Table 3.
Amino acid composition and content changes in dry-heat-treated rice bran at 120 and 130 °C.
| 120 °C | 130 °C | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Amino Acid (mg/g) | 233 min | 143 min | 88 min | 86 min | 66 min | 50 min | ||||||
| 0 Day | 60 Days | 0 Day | 60 Days | 0 Day | 60 Days | 0 Day | 60 Days | 0 Day | 60 Days | 0 Day | 60 Days | |
| Aspartic acid | 4.58 bB | 5.09 aA | 4.68 bB | 5.10 aA | 5.57 aA | 5.04 abA | 5.23 aB | 4.59 cC | 5.30 aB | 5.25 aB | 5.69 aA | 5.71 aA |
| Threonine | 1.92 aB | 1.93 aA | 1.95 aB | 1.91 aA | 2.24 aA | 1.91 bA | 2.20 aB | 1.71 bC | 2.33 aAB | 1.96 cB | 2.41 aA | 2.16 bA |
| Serine | 2.76 aB | 2.44 cAB | 2.67 aB | 2.41 aB | 3.01 aA | 2.57 aA | 2.92 bA | 2.30 cC | 3.04 aA | 2.60 cB | 3.05 aA | 3.02 aA |
| Glutamic acid | 8.15 cB | 9.38 aA | 8.61 aB | 9.08 aA | 10.27 aA | 9.21 bA | 9.61 aA | 8.22 dC | 9.12 abB | 9.52 aB | 9.60 aA | 9.82 aA |
| Glycine | 3.21 bA | 3.45 aA | 3.26 aA | 3.37 aA | 3.60 aA | 3.47 aA | 3.50 aA | 3.11 bC | 3.47 aA | 3.50 aB | 3.64 aA | 3.74 aA |
| Alanine | 3.62 cB | 4.20 aA | 3.57 aB | 4.19 aA | 3.93 aA | 3.90 aA | 3.91 aB | 3.72 bC | 4.07 aB | 4.23 aB | 4.33 aA | 4.61 aA |
| Cystine | 0.28 aA | 0.33 aA | 0.40 aA | 0.28 aA | 0.40 aA | 0.34 aA | 0.48 aA | 0.26 bA | 0.55 aA | 0.26 bA | 0.48 aA | 0.26 bA |
| Valine | 3.23 bC | 3.60 aA | 3.39 aB | 3.49 aA | 3.73 aA | 3.44 aA | 3.55 aB | 3.07 cB | 3.60 aB | 3.68 aA | 3.92 aA | 3.60 abA |
| Methionine | 0.24 aC | 0.38 aA | 0.49 aB | 0.43 aA | 1.03 aA | 0.40 bA | 0.63 abB | 0.44 bC | 0.81 aAB | 0.48 cB | 0.93 aA | 0.53 dA |
| Isoleucine | 2.27 bA | 2.53 aA | 2.192 cA | 2.54 abA | 2.43 aA | 2.46 aA | 2.45 aA | 2.27 cA | 2.46 aA | 2.48 aA | 2.64 aA | 2.66 aA |
| Leucine | 4.25 bB | 4.47 aAB | 4.07 aC | 4.6 bA | 4.56 aA | 4.40 aB | 4.60 aB | 4.14 bC | 4.64 aB | 4.68 aB | 5.01 aA | 5.09 aA |
| Tyrosine | 2.10 bB | 2.29 aA | 2.17 aB | 2.32 aA | 2.40 aA | 2.19 bA | 2.33 aA | 2.01 bB | 2.25 aA | 2.28 aAB | 2.45 aA | 2.53 aA |
| Phenylalanine | 2.8 bB | 3.06 aA | 3.02 aAB | 3.10 aA | 3.20 aA | 2.88 bA | 3.05 aB | 2.71 bC | 3.09 aB | 3.16 aB | 3.33 aA | 3.32 aA |
| Histidine | 1.786 bC | 2.46 aA | 2.31 bB | 2.60 aA | 2.59 aA | 2.28 abA | 1.74 bB | 2.31 aA | 1.93 bAB | 2.69 aA | 2.08 bA | 2.65 aA |
| Lysine | 3.27 bB | 3.55 aA | 3.28 bB | 3.60 aA | 3.63 aA | 3.44 bA | 3.42 abB | 3.29 bC | 3.62 aB | 3.70 aB | 4.10 aA | 4.11 aA |
| Arginine | 5.88 cB | 6.42 abA | 5.71 bC | 6.43 aA | 6.57 aA | 6.04 abA | 6.41 aA | 5.46 cB | 5.90 cC | 6.61 aA | 6.18 bB | 6.77 aA |
| Proline | 2.47 aB | 2.10 aA | 2.27 aB | 2.30 aA | 3.03 aA | 2.41 bA | 2.77 aB | 2.05 bC | 2.82 cB | 2.37 aB | 2.98 aA | 2.55 bA |
| TAA | 52.38 dC | 57.52 bA | 53.46 cB | 56.99 bA | 62.83 aA | 57.82 bA | 58.45 bB | 51.69 dC | 59.31 aB | 59.26 aB | 63.96 aA | 63.53 aA |
| EAA | 18.05 bB | 19.51 aA | 18.38 aB | 19.69 aA | 20.82 aA | 18.91 abA | 19.90 aB | 17.63 acB | 20.55 aB | 20.14 aA | 22.34 aA | 21.46 aA |
| NEAA | 34.33 dC | 38.02 bAB | 35.07 dB | 37.30 cB | 42.01 aA | 38.90 bA | 38.54 bB | 34.05 dC | 38.75 aB | 39.12 aB | 41.62 aA | 42.07 aA |
| E/T (%) | 34.46 bA | 33.91 aA | 34.39 aA | 34.55 aA | 33.14 aA | 32.72 aA | 34.06 aA | 34.12 aA | 34.66 abA | 33.98 bA | 34.94 aA | 33.78 aA |
| E/N (%) | 52.59 aA | 51.31 abA | 52.41 aA | 52.80 aA | 49.56 aA | 48.63 aA | 51.65 aA | 51.79 aA | 53.04 aA | 51.47 aA | 53.71 aA | 51.02 aA |
Note: The lowercase letters in the same row refer to the significant difference when p < 0.05 for different storage periods at the same temperature and the same treatment conditions; the uppercase letters in the same row refer to the p values of varying treatment times at the same temperature and the same storage period.