Table 2.
Concentrations of phenols, α-tocopherol, and pigments derived from chlorophyll a (pheophytin a and pyropheophytin a) are shown for the four fresh virgin olive oils (VOOs) before starting the storage (“time zero”) and in every month during the entire storage time.
| Total Phenols (mg/kg) | α-Tocopherol (mg/kg) | Pheophytin a (mg/kg) | Pyropheophytin a (mg/kg) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Months of Storage | VOO1 | VOO2 | VOO3 | VOO4 | VOO1 | VOO2 | VOO3 | VOO4 | VOO1 | VOO2 | VOO3 | VOO4 | VOO1 | VOO2 | VOO3 | VOO4 |
| 0 | 246.71 | 338.90 | 564.82 | 451.25 | 212.62 | 272.28 | 256.91 | 192.94 | 7.06 | 3.02 | 23.43 | 4.61 | 0.03 | 0.04 | 0.07 | 0.11 |
| 1 | 239.51 | 337.08 | 558.45 | 422.98 | 190.47 | 260.76 | 210.03 | 157.49 | 7.68 | 3.00 | 22.98 | 4.60 | 0.14 | 0.04 | 0.39 | 0.26 |
| 2 | 238.82 | 338.66 | 547.93 | 399.56 | 160.05 | 220.01 | 134.21 | 125.84 | 5.17 | 1.30 | 22.59 | 0.53 | 0.33 | 0.05 | 0.63 | 0.12 |
| 3 | 231.70 | 333.44 | 521.74 | 381.09 | 147.63 | 194.34 | 134.78 | 122.78 | 2.60 | 0.43 | 21.32 | 0.33 | 0.37 | 0.05 | 0.95 | 0.16 |
| 4 | 218.11 | 325.57 | 499.02 | 373.03 | 140.11 | 187.77 | 140.81 | 120.65 | 0.49 | 0.12 | 16.73 | 0.20 | 0.22 | 0.04 | 1.18 | 0.09 |
| 5 | 209.46 | 316.30 | 486.27 | 360.98 | 136.22 | 178.83 | 138.86 | 115.21 | 0.47 | 0.11 | 16.83 | 0.19 | 0.20 | 0.04 | 2.74 | 0.07 |
| 6 | 204.68 | 308.34 | 474.05 | 348.81 | 133.77 | 162.18 | 131.86 | 115.52 | 0.18 | 0.10 | 17.17 | 0.12 | 0.08 | 0.03 | 2.13 | 0.06 |
| 7 | 198.97 | 298.84 | 459.09 | 340.11 | 130.48 | 154.93 | 137.04 | 110.22 | 0.03 | 0.03 | 5.36 | 0.03 | 0.03 | 0.02 | 1.23 | 0.02 |
| 8 | 190.74 | 292.30 | 441.80 | 324.71 | 131.55 | 147.99 | 129.99 | 92.26 | 0.03 | 0.05 | 2.22 | 0.03 | 0.05 | 0.02 | 1.22 | 0.02 |
| 9 | 183.06 | 280.30 | 417.35 | 315.62 | 129.12 | 136.40 | 129.09 | 85.48 | 0.02 | 0.04 | 2.39 | 0.05 | 0.03 | 0.02 | 1.72 | 0.02 |
| 10 | 168.05 | 271.11 | 405.58 | 312.19 | 125.98 | 123.43 | 124.91 | 81.60 | 0.03 | 0.02 | 0.44 | 0.03 | 0.02 | 0.02 | 1.58 | 0.01 |
| 11 | 155.06 | 261.88 | 392.51 | 287.31 | 122.78 | 113.15 | 116.48 | 79.05 | 0.02 | 0.04 | 0.62 | 0.02 | 0.04 | 0.02 | 1.51 | 0.02 |
| 12 | 149.66 | 253.01 | 366.32 | 273.11 | 122.30 | 112.77 | 111.11 | 75.12 | 0.02 | 0.03 | 0.27 | 0.02 | 0.02 | 0.02 | 0.54 | 0.02 |
| 13 | 144.38 | 247.86 | 351.22 | 260.54 | 121.81 | 109.56 | 93.18 | 73.43 | 0.02 | 0.04 | 0.13 | 0.02 | 0.02 | 0.01 | 0.32 | 0.02 |
| 14 | 138.29 | 240.03 | 339.06 | 253.55 | 122.06 | 107.97 | 92.08 | 70.76 | 0.01 | nd | 0.09 | nd | 0.02 | 0.02 | 0.22 | nd |
| 15 | 131.43 | 231.23 | 325.29 | 235.88 | 120.36 | 103.17 | 90.44 | 60.51 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
| 16 | 128.41 | 222.52 | 326.64 | 225.60 | 119.64 | 99.73 | 92.84 | 54.64 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
| 17 | 124.19 | 217.34 | 314.18 | 225.25 | 114.55 | 97.04 | 93.07 | 59.10 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
| 18 | 118.84 | 209.22 | 290.96 | 223.78 | 105.07 | 96.47 | 91.47 | 53.67 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
| 19 | 112.45 | 203.57 | 277.17 | 205.86 | 106.30 | 96.94 | 84.28 | 50.20 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
| 20 | 108.06 | 199.34 | 265.78 | 205.83 | 102.30 | 91.28 | 84.92 | 22.42 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
| 21 | 106.87 | 193.95 | 252.69 | 205.76 | 102.39 | 87.47 | 85.69 | 20.38 | nd | nd | nd | nd | nd | 0.03 | nd | nd |
Note: nd; not detected.