Table 1.
Change of Vitamin E profiles in sweet corn during germination.
Vitamin E Composition | Light treatment | Dark treatment | ||||||
---|---|---|---|---|---|---|---|---|
Stage1 | Stage2 | Stage 3 | Stage 4 | Stage 1 | Stage 2 | Stage 3 | Stage 4 | |
α-tocopherol | 2.02 ± 0.25a | 1.39 ± 0.15b | 0.80 ± 0.02c | 1.13 ± 0.07b | 1.25 ± 0.14b | 0.63 ± 0.04c | 0.60 ± 0.02c | 0.54 ± 0.03c |
α-tocotrienol | 0.76 ± 0.05a | 0.67 ± 0.07a | 0.47 ± 0.02bc | 0.47 ± 0.03bc | 0.51 ± 0.01b | 0.38 ± 0.02c | 0.39 ± 0.03c | 0.29 ± 0.04d |
β-tocopherol | 0.14 ± 0.001a | 0.16 ± 0.03a | 0.12 ± 0.01a | 0.13 ± 0.01a | 0.10 ± 0.005a | 0.09 ± 0.004a | 0.10 ± 0.008a | 0.09 ± 0.001a |
γ-tocopherol | 1.80 ± 0.19a | 0.83 ± 0.57b | 0.53 ± 0.06b | 0.52 ± 0.05b | 1.44 ± 0.09a | 0.71 ± 0.06b | 0.48 ± 0.03b | 0.34 ± 0.005b |
γ-tocotrienol | 3.14 ± 0.20a | 2.32 ± 0.47b | 1.75 ± 0.16bcd | 1.75 ± 0.21bcd | 2.29 ± 0.06bc | 1.60 ± 0.20bcd | 1.35 ± 0.29cd | 1.08 ± 0.12d |
δ-tocopherol | 0.24 ± 0.02a | 0.22 ± 0.01a | 0.16 ± 0.01cd | 0.16 ± 0.01cd | 0.21 ± 0.07b | 0.16 ± 0.005c | 0.18 ± 0.007c | 0.14 ± 0.002d |
δ-tocotrienol | 0.55 ± 0.04a | 0.49 ± 0.04a | 0.40 ± 0.01b | 0.38 ± 0.04b | 0.39 ± 0.008b | 0.35 ± 0.02bc | 0.42 ± 0.02b | 0.30 ± 0.01c |
Total | 9.08 ± 0.01a | 6.72 ± 0.38b | 4.36 ± 0.03c | 4.31 ± 0.08c | 6.20 ± 0.20b | 3.92 ± 0.30c | 3.67 ± 0.16c | 2.78 ± 0.20d |
Unit: mg/100 g DW; significance analysis was carried out within rows and data with different letters indicate significant difference at p < 0.05.