Evaluation of apricot (Prunus armeniaca L.) antioxidant changes during storage at cold room

Apricot fruit consumption increased during past decades because of fruit is a rich source of carotenoids، polyphenol compounds، micro and macro element and vitamins. Current study was carried out to monitored quality changes during fruit ripening and post-harvest period. ‘Asgarabadi’ cultivar fruit was stored at 1 0C and sampling was carried out in 0، 1، 7، 14 and 21 days. Some fruit quality attributes such as soluble solid content (SSC)، titrable acidity (TA)، carotenoid content، flesh color، total phenol (TP) and fruit antioxidant activity was monitored. SSC increased from 15. 5 to 17. 7 during experiment while TA was decreased. Carotenoid content was increased and it was accompanied with decrease in color index. TP was 101 mg Gallic acid in 100 g of fresh weight and there were no significant changes during experiment. The evaluation of result indicated that low temperature storage prolonged fruit postharvest life، maintain TP content and improved carotenoid content and color although some antioxidant parameters decreased