Table 2.
Effect of aging time in the hydrocarbons and aromatic hydrocarbons content, expressed as quantifier area units (AU × 103/g) of foal meat steaks aged for 14 days under vacuum conditions.
| Volatile Compound | m/z | LRI | Aging Time (Days) | SEM | p-Value | |||
|---|---|---|---|---|---|---|---|---|
| 1 | 6 | 9 | 14 | |||||
| Pentane | 43 | 500 | 20.2 a | 25.8 a | 45.0 b | 31.6 a,b | 3.26 | 0.012 |
| n-Hexane | 69 | 600 | 482.0 | 699.2 | 130.3 | 458.1 | 101.1 | 0.205 |
| Hexane, 2,2-dimethyl- | 57 | 660 | 184.9 | 267.9 | 97.2 | 171.4 | 25.3 | 0.107 |
| Isopropylcyclobutane | 56 | 670 | 20.4 a | 27.7 a,b | 39.4 b | 28.9 a,b | 2.34 | 0.010 |
| Heptane | 71 | 700 | 41.9 | 49.7 | 67.0 | 52.4 | 5.65 | 0.437 |
| Pentane, 2,3,4-trimethyl- | 71 | 756 | 61.1 | 69.1 | 28.9 | 53.1 | 7.26 | 0.209 |
| Heptane, 3,3,4-trimethyl- | 71 | 763 | 80.6 | 84.0 | 26.5 | 64.0 | 9.36 | 0.077 |
| Hexane, 2,2,4-trimethyl- | 57 | 804 | 122.8 | 103.2 | 42.4 | 95.5 | 14.4 | 0.135 |
| 2-Heptene, 3-methyl- | 70 | 817 | 116.0 | 98.7 | 87.4 | 99.1 | 8.69 | 0.682 |
| Octane | 85 | 800 | 184.4 | 158.0 | 335.4 | 214.2 | 31.9 | 0.118 |
| 2-Octene, (E)- | 112 | 833 | 10.2 | 10.2 | 10.1 | 10.1 | 0.01 | 0.493 |
| Cyclohexane, 1,2-dimethyl- (cis/trans) | 55 | 837 | 33.6 a | 27.6 a | 51.9 b | 35.1 a | 4.10 | 0.046 |
| Heptane, 2,3-dimethyl- | 43 | 847 | 43.5 | 30.0 | 22.6 | 36.5 | 4.34 | 0.061 |
| 4-Octene, (E)- | 55 | 849 | 10.3 | 10.4 | 10.4 | 10.4 | 0.01 | 0.493 |
| Bicyclo [2.2.2]octane | 67 | 869 | 27.6 | 27.0 | 34.3 | 28.8 | 1.89 | 0.352 |
| Octane, 2-methyl- | 57 | 903 | 15.4 | 12.8 | 13.3 | 15.2 | 1.07 | 0.112 |
| Heptane, 3-ethyl- | 57 | 910 | 284.3 | 212.0 | 150.7 | 239.1 | 31.1 | 0.215 |
| Nonane, 3,7-dimethyl- | 57 | 920 | 142.4 | 83.4 | 86.1 | 128.6 | 20.8 | 0.117 |
| Heptane, 2,2,4-trimethyl- | 57 | 926 | 279.6 | 202.9 | 139.3 | 233.3 | 31.3 | 0.157 |
| Heptane, 2-methyl-3-methylene- | 57 | 935 | 33.4 | 27.0 | 23.9 | 32.0 | 3.94 | 0.261 |
| Octane, 3,5-dimethyl- | 57 | 940 | 229.1 | 189.0 | 127.1 | 201.2 | 25.4 | 0.224 |
| 3-Methyl-3-hexene | 83 | 1042 | 52.0 | 51.0 | 38.9 | 50.0 | 5.50 | 0.628 |
| 2-Octene, 4-ethyl-, (E)- | 69 | 982 | 136.6 | 136.1 | 102.8 | 138.5 | 18.7 | 0.497 |
| Heptane, 3-ethyl-5-methylene- | 70 | 989 | 292.9 | 290.3 | 187.9 | 267.6 | 30.6 | 0.478 |
| 3-Ethyl-3-methylheptane | 57 | 992 | 81.3 | 86.8 | 55.6 | 79.1 | 9.21 | 0.433 |
| Pentane, 3,3-dimethyl- | 43 | 999 | 35.1 | 23.6 | 33.7 | 28.9 | 3.34 | 0.340 |
| Undecane, 6,6-dimethyl- | 57 | 1010 | 91.3 | 114.4 | 65.2 | 96.0 | 12.3 | 0.382 |
| Nonane, 5-methylene- | 56 | 1015 | 98.5 | 115.0 | 72.2 | 98.9 | 11.6 | 0.535 |
| 2-Nonene, 3-methyl-, (E)- | 70 | 1026 | 239.7 | 295.4 | 202.3 | 251.7 | 28.8 | 0.685 |
| Heptane, 2,2,4,6,6-pentamethyl- | 57 | 1027 | 1887.8 | 2729.3 | 1650 | 2138 | 233.9 | 0.357 |
| Decane | 57 | 1000 | 386.9 | 619.6 | 309.5 | 437.6 | 58.0 | 0.291 |
| (Z)-4-Methyl-2-hexene | 98 | 1060 | 105.2 | 147.8 | 88.4 | 116.8 | 13.7 | 0.430 |
| 2,2,4,4-Tetramethyloctane | 57 | 1066 | 193.9 | 327.0 | 153.0 | 229.0 | 29.3 | 0.156 |
| Undecane, 5,5-dimethyl- | 57 | 1084 | 154.6 | 228.9 | 126.0 | 175.0 | 20.0 | 0.256 |
| Dodecane, 2,6,10-trimethyl- | 57 | 1092 | 121.3 | 161.3 | 84.5 | 124.8 | 15.2 | 0.337 |
| Dodecane, 4-methyl- | 43 | 1105 | 82.2 | 118.0 | 69.8 | 92.6 | 10.3 | 0.346 |
| 2-Decene, 3-methyl-, (Z)- | 1110 | 51.8 | 75.9 | 46.2 | 57.9 | 7.20 | 0.531 | |
| Undecane | 57 | 1100 | 1048 | 1677 | 854.5 | 1196.3 | 141.9 | 0.201 |
| 2-Undecene, 9-methyl-, (Z)- | 1137 | 220.8 | 338.8 | 189.9 | 251.8 | 29.4 | 0.315 | |
| 2-Acetyl-2-methyltetrahydrofuran | 1147 | 31.2 | 39.3 | 21.2 | 30.4 | 3.09 | 0.230 | |
| 4,4-Dipropylheptane | 57 | 1161 | 13.8 | 14.3 | 13.0 | 14.3 | 0.75 | 0.521 |
| Pentane, 3,3-diethyl- | 57 | 1166 | 40.2 | 63.3 | 95.3 | 62.9 | 12.4 | 0.415 |
| Dodecane, 2-methyl-6-propyl- | 1173 | 133.8 | 207.1 | 110.7 | 150.9 | 17.6 | 0.260 | |
| 2-Undecene, 3-methyl-, (E)- | 70 | 1181 | 35.4 | 59.1 | 34.1 | 42.2 | 5.21 | 0.344 |
| Dodecane | 57 | 1200 | 496.3 | 809.7 | 430.5 | 578.6 | 67.5 | 0.216 |
| Pentadecane, 6-methyl- | 57 | 1223 | 33.3 | 53.3 | 31.3 | 38.9 | 4.57 | 0.352 |
| Decane, 2,3,6-trimethyl- | 1238 | 16.8 | 16.7 | 18.1 | 17.1 | 0.68 | 0.864 | |
| Tridecane | 71 | 1300 | 98.4 | 157.8 | 100.5 | 117.4 | 13.1 | 0.392 |
| Tridecane, 3-methyl- | 85 | 1304 | 14.8 | 18.2 | 15.4 | 15.8 | 0.94 | 0.619 |
| Tetradecane | 57 | 1328 | 13.9 | 13.9 | 13.4 | 13.8 | 0.09 | 0.129 |
| Total hydrocarbons | 8509 | 11292 | 6678 | 9037 | 900.3 | 0.287 | ||
| Benzene | 78 | 650 | 35.3 a | 38.2 a | 132.8 b | 66.6 c | 11.2 | <0.001 |
| Toluene | 92 | 804 | 113.4 | 117.6 | 91.7 | 98.7 | 9.52 | 0.320 |
| Ethylbenzene | 91 | 917 | 139.7 | 430.0 | 162.3 | 224.5 | 58.8 | 0.324 |
| Benzene, 1,3-dimethyl- | 106 | 926 | 286.9 | 522.2 | 299.9 | 353.2 | 38.8 | 0.123 |
| p-Xylene | 106 | 958 | 68.2 | 132.5 | 72.6 | 88.7 | 10.7 | 0.139 |
| 3-Carene | 136 | 983 | 99.0 a | 184.1 b | 76.1a | 118.9 a,b | 14.3 | 0.032 |
| Total aromatic hydrocarbons | 742.6 a | 1424.8 b | 835.7 a,c | 950.8 c | 143.5 | <0.001 | ||
a–c Mean values in the same row (corresponding to the same parameter) not followed by a common letter differ significantly (p < 0.05; Tukey’s Test); SEM: standard error of mean; m/z: Quantification ion; LRI: Lineal Retention Index calculated for DB-624 capillary column (J&W scientific: 30 m×0.25 mm id, 1.4 μm film thickness) installed on a gas chromatograph equipped with a mass selective detector.