Premium
Effect of Hydrothermal Treatment of Rapeseed on Antioxidant Capacity of the Pressed Rapeseed Oil
Author(s) -
SzydłowskaCzerniak Aleksandra,
Karlovits György,
SosnaSárdi Ágnes,
Dianoczki Csilla,
Szłyk Edward
Publication year - 2009
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-009-1407-2
Subject(s) - rapeseed , chemistry , response surface methodology , moisture , antioxidant capacity , food science , antioxidant , chromatography , biochemistry , organic chemistry
Response surface methodology (RSM) was used to evaluate the quantitative effects of two independent variables, rapeseed moisture content and conditioning temperature, on the antioxidant capacity (AC) and total phenolic (TPC), tocopherol (TTC), and phosphorus contents (PC) in the pressed rapeseed oils. The mean AC results for the crude rapeseed oils ranged from 199.8 to 947.2 µmolTE/100 g. TPC and PC in the crude rapeseed oils correlated significantly ( P < 0.01) and positively with AC of oils ( R 2 = 0.9498 and 0.4396, respectively). The experimental results of AC, TPC, and PC were close to the predicted values calculated from the polynomial response surface model equations ( R 2 = 0.9801, 0.9747 and 0.9165, respectively). The effect of oil processing temperature on AC and TPC was about 1.5 times greater than the effect of moisture level in rapeseed.