Table 4.
Aroma compounds and relative contents of Chinese chestnuts dried using different drying methods
| Peak | Compound name | Relative content /% | ||||
|---|---|---|---|---|---|---|
| ND | HAD | FVD | MVD | MD | ||
| Aldehydes | ||||||
| 2 | Benzaldehyde | 15.889 | 17.476 | 18.750 | – | 17.576 |
| 5 | Benzeneacetaldehyde | – | – | – | 6.089 | – |
| 7 | 2-Octenal, (E)- | – | 2.644 | 1.072 | – | 1.416 |
| 9 | Nonanal | 7.426 | 7.086 | 4.979 | 8.453 | 4.749 |
| 15 | Decanal | – | 0.890 | 0.606 | 2.234 | 0.848 |
| Alcohols | ||||||
| 4 | Benzyl Alcohol | 36.622 | 36.117 | 44.069 | – | 27.029 |
| 12 | 3-Cyclohexene-1-methanol, ππ-trimethyl- | – | 1.056 | – | – | – |
| 13 | 5-Caranol, (1S, 3R, 5S, 6R)-(-)- | – | – | 0.560 | – | 0.809 |
| 27 | (-)-Isolongifolol, acetate | – | – | 0.430 | – | – |
| Esters | ||||||
| 16 | Hexanedioic acid, dimethyl ester | – | – | 1.599 | – | 0.493 |
| 31 | Acetic acid, chloro-, hexadecyl ester | – | – | – | 2.732 | – |
| 37 | Tributyl phosphate | 14.065 | – | 7.711 | – | 5.406 |
| 45 | Dibutyl phthalate | – | – | 0.435 | – | 0.496 |
| Terpenes | ||||||
| 20 | Bicyclo[4.4.1]undeca-1,3,5,7,9-pentaene | – | 1.070 | 0.375 | – | 2.147 |
| 26 | 1H-Benzocycloheptene, 2,4a,5,6,7,8,9,9a-octahydro-3,5,5-trimethyl-9-methylene-, | – | – | – | – | 0.575 |
| 29 | Cedrene | – | – | – | 1.298 | – |
| 30 | Caryophyllene | 3.822 | 3.980 | 1.955 | 4.053 | 2.895 |
| 33 | (-)-γ-Cadinene | – | 1.259 | 0.824 | – | 2.791 |
| 35 | α-Selinene | – | 1.867 | 1.355 | – | – |
| 38 | d-Cadinene | – | 3.527 | – | – | 2.810 |
| 39 | πGuaiene | – | – | 1.821 | – | – |
| Hydrocarbons | ||||||
| 10 | Azulene | – | – | – | – | 1.380 |
| 11 | Naphthalene | – | 1.266 | 0.741 | 2.696 | – |
| 14 | Dodecane | – | 2.641 | 1.720 | 8.439 | 3.623 |
| 17 | Hexadecane | – | – | – | – | 0.845 |
| 18 | Heptadecane,2,6,10,14-tetramethyl- | – | – | – | 2.322 | – |
| 19 | Dodecane, 2,6,11-trimethyl- | 1.392 | 1.057 | 0.501 | – | – |
| 21 | Naphthalene, 1-methyl- | – | – | 0.676 | 4.505 | 2.147 |
| 22 | Tridecane, 3-methyl- | 1.716 | 1.415 | – | – | – |
| 23 | Tetradecane, 4-methyl- | – | – | 0.643 | 3.694 | 1.054 |
| 25 | Tetradecane | 7.418 | 6.383 | 2.798 | 12.665 | 4.990 |
| 32 | Tetradecane, 2,6,10-trimethyl- | 0.948 | 0.626 | 0.821 | 2.203 | 1.787 |
| 34 | 1,1,4a-Trimethyl-5,6-dimethylenedecahydronaphthalene | – | – | – | 2.024 | – |
| 40 | Pentadecane, 3-methyl-3 | 2.079 | 1.523 | 0.646 | 2.179 | 1.067 |
| 41 | Hexadecane | – | 1.285 | – | 1.565 | – |
| 42 | Tetradecane, 2,6,10-trimethyl- | 1.498 | 0.893 | 0.384 | – | 1.681 |
| 44 | 1,1’-Biphenyl, 3,4diethyl- | – | 1.087 | – | – | 1.564 |
| Others | ||||||
| 1 | Pyrazine, 2,5-dimethyl- | – | – | – | 1.996 | – |
| 3 | Pyrazine, 2-ethyl-6-methyl- | – | – | – | 4.734 | – |
| 6 | Benzene,[(2-propenyloxy)methyl]- | – | 3.693 | – | – | 2.491 |
| 8 | Pyrazine,3-ethyl-2,5-dimethyl- | 5.110 | – | 3.163 | 21.933 | 7.321 |
| 24 | 3-Trifluoroacetoxytetradecane | 0.794 | 1.160 | 0.528 | 2.710 | 0.919 |
| 28 | 1H-Isoindole, 3-methoxy-4,7-dimethyl- | – | – | 0.578 | – | – |
| 36 | Butylated Hydroxytoluene | – | – | – | 1.476 | – |
| 43 | Cedrane, 8-propoxy- | – | – | 0.308 | – | – |