Table 5.
Free amino acid and peptide contents in longissimus muscle of Hanwoo steers fed rice bran, flax seed, and sunflower seed during the finishing period
| Control1 | RB2 | FS3 | SS4 | |
|---|---|---|---|---|
| ——— % ——— | ||||
| Ala | 23.82±6.755 | 23.46±4.40 | 26.29±3.54 | 23.12±3.89 |
| Gly | 5.91±1.57 | 5.39±1.21 | 6.04±1.09 | 5.86±0.89 |
| Ser | 2.99±1.06 | 3.03±0.84 | 3.08±1.33 | 2.61±0.39 |
| Thr | 3.14±1.18 | 3.19±0.98 | 2.80±0.59 | 2.45±0.41 |
| Lys | 4.29±1.65 | 4.22±1.92 | 4.27±1.04 | 4.17±0.63 |
| Arg | 4.33±1.56 | 4.74±1.11 | 4.55±1.15 | 3.92±0.67 |
| His | 2.53±0.78 | 2.46±0.44 | 2.66±0.41 | 2.42±0.47 |
| Ile | 2.66±1.02 | 2.67±0.66 | 2.79±0.51 | 2.42±0.45 |
| Leu | 4.57±1.92 | 4.68±1.43 | 5.06±1.10 | 4.01±0.84 |
| Met | 0.56±0.42b | 0.45±0.71b | 1.67±0.41a | 1.17±0.30a |
| Phe | 2.90±1.06 | 2.93±0.89 | 3.23±0.64 | 2.50±0.46 |
| Val | 3.39±1.24 | 3.35±0.70 | 3.62±0.71 | 3.28±0.60 |
| Asp | 0.30±0.15 | 0.30±0.09 | 0.13±0.20 | 0.26±0.23 |
| Glu | 2.39±1.09b | 3.00±1.40b | 4.58±1.96a | 2.38±0.96b |
| Tau | 21.40±4.95 | 26.55±5.27 | 26.96±7.47 | 25.18±8.54 |
| Tyr | 2.91±1.18ab | 2.86±0.90ab | 3.26±0.75a | 2.39±0.47b |
| α-AAA | 0.00±0.00b | 0.10±0.22b | 0.53±0.27a | 0.07±0.12b |
| Anserine | 78.31±21.07 | 71.94±7.35 | 88.18±15.51 | 82.65±20.98 |
| Carnosine | 291.40±77.25 | 292.71±61.81 | 329.74±24.44 | 322.04±52.01 |
RB, rice bran; FS, flax seed; SS, sunflower seed; α-AAA, α-amino aminoadipic acid; SD, standard deviation.
1
Commercial finishing concentrate.
2
95% commercial finishing concentrate+5% rice bran.
3
95% commercial finishing concentrate+5% flax seed.
4
95% commercial finishing concentrate+5% sunflower seed.
5
Mean±SD.
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Mean values in the same row with different superscript letters are significantly (p<0.05) different.