A robust stripping method for the removal of minor components from edible oils

Table 1 Tocol concentration (mg/kg of oil) in the original, column stripped, and simplified stripped method (1 h, 2 h, and 1 h twice) of camelina seed, chia seed, sophia seed, corn, olive oils, and DHASCO^1,2

Tocols	Non-stripped oils	Column stripped oils	Simplyfied stripped oil (1 h)	Simplyfied stripped oil (2 h)	Simplyfied stripped oil (2 × 1 h)
	Camelina Seed Oil
α-tocopherol	114.73 ± 2.95^a	nd	8.26 ± 0.58^b	nd	2.10 ± 0.00^c
β/γ-tocopherol	677.40 ± 17.73^a	nd	12.53 ± 0.00^b	nd	4.21 ± 0.11^c
δ-tocopherol	470.41 ± 48.21^a	nd	nd	nd	nd
Total tocols	1262.54 ± 68.89^a	nd	20.79 ± 0.58^b	nd	6.31 ± 0.11^c
	Chia Seed Oil
α-tocopherol	10.94 ± 1.65^a	nd	nd	nd	nd
β/γ-tocopherol	282.68 ± 1.21^a	nd	nd	nd	nd
δ-tocopherol	47.44 ± 1.21^a	nd	0.01 ± 0.0^b	nd	nd
Total tocols	341.06 ± 4.07^a	nd	0.01 ± 0.0^b	nd	nd
	Sophia Seed Oil
α-tocopherol	tr	nd	nd	nd	nd
β/γ-tocopherol	977.52 ± 4.37^a	nd	2.14 ± 0.01^b	nd	1.50 ± 0.01^c
δ-tocopherol	173.41 ± 5.98^a	nd	1.47 ± 0.13^c	tr	2.73 ± 0.01^b
Total tocols	1150.93 ± 10.35^a	nd	3.63 ± 0.14^c	tr	4.23 ± 0.02^b
	Corn Oil
α-tocopherol	64.47 ± 3.26^a	nd	nd	nd	nd
β/γ-tocopherol	445.99 ± 4.65^a	nd	nd	nd	nd
δ-tocopherol	28.43 ± 4.81^a	nd	0.61 ± 0.01^b	nd	nd
Total tocols	538.89 ± 12.78^a	nd	0.61 ± 0.01^b	nd	nd
	Olive Oil
α-tocopherol	179.98 ± 7.09^a	nd	nd	nd	0.89 ± 0.01^b
β/γ-tocopherol	28.30 ± 7.50^a	nd	nd	nd	nd
δ-tocopherol	nd ^a	nd	nd	nd	nd
Total tocols	208.28 ± 14.59^a	nd	nd	nd	0.89 ± 0.01^b
	DHASCO
α-tocopherol	759.28 ± 3.10	nd	nd	nd	nd
β/γ-tocopherol	202.07 ± 3.89^a	nd	nd	nd	6.12 ± 0.02^b
δ-tocopherol	250.63 ± 1.36^a	nd	nd	tr	2.17 ± 0.02^b
Total tocols	1211.98 ± 8.35^a	nd	nd	tr	8.29 ± 0.02^b

¹Values are mean of triplicate determination ±standard deviation. Values with different superscript in each row are significantly different from each other (P < 0.05)
²Abbreviation: nd not detected, tr trace (< 0.02)
Values in each row with different letters are significantly different from one another

ISSN: 2661-8974