Özet:

This research was carried out to determine pH, soluble solids content, titratable acidity, vitamin C, total phenolic, total flavonoid and antioxidant activity (according to DPPH and FRAP assays) of different fruit parts of ‘Eşme’ quince cultivar. pH, soluble solids content, titratable acidity, vitamin C, total phenolic, total flavonoid and antioxidant activity in the different fruit parts of ‘Eşme’ quince cultivar was determined from 3.57 (pulp) to 4.03 (peel), 5.40% (peel) to 12.22% (pulp), 0.21% (peel) to 0.78% (pulp), 11.68 (flesh) mg 100 g-1 to 202.27 (peel) mg 100 g-1, 56.78 (pulp) mg 100 g-1 to 974.32 (peel) mg 100 g-1, 39.89 (pulp) mg 100 g-1 to 291.10 (peel) mg 100 g-1, 0.06 mmol 100 g-1 (pulp) to 0.82 (peel) mmol 100 g-1 and 0.30 (pulp) mmol 100 g-1 to 2.74 (peel) mmol 100 g-1, respectively. According to different fruit parts, a high positive relation was determined from total phenolic to antioxidant activity (according to DPPH and FRAP assays R2=1.0 and R2=1.0, respectively) and total flavonoid to antioxidant activity (according to DPPH and FRAP assays R2=1.0 and R2=1.0, respectively). Consequently, in the peel of ‘Eşme’ quince cultivar was determined higher total phenolic, total flavonoid and, antioxidant activity than according to pulp and flesh.

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