Table 1.
Effect of pre-incubation of particular vitamins with different concentrations on the formation of methemoglobin (as percentage mean ± SE) induced by nitrite in bovine blood samples
| Vitamin concentration (mmol L-1) |
||||
|---|---|---|---|---|
| Control | 5 | 10 | 20 | |
| Vitamin E | 21.56 ± 0.87 | 16.51 ± 0.52 | 13.67 ± 0.79* | 13.03 ± 0.46 |
| Vitamin C | 22.40 ± 2.02 | 12.57 ± 0.45* | 22.98 ± 0.31 | 46.30 ± 0.57* |
| Vitamin B1 | 19.38 ± 0.95 | 20.08 ± 1.63 | 18.92 ± 2.54 | 20.05 ± 0.67 |
| Vitamin E & C | 20.58 ± 1.09 | 14.38 ± 0.79* | 21.23 ± 0.97 | 25.53 ± 0.69* |
| Vitamin A | 23.12 ± 1.07 | 22.97 ± 1.54 | 26.90 ± 1.72 | 28.13 ± 3.34 |
*
indicates significant difference with the control group (P < 0.05).