decay was belong to the 3% CaCl2. The CaCl2 treatment did not have any significant effect on the other attributes.