Phenolic profile and antioxidant capacity of some selected summer fruits from Pakistan

Hina Ali, Abdullah Ijaz Hussain

Abstract


This study was conducted to estimate the phenolic contents and antioxidant activity of some selected summer fruits i.e. guava, apple, melon and unripe mango from Pakistan. The methanol extract of each fruit was prepared using orbital shaker. Total phenolic contents (TPC) and total flavonoid contents (TFC) of fruits extracts were measured as gallic acid and catechin equivalent, respectively. Highest TPC (9.35 g/100g of dry fruit material, measured as gallic acid equivalent) was determined from melon extract while minimum TPC (6.12 g/100g of dry fruit material measured as gallic acid equivalent) was measured from guava extract. Unripe mango extract showed excellent DPPH radical scavenging activity (IC50 4.99 µg/mL) and percentage inhibition of linoleic acid oxidation (68.1%). Overall unripe mango, guava and melon extracts showed excellent reducing potential. Statistical analysis revealed significant differences in the antioxidant potential of different fruits extracts.

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