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Articles by M.R. Akrami
Total Records ( 2 ) for M.R. Akrami
  M. Hajimahmoodi , N. Sadeghi , B. Jannat , M.R. Oveisi , S. Madani , M. Kiayi , M.R. Akrami and A.M. Ranjbar
  Antioxidant activity of methanolic (50%) extracts of olive pulp (Olea europaea L.) was investigated. Total antioxidant activity, phenolic contents and reducing power in six Iranian olive cultivars were determined. The highest antioxidant activity (28.699 mmol FeII/100 g dry plant), total phenolic contents (2997 mg gallic acid/100 g dry plant) and reducing power (8.331 g Vitamin E/100 g dry plant) were detected in Mishen and the lowest in Conservalina. A linear positive relationship existed between the antioxidant activity, total phenolic compounds (r2 = 0.976) and reducing power of the tested olive pulp (r2 = 0.848). Iranian olives possess relatively high antioxidant activity due to contribution of phenolic compounds. The present study shows that Iranian olive cultivars are strong radical scavengers and can be considered as good sources of natural antioxidants for medicinal and commercial uses.
  M. Hajimahmoodi , M.R. Oveisi , N. Sadeghi , B. Jannat , M. Hadjibabaie , E. Farahani , M.R. Akrami and R. Namdar
  This study compares the antioxidant activity of ten different pomegranate cultivars grown in Iran using the ferric reducing power assay (FRAP assay), which is based on the reduction of a ferric-tripyridyl triazine complex to its ferrous, colored form in the presence of antioxidants. Aqueous solutions of known Fe+2 concentration, in the range of 100-1000 ╬╝mol L-1 were used for calibration. The results showed that among pulp and peel fractions the sour alac and sweet white peel cultivars had more FRAP value respectively. The pomegranate peel extract had markedly higher antioxidant capacity than the pulp extract. The peel extract of sweet white peel cultivar appeared to have more potential as a health supplement rich in natural antioxidants compared to the pulp and peel extracts of other pomegranate cultivars.
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