Table 2.
Contents of tocopherols and phytosterols in four rapeseed oils
Samples | RO1 | RO2 | RO3 | CRO |
---|---|---|---|---|
Tocopherols (mg/100 g) | ||||
α-T | 29.38 ± 0.57a | 30.13 ± 0.61a | 29.09 ± 0.44a | 30.30 ± 0.89a |
β-T | 5.44 ± 0.11b | 6.05 ± 0.13a | 3.94 ± 0.14c | 4.19 ± 0.02c |
γ-T | 64.00 ± 1.52a | 63.30 ± 1.15a | 65.46 ± 1.84a | 63.78 ± 1.17a |
δ-T | 1.07 ± 0.17ab | 0.52 ± 0.45b | 0.13 ± 0.20c | 0.51 ± 0.03b |
Total tocopherols | 99.50 ± 2.73a | 100.00 ± 2.08a | 98.77 ± 1.95a | 98.78 ± 2.00a |
Phytosterols (mg/g) | ||||
Brassicasterols | 1.03 ± 0.05a | 0.99 ± 0.04a | 1.01 ± 0.04a | 1.04 ± 0.01a |
Campesterols | 1.82 ± 0.03a | 1.82 ± 0.10a | 1.80 ± 0.001a | 1.81 ± 0.10a |
Stigmasterols | 0.24 ± 0.03a | 0.21 ± 0.02a | 0.21 ± 0.01a | 0.22 ± 0.01a |
β-Sitosterols | 2.25 ± 0.02a | 2.22 ± 0.02a | 2.20 ± 0.03a | 2.17 ± 0.04a |
Total phytosterols | 5.34 ± 0.08a | 5.24 ± 0.11a | 5.22 ± 0.002a | 5.25 ± 0.07a |
Superscripts with a different letter in the same line are significantly different (p < 0.05)
RO1, rapeseed oil with 5.9% linolenic acid; RO2, rapeseed oil with 8.4% linolenic acid; RO3, rapeseed oil with 10.8% linolenic acid; CRO, commercial rapeseed oil; α-T, α-tocopherols; β-T, β-tocopherols; δ-T, δ-tocopherols; γ-T, γ-tocopherols