Fruit quality, bioactive compounds and antioxidant capacity of 6 Iranian peach cultivars

Abstract

Knowledge of fruit biochemical properties is very important for perception ofproduct behavior during harvesting, transportation, packaging, storing and regenerationprograms. In this study, physicochemical properties of fruit in 6 Iranian peach cultivars:‘Tak-daneh’, ’Zoodras’, ‘Anjiri-ye-khouni’, ‘Haj-kazemi’, ‘Zaferani’ and ‘Kosari’ weredetermined. For evaluation of antioxidant capacity and its relation with total phenolicsand flavonoids, total antioxidant capacity [measured with 3 methods: ferric-reducingantioxidant potential (FRAP), 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2, 2-azinobis (3-ethylbenzothiazoline-6- sulfonic acid) radical scavenging assay (ABTS)] and totalphenolics and flavonoids in fruits extracts of aforementioned peach cultivars weremeasured and then, correlation of these parameters were evaluated. The highest °Brix anddry matter content among the studied cultivars corresponded to ‘Anjiri-ye-khouni’ andthe highest fruit humidity correlated to ’Zoodras’ and ‘Haj-kazemi’. The highest values ofvitamin C corresponded to ‘Anjiri-ye-khouni’ and ’Zoodras’ had the lowest vitamin C.Total ascorbic acid content was higher, then reported for other peach cultivars in the literature cited. Results revealed that ‘Anjiri-ye-khouni’ among the studied cultivars hadthe best antioxidant activity, flavonoid content and fruit quality attributes.