Table 2.
Common indicators of oil quality for thermally processed soybean oils fed to broilers and pigs
| Soybean oil | M, % | I, % | U, % | FFA, % | OFA, % | PV, mEq/kg | TBARS, μmol/L | AnV |
|---|---|---|---|---|---|---|---|---|
| 22.5 °C-0 h | 0.02 | 0.02 | 0.42 | 0.1 | 0.96 | 0.4 | 79.83 | 1.2 |
| 45 °C-336 h | 0.02 | 0.02 | 0.39 | 0.1 | 0.76 | 17.4 | 285.48 | 6.1 |
| 67.5 °C-168 h | 0.06 | 0.04 | 0.63 | 0.2 | 4.2 | 192.8 | 1014.32 | 33.1 |
| 90 °C-84 h | 0.10 | 0.04 | 0.49 | 0.4 | 1.5 | 245.0 | 665.00 | 172 |
| 135 °C-42 h | 0.10 | 0.06 | 0.32 | 0.5 | 8.6 | 19.3 | 493.84 | 441 |
| 180 °C-21 h | 0.02 | 0.04 | 0.69 | 0.3 | 7.2 | 9.6 | 419.24 | 416 |
| 225 °C-10.5 h | 0.02 | 0.04 | 0.57 | 0.3 | 3.8 | 3.0 | 311.47 | 233 |
M moisture, I insoluble impurities, U unsaponifiable matter, FFA free fatty acids, OFA oxidized fatty acids, PV peroxide value, TBARS thiobarbituric acid reactive substances (malondialdehyde equivalance), AnV p-anisidine value (no unit)