Table 2

Plasma tocopherols (T) concentrations after supplementation with the α-tocopherol or tocotrienol-rich fraction (TRF) treatments (Mean values ± SEM, n = 10).

α-T

TRF

α-T

γ-T

α-T

γ-T

μM

0 h*

23.38 ± 1.03

0.36 ± 0.12

22.95 ± 1.26

0.35 ± 0.15

2 h

26.31 ± 1.81

0.63 ± 0.15

22.98 ± 1.20

0.57 ± 0.18

Change^†

2.90 ± 1.63

0.29 ± 0.14

0.05 ± 0.65

0.22 ± 0.17

4 h

32.65 ± 2.49^‡

1.42 ± 0.12^‡

26.45 ± 1.89^‡

1.70 ± 0.28^‡

Change

9.26 ± 1.00

1.06 ± 0.17

3.51 ± 1.23

1.34 ± 0.34

5 h

36.38 ± 3.17^‡

1.64 ± 0.15^‡

28.15 ± 2.61^‡

1.96 ± 0.40^‡

Change

12.98 ± 2.79

1.27 ± 0.22

5.20 ± 1.93

1.61 ± 0.46

6 h

37.4 ± 3.51^‡

1.57 ± 0.17^‡

30.13 ± 2.91^‡

2.15 ± 0.41^‡

Change

14.00 ± 3.25

1.22 ± 0.19

7.17 ± 2.18

1.80 ± 0.48

8 h

37.8 ± 3.59^‡

1.48 ± 0.27^‡

29.79 ± 2.30^‡

1.76 ± 0.22^‡

Change

14.39 ± 3.32

1.13 ± 0.29

6.85 ± 1.39

1.42 ± 0.29

24 h

32.92 ± 3.58

0.35 ± 0.16

26.79 ± 1.81

0.20 ± 0.11

Change

9.52 ± 3.41

-0.02 ± 0.17

3.83 ± 1.07

-0.14 ± 0.19

AUC 24 h

353.52 ± 30.40^§

9.92 ± 1.68

286.16 ± 19.85^§

11.10 ± 1.47

T, tocopherols; TRF, tocotrienol-rich fraction; AUC, area under the curve (arbitrary unit); α-T, alpha-tocopherol; γ-T, γ-tocopherol.

* No significant differences in plasma α-T and γ-T concentrations at baseline (0 h) were found between the treatments.

† Changes were calculated as the difference between values at each postprandial interval and baseline (0 h).

‡ Significant increment from baseline (0 h) value, P < 0.05 (Wilcoxon's signed-ranks test).

§ Significant difference of AUC for α-T between the treatments, P < 0.05 (Wilcoxon's signed-ranks test).

Fairus et al. Nutrition Journal 2012 11:5   doi:10.1186/1475-2891-11-5