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Chemical characteristics of unbranded cooking oil (average ± standard of deviation).
| Cooking Oil Sample | Peroxide Value (mEq O2/kg) | Free Fatty Acid (%) | Retinyl Palmitate (IU/g) |
|---|---|---|---|
| PO1 | 0.000 ± 0.000 | 0.090 ± 0.000 | 55.85 ± 5.42 |
| PO2 | 3.995 ± 0.002 | 0.238 ± 0.003 | 51.36 ± 1.28 |
| PO3 | 8.987 ± 0.005 | 0.254 ± 0.005 | 67.49 ± 8.35 |
