Table 1.

Fatty acids, tocopherols, and polyphenols contents in NSO and MTSO.

	NSO	MTSO
Fatty acid content (% of total Fatty acids)
Ʃ unsaturated fatty acids	82.85 ± 0.14	83.83 ± 4.26
Oleic acid C18:1n-9	22.76 ± 0.02	21.39 ± 0.02
Linoleic acid C18:2n-6	54.56 ± 0.14	56.77 ± 0.57
α-Linolenic acid C18:3n-3	1.54 ± 0.02	0.49 ± 0.01
Tocopherol content (mg/kg)
γ- Tocopherol	undetectable	92.00 ± 7.00 (220.88 ± 16.78 μmol/L)
α-Tocopherol	undetectable	202.00 ± 17.00 (468.67 ± 39.44 μmol/L)
Total Tocopherols Content	undetectable	274.00 ± 24.00
Polyphenol content (mg equivalent quercetin/kg of oil)
Thymoquinone	7.00 ± 0.58	Undetectable
Vanillin	2.30 ± 0.06	Undetectable
Homovanillic Acid	1.90 ± 0.00	Undetectable
Quercetin	1.30 ± 0.02	1.20 ± 0.04
Apigenin	undetectable	0.90 ± 0.10

Data are represented as mean ± SD. NSO: Nigella seed oils; MTSO: Milk Thistle seed oils.