Table 3.
Compound | Mean concentration (ng/100 g) a | P b | Standard error | LRI c | ID d | |
---|---|---|---|---|---|---|
Goat | Lamb | |||||
LIPID-DERIVED COMPOUNDS | ||||||
Hydrocarbons | ||||||
Pentane f,g | 10 | 2 | * | 1.34 | 500 | A |
3-Methylpentane e,g | 22 | 17 | * | 1.21 | <600 | B |
Benzene f,g | 3 | 2 | NS | 0.17 | 657 | A |
Heptane f,g | 7 | 2 | * | 0.75 | 700 | A |
Toluene f,g | 17 | 14 | NS | 0.94 | 769 | A |
Octane f,g | 105 | 55 | * | 11.57 | 800 | A |
(E)-2-Octene f,h | 1 | 1 | NS | 0.19 | 814 | B |
(Z)-2-octene f,h | 2 | 3 | NS | 0.47 | 806 | B |
Ethylbenzene f,g | 2 | 1 | NS | 0.06 | 865 | A |
1,3-Dimethylbenzene f,g | 6 | 4 | * | 0.27 | 874 | A |
1,4-Dimethylbenzene f,g | 0.04 | 0.04 | NS | 0.00 | 876 | A |
Styrene f,g | 1 | 2 | NS | 0.09 | 897 | A |
1,2-Dimethylbenzene f,g | 2 | 2 | NS | 0.09 | 898 | A |
Nonane f,g | 4 | 2 | NS | 0.37 | 900 | A |
2,2,4,6,6-Pentamethylheptane e,g | 6 | 47 | * | 5.89 | 993 | A |
Decane f,g | 4 | 2 | NS | 0.55 | 1000 | A |
Limonene f,g | 2 | 1 | NS | 0.10 | 1037 | A |
Camphor e,h | 1 | 0.0 | NS | 0.10 | 1165 | B |
Dodecane f,g | 1 | 1 | NS | 0.05 | 1200 | A |
Tridecane f,g | 5 | 5 | NS | 0.74 | 1300 | A |
Tetradecane f,g | 1 | 1 | NS | 0.08 | 1400 | A |
Pentadecane f,g | 1 | 3 | NS | 0.30 | 1500 | A |
Aldehydes | ||||||
Pentanal f,g | 364 | 75 | * | 41.98 | 699 | A |
(E)-2-Methyl-2-butenal f,g | 1 | 1 | NS | 0.03 | 741 | A |
Hexanal f,g | 1943 | 252 | * | 244.29 | 802 | A |
Heptanal f,g | 319 | 127 | * | 33.89 | 903 | A |
(E)-2-Heptenal f,g | 4 | 0.2 | NS | 0.59 | 960 | A |
Benzaldehyde f,g | 30 | 34 | NS | 2.34 | 971 | A |
Octanal f,g | 229 | 94 | * | 24.24 | 1005 | A |
5-Ethyl-1-formylcyclopentene f,g | 2 | 0.1 | NS | 0.32 | 1041 | C (1) |
(E)-2-Octenal f,g | 7 | 0.2 | NS | 0.96 | 1061 | A |
(Z)-6-Nonenal e,h | 0 | 0.2 | NS | 0.04 | 1100 | D (4) |
Nonanal f,g | 378 | 210 | * | 40.11 | 1108 | A |
(E)-2-Nonenal f,g | 7 | 1 | * | 0.85 | 1164 | A |
2-Ethylbenzaldehyde f,g | 0.1 | 0.4 | NS | 0.08 | 1175 | C [29] |
Decanal f,g | 13 | 9 | * | 1.20 | 1208 | A |
5-Butyl-1-formylcyclopentene f,g | 0.06 | 0.01 | * | 0.01 | 1233 | C [18] |
(E)-2-Decenal f,g | 6 | 1 | * | 0.78 | 1266 | A |
Undecanal f,g | 3 | 1 | * | 0.44 | 1312 | A |
(E,E)-2,4-Decadienal f,g | 2 | 0.2 | * | 0.32 | 1327 | A |
(E)-2-Undecenal f,g | 6 | 1 | * | 0.67 | 1371 | A |
Dodecanal f,g | 1 | 0.5 | * | 0.11 | 1414 | A |
4-Pentylbenzaldehyde f,g | 0.2 | 0.1 | NS | 0.03 | 1480 | B |
Ketones | ||||||
2-Propanone f,g | 78 | 80 | * | 8.06 | <600 | B |
2-Butanone f,g | 448 | 406 | * | 10.70 | <600 | B |
2-Pentanone f,g | 19 | 14 | * | 0.79 | 683 | A |
3-Pentanone e,g | 7 | 6 | NS | 0.15 | 693 | A |
3-Hexanone f,g | 3 | 0.3 | * | 0.33 | 784 | A |
2-Hexanone f,g | 2 | 1 | NS | 0.32 | 788 | A |
Cyclopentanone f,g | 1 | 2 | NS | 0.11 | 794 | A |
4-Hydroxy-2-pentanone e,h | 1 | 0.0 | NS | 0.18 | 818 | D [3] |
2-Methylcyclopentanone f,g | 1 | 0.4 | * | 0.07 | 845 | A |
5-Methyl-2-hexanone e,h | 0.4 | 0.5 | NS | 0.02 | 856 | A |
2-Heptanone f,g | 33 | 11 | * | 3.46 | 890 | A |
3-Ethylcyclopentanone f,g | 2 | 1 | NS | 0.12 | 966 | A |
1-Octen-3-one f,g | 1 | 1 | NS | 0.18 | 978 | B |
2,3-Octanedione f,g | 28 | 6 | * | 3.73 | 983 | A |
3-Octanone f,g | 5 | 2 | NS | 0.41 | 986 | B |
2-Octanone f,g | 1 | 1 | NS | 0.06 | 990 | A |
2-Nonanone f,g | 3 | 3 | NS | 0.12 | 1091 | A |
2-Decanone f,g | 3 | 2 | NS | 0.14 | 1193 | A |
2-Undecanone f,g | 0.5 | 0.4 | NS | 0.02 | 1295 | A |
2-Tridecanone f,g | 0.1 | 0.1 | NS | 0.01 | 1497 | A |
Alcohols | ||||||
2-Butanol f,g | 41 | 31 | * | 1.71 | <600 | B |
2-Methyl-1-propanol f,g | 2 | 8 | NS | 0.97 | 616 | A |
1-Butanol f,g | 84 | 5 | * | 12.27 | 654 | A |
1-Penten-3-ol f,g | 28 | 51 | * | 5.30 | 679 | A |
3-Methyl-3-buten-1-ol f,g | 2 | 1 | NS | 0.28 | 729 | A |
3-Methylbutan-1-ol f,g | 20 | 22 | NS | 0.90 | 736 | A |
1-Pentanol f,g | 142 | 51 | * | 13.69 | 765 | A |
1-Hexanol f,g | 37 | 20 | * | 2.58 | 867 | A |
1-Heptanol f,g | 3 | 2 | NS | 0.23 | 969 | A |
1-Octen-3-ol f,g | 124 | 77 | * | 7.10 | 980 | A |
3-Octanol f,g | 1 | 2 | NS | 0.26 | 997 | A |
2-Ethyl-1-hexanol f,g | 80 | 6 | * | 11.02 | 1028 | A |
2-Octen-1-ol (E and /or Z) f,g | 9 | 3 | NS | 0.96 | 1067 | A |
1-Octanol f,g | 49 | 26 | * | 4.87 | 1069 | A |
1-Nonanol f,g | 3 | 1 | NS | 0.37 | 1163 | A |
1-Dodecanol f,g | 2 | 4 | NS | 0.44 | 1462 | B |
Acids | ||||||
Hexanoic acid f,g | 4 | 1 | * | 0.37 | 964 | A |
Octanoic acid f,g | 0.3 | 0.2 | NS | 0.02 | 1157 | A |
Nonanoic acid f,g | 0.3 | 0.2 | NS | 0.02 | 1254 | A |
Furans | ||||||
2-Ethylfuran f,g | 2 | 1 | NS | 0.20 | 698 | A |
2-Butylfuran f,g | 0.4 | 0.1 | NS | 0.05 | 893 | A |
2-Pentylfuran f,g | 14 | 3 | * | 1.70 | 992 | A |
2-Hexylfuran f,g | 0.1 | 0.1 | NS | 0.01 | 1092 | A |
2-Octylfuran f,g | 0.5 | 0.1 | NS | 0.06 | 1297 | A |
MAILLARD-DERIVED COMPOUNDS | ||||||
Nonheterocyclic | ||||||
2-Methylpropanal f,g | 92 | 69 | * | 4.71 | <600 | B |
3-Methylbutanal f,g | 141 | 107 | * | 4.93 | 649 | A |
2-Methylbutanal f,g | 129 | 92 | * | 5.77 | 660 | A |
Benzeneacetaldehyde f,g | 2 | 1 | NS | 0.16 | 1052 | A |
2.3-Butanedione f,g | 34 | 20 | * | 2.08 | <600 | B |
2,3-Pentanedione f,g | 1 | 1 | NS | 0.09 | 695 | A |
2,4-Pentanedione e,h | 0.2 | 0.2 | NS | 0.03 | 778 | A |
3-Hydroxy-2-butanone f,g | 21 | 3 | * | 2.96 | 708 | A |
3-Metylbutanoic acid f,g | 5 | 5 | NS | 0.55 | 827 | B |
Sugar-derived | ||||||
2-Furfural f,g | 0.4 | 0.4 | NS | 0.02 | 834 | A |
2-Furanmethanol f,g | 0.2 | 0.2 | NS | 0.02 | 853 | A |
2-Acetylfuran f,g | 1 | 0.8 | NS | 0.06 | 913 | A |
Nitrogen heterocyclic | ||||||
N-Methylpyrrole f,g | 3 | 2 | NS | 0.23 | 738 | A |
Pyrrole f,g | 12 | 10 | NS | 0.97 | 747 | A |
Pyridine f,g | 1 | 1 | NS | 0.16 | 748 | A |
1-Ethyl-1H-pyrrole e,h | 1 | 1 | NS | 0.08 | 814 | C [18] |
3-Methyl-1-H-pyrrole e,h | 0.3 | 0.3 | NS | 0.03 | 836 | C [18] |
2-Methyl-1-H-pyrrole f,g | 0.4 | 0.3 | NS | 0.03 | 844 | C [18] |
Indole f,g | 2 | 0.4 | * | 0.58 | 1309 | D [2] |
Pyrazines | ||||||
2-Methylpyrazine f,g | 4 | 2 | * | 0.34 | 828 | A |
2,5(6)-Dimethylpyrazine f,g | 14 | 8 | * | 0.97 | 916 | A |
Ethylpyrazine f,g | 1 | 0.4 | NS | 0.06 | 922 | A |
2-Ethyl-6-methylpyrazine f,g | 5 | 3 | * | 0.36 | 1001 | A |
Trimethylpyrazine f,g | 12 | 6 | * | 1.00 | 1005 | A |
2-Ethyl-5-methylpyrazine f,g | 8 | 5 | NS | 0.52 | 1007 | A |
3,6-Dimethyl-2-ethylpyrazine f,g | 12 | 8 | * | 0.67 | 1080 | A |
3,5-Dimethyl-2-ethylpyrazine f,g | 2 | 1 | NS | 0.19 | 1086 | A |
2,3-Dimethyl-5-ethylpyrazine f,g | 1 | 1 | NS | 0.14 | 1090 | A |
2,5-Diethyl-5-methylpyrazine f,g | 0.06 | 0.04 | NS | 0.00 | 1156 | B |
2,3,5-Trimethyl-6-ethylpyrazine e,h | 1 | 0.5 | NS | 0.09 | 1160 | C [2] |
Dimethyl sulfide | ||||||
Hydrogen sulphide f,g | 19 | 19 | NS | 0.61 | <600 | B |
Sulfur dioxide f,g | 1 | 1 | NS | 0.08 | <600 | B |
Methanethiol f,g | 4 | 4 | NS | 0.11 | <600 | B |
Carbon disulfide f,g | 3 | 3 | NS | 0.09 | <600 | B |
Ethylmethylsulfide e,h | 0.3 | 0.4 | NS | 0.02 | 604 | B |
Dimethyl disulfide f,g | 4 | 3 | NS | 0.25 | 745 | A |
Ethylmethyldisulfide e,g | 0.02 | 0.02 | NS | 0.00 | 840 | B |
Methional f,g | 0.06 | 0.06 | NS | 0.00 | 910 | A |
Dimetyl trisulfide f,g | 1 | 1 | NS | 0.06 | 981 | A |
Dimethyl tetrasulfide f,g | 0.07 | 0.07 | NS | 0.02 | 1241 | C [29] |
Thiophenes | ||||||
Thiophene f,g | 3 | 3 | NS | 0.16 | 666 | A |
2-Methylthiophene f,g | 1 | 1 | NS | 0.08 | 773 | A |
3-Methylthiophene f,g | 0.4 | 0.4 | NS | 0.02 | 783 | A |
2-Ethylthiophene f,g | 0.1 | 0.1 | NS | 0.00 | 866 | A |
Thiazoles | ||||||
5-Mehtylthiazole f,g | 0.09 | 0.04 | * | 0.01 | 820 | A |
Miscellaneous | ||||||
Acetophenone f,g | 1 | 2 | NS | 0.09 | 1075 | A |
a The means are from four replicate samples; b Probability that there is a difference between means; NS, no significant difference between means (p > 0.05); * significant at the 5% level; c Linear retention index on a CP-Sil 8 CB low bleed/MS column; d A, mass spectrum and LRI agree with those of authentic compounds; B, mass spectrum identified using NIST/EPA/NIH Mass Spectral Database and LRI agrees with literature value [31], C, Mass spectrum agrees with spectrum in NIST/EPA/NIH Mass Spectral Database or with other literature spectrum [2,3,18,19,29]; D, Tentative identification where mass spectrum agrees with reference spectrum in the NIST/EPA/NIH mass spectral database [2,3]; e Reported for the first time in cooked goat; f Previously reported in grilled goat [2,3,19]; g Previously reported in cooked lamb; h Reported for the first time in cooked lamb.