Table 9.
Determination of volatile profiles of C-GV, P-GV, and UT-GV.
| Compound | RI | C-GV (µg/L) | P-GV (µg/L) | UT-GV(µg/L) |
|---|---|---|---|---|
| Ethyl acetate | 884 | 1.66 ± 0.13 a | 0.64 ± 0.12 b | 1.35 ± 0.13 a |
| 2-Butanone | 904 | 0.72 ± 0.19 a | 0.51 ± 0.04 a | 0.62 ± 0.04 a |
| 2-Propanol | 924 | 22.90 ± 1.61 a | 25.35 ± 3.01 a | 22.64 ± 0.96 a |
| Ethanol | 932 | 102.04 ± 4.79 a | 111.51 ± 2.77 a | 107.54 ± 2.52 a |
| Hexanal | 1079 | 1.03 ± 0.20 a | 0.44 ±0.06 b | 0.74 ± 0.09 ab |
| 2-Methyl-1-propanol | 1092 | 24.01 ± 1.50 a | 21.19 ± 1.87 a | 22.20 ± 1.75 a |
| 2-Hexanone | 1097 | 1.71 ± 0.23 a | 0.91 ± 0.08 b | 1.36 ± 0.13 ab |
| 3-Pentanol | 1109 | 34.79 ± 1.88 a | 42.12 ± 1.93 a | 39.34 ± 2.52 a |
| Butanol | 1157 | 45.81 ± 2.93 a | 55.16 ± 3.26 a | 46.47 ± 2.89 a |
| 2-Heptanone | 1182 | 3.49 ± 0.35 a | 2.04 ± 0.12 b | 2.79 ± 0.18 ab |
| 3-Hexanol | 1189 | 46.73 ± 1.54 b | 59.01 ± 1.63 a | 51.17 ± 2.76 ab |
| 3-methyl-1-butanol | 1205 | 114.08 ± 6.12 a | 130.51 ± 4.16 a | 116.82 ± 4.75 a |
| 1-Pentanol | 1266 | 9.42 ± 0.93 a | 7.17 ± 0.96 ab | 5.79 ± 0.47 b |
| ρ-Cymene | 1275 | 0.21 ± 0.05 a | n.d | 0.13 ± 0.04 a |
| Hexyl acetate | 1281 | 2.37 ± 0.16 a | 0.89 ± 0.13 b | 1.87 ± 0.11 a |
| Octanal | 1292 | 0.54 ± 0.10 a | n.d | 0.41 ± 0.13 a |
| 2-Octanone | 1299 | 0.82 ± 0.11 a | 0.41 ± 0.07 b | 0.56 ± 0.09 ab |
| 6-Methyl-5-hepten-2-one | 1342 | 1.61 ± 0.17 a | 0.72 ± 0.19 b | 1.09 ± 0.18 ab |
| 1-Hexanol | 1353 | 66.45 ± 3.82 a | 61.44 ± 2.38 a | 70.95 ± 3.97 a |
| Nonanal | 1392 | 3.54 ± 0.30 a | 1.62 ± 0.19 b | 2.79 ± 0.18 a |
| 2-Nonanone | 1397 | 1.46 ± 0.18 a | 1.04 ± 0.12 a | 1.48 ± 0.13 a |
| Acetic acid | 1458 | 321.51 ± 9.84 a | 237.03 ± 10.58 b | 288.09 ± 12.28 a |
| Butanoic acid | 1630 | 101.75 ± 4.1 a | 63.62 ± 5.44 b | 84.25 ± 6.10 ab |
| 1-Nonanol | 1661 | 3.93 ± 0.27 a | 3.91 ± 0.51 a | 3.42 ± 0.66 a |
| Isovaleric acid | 1682 | 421.05 ± 10.46 a | 276.71 ± 26.64 b | 348.67 ± 19.49 ab |
| Pentanoic acid | 1735 | 7.51 ±1.30 a | 3.10 ± 0.77 a | 4.73 ± 1.05 a |
| Hexanoic acid | 1849 | 21.11 ± 3.74 a | 13.70 ± 1.22 a | 16.73 ± 1.82 a |
| Phenylethyl alcohol | 1918 | 69.37 ± 6.48 a | 78.86 ± 5.53 a | 71.95 ± 1.94 a |
| Octanoic acid | 2061 | 30.92 ± 3.34 a | 18.57 ± 1.54 b | 24.97 ± 3.4 ab |
| Nonanoic acid | 2159 | 66.95 ± 4.79 a | 43.49 ± 3.73 b | 61.42 ± 5.37 ab |
| Decanoic acid | 2251 | 37.49 ± 2.86 a | 19.18 ± 2.36 b | 30.79 ± 1.88 a |
| Total (µg/L) | ||||
| Esters | 4.0 | 1.5 | 3.2 | |
| Alcohols | 466.2 | 513.4 | 482.9 | |
| Aldehydes | 5.1 | 2.1 | 3.9 | |
| Ketones | 9.8 | 5.6 | 7.9 | |
| Acids | 354.6 | 257.7 | 313.4 | |
| Terpenes | 0.2 | 0.0 | 0.1 |
RI: retention index; n.d: not determined; UT-GV: ultrasound treated gilaburu vinegar C-GV: traditional gilaburu vinegar; P-GV: thermal pasteurized gilaburu vinegar. Results are presented mean ± standard deviation (n = 3). Values with the different letters on the same line are significantly different (p < 0.05).