Total Phenolic, Flavonoids, Tannin Content and Antioxidant Power of Some Iranian Pomegranate Flower Cultivars (Punica granatum L.)

Mannan Hajimahmoodi, Ghazaleh Moghaddam, Ali Mohammad Ranjbar, Hossein Khazani, Naficeh Sadeghi, Mohammad Reza Oveisi, Behrooz Jannat

Department of Biology, Tarbiat Moalem University, Tehran, Iran;.
Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran;.
Ministry of Health and Medical Education, Research Center, Tehran, Iran..

DOI: 10.4236/ajps.2013.49223                

Abstract

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).

Keywords

Pomegranate; Flower; Antioxidant; Phenolic; HPLC

Conflicts of Interest

The authors declare no conflicts of interest.

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