Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1385
10
1
gregorian
2007
1
1
9
1
online
1
fulltext
en
Total Phenolic Contents and Antioxidant Activity of Pomegranate (Punica granatum L.) Peel Extracts
The phenolic compounds of pomegranate (Punica granatum L.) peel extracted by two methods (solvent and ultrasound-assisted) with five solvents (acetone, methanol, ethanol, water and ethyl acetate) were compared with supercritical fluid extraction (SFE). The total phenolic compounds were determined according to the Folin-Ciocalteu reagent using tannic acid as standard. The overall results showed that acetone with sonication produced the maximum amount of phenolic compounds from pomegranate peel extracts (PPE). Furthermore, the effect of the acetone extract of pomegranate peel (0.010-0.050 %) on the stability of soybean oil during heating at 60oC (oven test method) was determined by measuring peroxide and thiobarbitoric acid values. At a 0.050 % level of pomegranate peel extract, its antioxidant activity was greater than 0.02 % of the two synthetic antioxidants butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT). The pomegranate peel extract possessed a relatively high antioxidant activity and might be considered as a rich source of natural antioxidant.
SFE,Solvent extraction,Phenolic compounds,Pomegranate peel,Sonication
35
42
http://jast.modares.ac.ir/browse.php?a_code=A-10-1000-5935&slc_lang=en&sid=23
P.
Yasoubi
P.
Yasoubi
100319475328460045383
100319475328460045383
No
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
M.
Barzegar
M.
Barzegar
100319475328460045384
100319475328460045384
Yes
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
M. A.
Sahari
M. A.
Sahari
100319475328460045385
100319475328460045385
No
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
M. H.
Azizi
M. H.
Azizi
100319475328460045386
100319475328460045386
No
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.
Department of Food Technology, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of
Iran.