Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES   OCTOBER-NOVEMBER 2007 , Volume 14 , Number 4; Page(s) 193 To 200.
 
Paper: 

ANTIOXIDATIVE EFFECT OF POMEGRANATE SEED PHENOLIC COMPONENDS ON SOYBEAN OIL

 
Author(s):  SAMAD LOUEI H.R., AZIZI M.H., BARZEGAR MOHSEN
 
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Abstract: 

The phenolic compounds of pomegranate seeds (ten varieties) were extracted by using acetone solvent and ultrasonic method for all cultivars. The concentrations of phenolic compounds in the extracts were determined according to the Folin-Ciocalteu method, and results were expressed as tannic acid equivalents per gram dry weight of sample (TAE/gdw). One cultivar with the highest amount of phenolic compound quantity (post sia variety) was selected and effect of its pomegranate seed extract (PSE) on stability of soybean oil was determined. PSE was effective in retarding oil deterioration at 60oC with an increase trend in activity when concentration ranged for 100-350 ppm. Peroxide and TBA value for 350 ppm levels of phenolic sample and control at twelve days was 60.69 meqO 2/1 Kg oil, 0.188 and 91 meqO 2/1 Kg oil, 0.36, respectively.

 
Keyword(s): POMEGRANATE, SOYBEAN OIL, PHENOLIC COMPONENT, ANTIOXIDANT
 
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