The Effects of Different Extraction Methods on Antioxidant Properties, Chemical Composition, and Thermal Behavior of Black Seed (Nigella sativa L.) Oil

Table 2

Oil physiochemical properties obtained using two extraction methods.

Physiochemical properties	Supercritical fluid extraction	Cold press extraction
FFA (as oleic %)	5.98 ± 0.00	6.15 ± 0.00
SV (mg of KOH/g of oil)	243.52 ± 0.3	238.26 ± 0.67
IV (g of I2/100 g of oil)	115.1 ± 0.24	104.37 ± 0.43
PV (meq O2/kg oil)	3.4 ± 0.05	4.1 ± 0.15
Refractive index at (25°C)	1.47 ± 0.00	1.47 ± 0.00
Viscosity (mPa s)	6.26 ± 0.07	6.38 ± 0.08

Means of triplicate measurements in the same row ± standard deviation with different letters are significantly different ().