摘要
Recently, pomegranate (Punica granatum L.) was demonstrated to be high in antioxidant activity and strong in phenolic, flavonoid and tannin contents in its fruit, flower and also aerial part. In this paper six cultivars of Iranian pomegranate flower including Ghojagh, Rabbab, Malas, Shishegap, Danesiah and Golnar have been investigated. The maximum amount of total phenolic was detected in Ghojagh (25.94 mg·GAEg-1) and flavonoid showed the highest content in Danesiah (23.06 mg·CEg-1). The lowest content of these two groups was observed in Golnar (15.19 mg·GAEg-1 and 11.46 mg·CEg-1). Measurement of tannin compounds showed that Rabbab by 2.03% and Golnar by 1.06% have the highest and lowest amount respectively. According to the FRAP method, Ghojagh and Golnar have the highest and lowest antioxidant values respectively (452.53 mmol·g-1 and 123.39 mmol·g-1). As a result of HPLC-DPPH method, Malas and Danesiah have the highest and lowest antioxidant value (116.38 and 97.64 mgVEEg-1).
Recently, pomegranate (Punica granatum L.) was demonstrated to be high in antioxidant activity and strong in phenolic, flavonoid and tannin contents in its fruit, flower and also aerial part. In this paper six cultivars of Iranian pomegranate flower including Ghojagh, Rabbab, Malas, Shishegap, Danesiah and Golnar have been investigated. The maximum amount of total phenolic was detected in Ghojagh (25.94 mg·GAEg-1) and flavonoid showed the highest content in Danesiah (23.06 mg·CEg-1). The lowest content of these two groups was observed in Golnar (15.19 mg·GAEg-1 and 11.46 mg·CEg-1). Measurement of tannin compounds showed that Rabbab by 2.03% and Golnar by 1.06% have the highest and lowest amount respectively. According to the FRAP method, Ghojagh and Golnar have the highest and lowest antioxidant values respectively (452.53 mmol·g-1 and 123.39 mmol·g-1). As a result of HPLC-DPPH method, Malas and Danesiah have the highest and lowest antioxidant value (116.38 and 97.64 mgVEEg-1).
