Effect of Hydrothermal Treatment of Rapeseed on Antioxidant Capacity of the Pressed Rapeseed Oil |
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| Authors: | Aleksandra Szyd?owska-Czerniak György Karlovits Ágnes Sosna-Sárdi Csilla Dianoczki Edward Sz?yk |
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| Affiliation: | (1) Faculty of Chemistry, Nicolaus Copernicus University, ul. Gagarina 7, 87-100 Toruń, Poland;(2) Bunge Europe Research and Development Center, ul. Niepodległości 42, 88-150 Kruszwica, Poland;(3) Bunge Europe, Research and Development Center, Kvassay J. ut. 1, 1095 Budapest, Hungary |
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| Abstract: | 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. |
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| Keywords: | Rapeseed Crude rapeseed oils Antioxidant capacity Response surface methodology |
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