TITLE:
Total Phenolic, Flavonoids, Tannin Content and Antioxidant Power of Some Iranian Pomegranate Flower Cultivars (Punica granatum L.)
AUTHORS:
Mannan Hajimahmoodi, Ghazaleh Moghaddam, Ali Mohammad Ranjbar, Hossein Khazani, Naficeh Sadeghi, Mohammad Reza Oveisi, Behrooz Jannat
KEYWORDS:
Pomegranate; Flower; Antioxidant; Phenolic; HPLC
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.4 No.9,
August
29,
2013
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).