Table 2.
The measured contents of amino acids in peel and pulp of Nitraria tangutorum Bobr. (mg/g).
| Amino Acid | Region | ||||||
|---|---|---|---|---|---|---|---|
| Dagele | Zongjia | Nuomuhong | Delingha | Hedong | Dulan | Gahai | |
| His | 1.35 ± 0.04 | 1.76 ± 0.07 | 2.12 ± 0.10 | 1.89 ± 0.08 | 1.65 ± 0.06 | 2.03 ± 0.09 | 1.78 ± 0.08 |
| Orn | 0.42 ± 0.02 | 0.35 ± 0.01 | 0.47 ± 0.02 | 0.33 ± 0.01 | 0.27 ± 0.01 | 0.65 ± 0.03 | 0.29 ± 0.02 |
| Arg | 2.87 ± 0.11 | 3.12 ± 0.13 | 3.34 ± 0.11 | 2.99 ± 0.10 | 3.54 ± 0.12 | 4.13 ± 0.14 | 3.77 ± 0.13 |
| Lys * | 0.24 ± 0.01 | 0.18 ± 0.02 | 0.43 ± 0.02 | 0.11 ± 0.01 | 0.23 ± 0.01 | 0.31 ± 0.01 | 0.27 ± 0.01 |
| Ser | 2.10 ± 0.09 | 2.97 ± 0.12 | 3.54 ± 0.15 | 4.11 ± 0.14 | 3.06 ± 0.11 | 2.96 ± 0.09 | 4.03 ± 0.16 |
| Asp | 1.51 ± 0.04 | 1.76 ± 0.04 | 1.32 ± 0.05 | 1.65 ± 0.04 | 1.87 ± 0.06 | 2.02 ± 0.07 | 1.43 ± 0.05 |
| Glu | 0.98 ± 0.03 | 0.79 ± 0.02 | 1.11 ± 0.04 | 0.87 ± 0.02 | 1.54 ± 0.03 | 1.05 ± 0.03 | 0.95 ± 0.02 |
| Thr * | 17.21 ± 0.64 | 18.41 ± 0.67 | 19.76 ± 0.69 | 16.79 ± 0.58 | 19.23 ± 0.66 | 18.56 ± 0.54 | 18.09 ± 0.63 |
| Gly | 1.09 ± 0.02 | 1.32 ± 0.03 | 0.98 ± 0.03 | 1.43 ± 0.04 | 1.25 ± 0.02 | 0.87 ± 0.02 | 1.29 ± 0.05 |
| Trp * | 1.44 ± 0.04 | 2.12 ± 0.05 | 2.34 ± 0.03 | 4.33 ± 0.12 | 3.05 ± 0.06 | 1.75 ± 0.05 | 1.54 ± 0.04 |
| Ala | 19.81 ± 0.72 | 17.98 ± 0.65 | 19.04 ± 0.70 | 18.90 ± 0.66 | 19.03 ± 0.71 | 17.98 ± 0.69 | 21.22 ± 0.81 |
| Tyr | 8.05 ± 0.31 | 8.97 ± 0.34 | 9.87 ± 0.37 | 10.11 ± 0.41 | 9.07 ± 0.33 | 9.98 ± 0.38 | 8.79 ± 0.32 |
| Pro | 27.47 ± 1.08 | 28.07 ± 1.02 | 29.54 ± 1.21 | 28.05 ± 1.14 | 30.13 ± 1.20 | 28.09 ± 1.07 | 26.08 ± 0.99 |
| Met * | 0.43 ± 0.02 | 0.35 ± 0.01 | 0.61 ± 0.02 | 0.33 ± 0.01 | 0.67 ± 0.02 | 0.54 ± 0.02 | 0.89 ± 0.03 |
| Val * | 5.12 ± 0.21 | 6.02 ± 0.19 | 6.78 ± 0.25 | 7.03 ± 0.26 | 6.92 ± 0.25 | 4.89 ± 0.17 | 7.43 ± 0.25 |
| Phe * | 9.14 ± 0.31 | 10.11 ± 0.38 | 11.22 ± 0.40 | 8.09 ± 0.30 | 8.96 ± 0.29 | 10.22 ± 0.40 | 9.99 ± 0.39 |
| Ile * | 3.12 ± 0.12 | 4.05 ± 0.11 | 4.32 ± 0.14 | 2.98 ± 0.09 | 3.05 ± 0.10 | 4.87 ± 0.15 | 4.77 ± 0.13 |
| Leu * | 7.69 ± 0.29 | 5.63 ± 0.21 | 8.05 ± 0.31 | 6.09 ± 0.23 | 7.24 ± 0.26 | 7.06 ± 0.27 | 9.08 ± 0.33 |
| T | 110.04 ± 1.57 | 113.96 ± 1.52 | 124.84 ± 1.72 | 116.08 ± 1.59 | 120.76 ± 1.66 | 117.96 ± 1.55 | 121.69 ± 1.59 |
| E | 44.39 ± 0.81 | 46.87 ± 0.83 | 53.51 ± 0.90 | 45.75 ± 0.75 | 49.35 ± 0.81 | 48.2 ± 0.76 | 52.06 ± 0.86 |
| NE | 65.65 ± 1.34 | 67.09 ± 1.27 | 71.33 ± 1.46 | 70.33 ± 1.39 | 71.41 ± 1.45 | 69.76 ± 1.34 | 69.63 ± 1.34 |
| E/T (%) | 40.34 | 41.13 | 42.86 | 39.41 | 40.87 | 40.86 | 42.78 |
| E/NE (%) | 67.62 | 69.86 | 75.02 | 65.05 | 69.11 | 69.09 | 74.77 |
Note: *: essential amino acids; E: total content of essential amino acids; NE: total content of non-essential amino acids; T: total content of amino acids.