Table 3.
Effect of aging time in the ketones and alcohols 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 | |||||
| 2,3-Butanedione | 43 | 592 | 160.3 | 137.3 | 585.5 | 267.7 | 85.1 | 0.139 |
| 2-Butanone | 72 | 596 | 189.0 | 212.8 | 86.1 | 181.1 | 31.1 | 0.252 |
| 2-Pentanone | 86 | 720 | 19.2 | 14.4 | 16.6 | 16.6 | 0.79 | 0.183 |
| 3-Pentanone | 57 | 736 | 74.9 | 37.5 | 188.8 | 102.3 | 35.7 | 0.507 |
| 2,3-Pentanedione | 100 | 739 | 81.7 | 83.4 | 143.7 | 111.9 | 14.7 | 0.272 |
| Acetoin | 45 | 787 | 146.1 | 123.5 | 569.1 | 278.8 | 1067.5 | 0.152 |
| 3-Heptanone | 57 | 960 | 16.2 a | 23.1 b | 27.6 b | 20.3 c | 1.92 | 0.022 |
| 2-Heptanone | 58 | 967 | 144.5 a | 103.7 a | 905.2 b | 347.6 c | 91.4 | <0.001 |
| 4-Cyclopentene-1,3-dione | 96 | 1003 | 33.3 | 42.0 | 31.9 | 34.2 | 2.63 | 0.486 |
| 4-Hexen-3-one, 5-methyl- | 83 | 1047 | 23.6 a | 18.1 a | 35.1 b | 24.0 a | 2.58 | 0.022 |
| Butyrolactone | 42 | 1049 | 131.1 | 174.9 | 93.6 | 144.3 | 16.3 | 0.121 |
| 2(5H)-Furanone | 55 | 1053 | 102.2 | 47.4 | 308.6 | 167.2 | 48.3 | 0.238 |
| 3-Octen-2-one | 55 | 1111 | 27.4 a | 27.4 a | 22.0 b | 26.6 a | 1.14 | 0.045 |
| 3-Octanone, 2-methyl- | 43 | 1141 | 27.6 | 31.8 | 29.9 | 29.6 | 1.46 | 0.828 |
| 2-Nonanone, 3-(hydroxymethyl)- | 43 | 1146 | 14.2 | 12.5 | 14.6 | 14.0 | 0.53 | 0.568 |
| Total ketones | 1191 | 1090 | 3058 | 1766 | 1229 | 0.066 | ||
| Cyclobutanol | 44 | 504 | 147.5 | 130.0 | 431.1 | 257.7 | 52.0 | 0.107 |
| 1-Pentanol | 55 | 847 | 603.6 a | 631.8 a | 3253 b | 1332 c | 343.6 | <0.001 |
| 1-Hexanol | 56 | 959 | 865.0 | 2135 | 10872 | 3974 | 2081.9 | 0.242 |
| 1-Heptanol | 70 | 1046 | 88.7 | 72.4 | 262.1 | 124.7 | 36.1 | 0.117 |
| 1-Octen-3-ol | 57 | 1051 | 211.5 a | 153.6 a | 757.5 b | 347.3 c | 73.5 | <0.001 |
| n-Tridecan-1-ol | 55 | 1073 | 110.9 | 155.6 | 207.1 | 153.4 | 18.3 | 0.270 |
| 1-Heptanol, 2,4-diethyl- | 69 | 1085 | 140.6 | 199.3 | 66.1 | 143.6 | 21.0 | 0.081 |
| 1-Decanol | 70 | 1027 | 18.1 | 21.1 | 13.6 | 18.3 | 1.64 | 0.281 |
| 1-Tetradecanol | 68 | 1225 | 23.8 | 29.0 | 15.4 | 23.2 | 2.16 | 0.118 |
| 1-Decanol, 2-hexyl- | 97 | 1241 | 17.8 | 19.7 | 16.3 | 18.6 | 1.23 | 0.576 |
| 1-Butanol, 2-methyl- | 57 | 1243 | 15.2 | 13.7 | 13.2 | 14.7 | 0.61 | 0.188 |
| 1-Octanol, 2-methyl- | 57 | 177 | 17.0 | 18.3 | 13.8 | 17.5 | 1.49 | 0.306 |
| Total alcohols | 2260 a | 3580 a | 15922 b | 6426 a | 2535 | 0.048 | ||
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.