Table 7.
Effect of Pinus taeda hydrolyzed lignin diet addition on aldehydes and ketones of beef meat dry aged for 35 days (n = 20 samples for each experimental group). Results are expressed as ng/g of meat.
| Volatile Compound | PTHL | CON | SEM | p-Value |
|---|---|---|---|---|
| Aldehydes | ||||
| butanal, 2-methyl- (butyraldehyde, 2-methyl-) | 29.35 | 52.77 | 5.82 | 0.0117 |
| butanal, 3-methyl- (isovaleraldehyde) | 20.80 | 45.52 | 3.93 | 0.0004 |
| pentanal | 95.95 | 236.64 | 21.67 | 0.0003 |
| hexanal (n-caproaldehyde) | 1709.88 | 3924.47 | 309.94 | 0.0001 |
| heptanal | 42.48 | 120.66 | 12.16 | 0.0003 |
| heptanal, 2-methyl- | 30.11 | 78.05 | 4.45 | <0.0001 |
| benzaldehyde | 41.32 | 43.27 | 4.29 | 0.7516 |
| Benzaldehyde, 3-ethyl- | 8.08 | 12.16 | 1.04 | 0.0138 |
| nonanal | 48.48 | 70.56 | 3.77 | 0.0008 |
| octanal | 59.04 | 53.73 | 4.94 | 0.4586 |
| Acetaldehyde | 10.02 | 8.37 | 1.70 | 0.5051 |
| Ketones | ||||
| 2-octanone | 113.07 | 90.46 | 7.79 | 0.0568 |
| 5-hepten-2-one, 6-methyl- | 14.64 | 13.60 | 2.57 | 0.7795 |
| 2,3 butanedione (biacetyl) | 193.06 | 277.50 | 47.24 | 0.2244 |
| acetone (2-propanone) | 113.19 | 114.78 | 24.08 | 0.9634 |
| 1-hepten-3-one | 10.38 | 4.54 | 0.78 | <0.0001 |
| 3-nonanone | 2.60 | 3.40 | 0.42 | 0.2030 |
| 2-heptanone | 25.20 | 20.09 | 6.26 | 0.5720 |
| acetol (2-propanone, 1-hydroxy) | 3.57 | 3.26 | 0.46 | 0.6440 |
| 3-acetyl-1H-pyrroline | 5.21 | 4.94 | 0.65 | 0.7668 |
| 2,3 - pentanedione | 4.75 | 16.93 | 0.83 | <0.0001 |
| 2-butanone | 38.94 | 75.12 | 9.09 | 0.0125 |
| acetoin (2-butanone,3-hydroxy-) | 503.18 | 729.13 | 90.91 | 0.0979 |
PTHL, Pinus taeda hydrolyzed lignin group; CON, control group; SEM, standard error of the mean.