Table 3.
Effects of bovine colostrums protein on the formation of Thiobarbituric Acid Reactive Substances (TBARS) and conjugated dienes on low density lipoprotein (LDL) oxidation induced by Cu2+.
| Concentration (mg/mL) | Whey | Casein | Skimmed Milk | Whey | Casein | Skimmed Milk |
|---|---|---|---|---|---|---|
| TBARS (n mol/mL) | Lag Time * (min) | |||||
| Blank | 5.13 ± 0.01 a,* | 5.13 ± 0.01 a | 5.13 ± 0.01 a | 90–120 | 90–120 | 90–120 |
| 1 mg/mL | 4.19 ± 0.01 b | 4.07 ± 0.06 b | 4.72 ± 0.05 a | 180–210 | 150–180 | 120–150 |
| 0.1 mg/mL | 4.13 ± 0.05 b | 4.21 ± 0.09 b | 4.80 ± 0.14 a | 120–150 | 90–120 | 90–120 |
| 0.01 mg/mL | 4.42 ± 0.06 b | 4.53 ± 0.01 b | 4.72 ± 0.05 a | 90–120 | 90–120 | 90–120 |
| 0.001 mg/mL | 4.98 ± 0.02 a | 4.85 ± 0.05 a | 5.02 ± 0.06 a | - | - | - |
* Conjugated diene formation was measured by determining the absorbance at 234 nm every 30 min for 540 min. Each value is expressed as mean ± SE (n = 3). Means with different letters within a row are significantly different (p < 0.05).