Table 4.
The measured contents of amino acids in leaves of Nitraria tangutorum Bobr. (mg/g).
| Amino Acid | Region | ||||||
|---|---|---|---|---|---|---|---|
| Dagele | Zongjia | Nuomuhong | Delingha | Hedong | Dulan | Gahai | |
| His | 1.34 ± 0.03 | 1.54 ± 0.05 | 2.11 ± 0.08 | 2.09 ± 0.07 | 1.87 ± 0.06 | 1.02 ± 0.03 | 2.05 ± 0.05 |
| Orn | 0.23 ± 0.01 | 0.11 ± 0.01 | 0.32 ± 0.01 | 0.09 ± 0.01 | 0.33 ± 0.01 | 0.26 ± 0.01 | 0.29 ± 0.01 |
| Arg | 3.87 ± 0.13 | 3.45 ± 0.14 | 4.12 ± 0.16 | 3.98 ± 0.13 | 2.56 ± 0.11 | 4.09 ± 0.16 | 3.37 ± 0.13 |
| Lys * | 0.16 ± 0.01 | 0.23 ± 0.01 | 0.45 ± 0.01 | 0.51 ± 0.01 | 0.64 ± 0.02 | 0.38 ± 0.01 | 0.25 ± 0.01 |
| Ser | 4.62 ± 0.18 | 4.76 ± 0.17 | 5.32 ± 0.21 | 3.99 ± 0.19 | 4.21 ± 0.17 | 4.34 ± 0.16 | 6.04 ± 0.24 |
| Asp | 8.98 ± 0.34 | 9.32 ± 0.33 | 8.23 ± 0.32 | 7.98 ± 0.31 | 10.34 ± 0.40 | 8.42 ± 0.33 | 9.25 ± 0.37 |
| Glu | 17.65 ± 0.68 | 18.93 ± 0.71 | 18.32 ± 0.69 | 16.87 ± 0.64 | 17.34 ± 0.55 | 17.54 ± 0.62 | 16.99 ± 0.52 |
| Thr * | 3.98 ± 0.15 | 2.76 ± 0.11 | 4.12 ± 0.16 | 3.46 ± 0.13 | 5.60 ± 0.22 | 4.09 ± 0.16 | 3.78 ± 0.15 |
| Gly | 4.12 ± 0.15 | 5.09 ± 0.19 | 4.89 ± 0.17 | 3.98 ± 0.18 | 5.43 ± 0.22 | 4.01 ± 0.16 | 3.45 ± 0.13 |
| Trp * | 1.43 ± 0.06 | 1.21 ± 0.04 | 1.89 ± 0.06 | 0.95 ± 0.03 | 1.67 ± 0.06 | 1.45 ± 0.06 | 1.32 ± 0.04 |
| Ala | 4.54 ± 0.17 | 4.89 ± 0.16 | 3.98 ± 0.15 | 5.45 ± 0.19 | 4.67 ± 0.17 | 3.69 ± 0.14 | 4.56 ± 0.18 |
| Tyr | 2.57 ± 0.09 | 2.78 ± 0.08 | 3.05 ± 0.13 | 1.98 ± 0.07 | 2.23 ± 0.09 | 2.87 ± 0.08 | 3.42 ± 0.14 |
| Pro | 19.87 ± 0.87 | 20.12 ± 0.79 | 18.90 ± 0.67 | 19.45 ± 0.75 | 18.34 ± 0.78 | 19.67 ± 0.80 | 17.87 ± 0.69 |
| Met * | 0.34 ± 0.01 | 0.25 ± 0.01 | 0.43 ± 0.01 | 0.39 ± 0.01 | 0.48 ± 0.02 | 0.33 ± 0.01 | 0.46 ± 0.01 |
| Val * | 5.67 ± 0.23 | 4.57 ± 1.76 | 5.08 ± 0.21 | 6.12 ± 0.24 | 5.23 ± 0.21 | 5.62 ± 0.19 | 4.38 ± 0.17 |
| Phe * | 5.43 ± 0.21 | 4.78 ± 0.20 | 6.02 ± 0.24 | 5.56 ± 0.22 | 5.78 ± 0.19 | 4.76 ± 0.15 | 5.21 ± 0.18 |
| Ile * | 3.88 ± 0.14 | 4.83 ± 0.16 | 5.08 ± 0.21 | 3.98 ± 0.15 | 4.03 ± 0.14 | 4.67 ± 1.18 | 5.21 ± 0.21 |
| Leu * | 5.97 ± 0.24 | 4.65 ± 0.19 | 5.98 ± 0.23 | 6.32 ± 0.25 | 5.57 ± 0.22 | 5.90 ± 0.25 | 4.09 ± 0.15 |
| T | 94.65 ± 1.28 | 94.27 ± 2.14 | 98.29 ± 1.18 | 93.15 ± 1.19 | 96.32 ± 1.18 | 93.11 ± 1.67 | 91.99 ± 1.09 |
| E | 26.86 ± 0.45 | 23.28 ± 1.79 | 29.05 ± 0.48 | 27.29 ± 0.46 | 29 ± 0.45 | 27.2 ± 1.24 | 24.7 ± 0.39 |
| N | 67.79 ± 1.20 | 70.99 ± 1.16 | 69.24 ± 1.08 | 65.86 ± 1.10 | 67.32 ± 1.10 | 65.91 ± 1.11 | 67.29 ± 1.01 |
| E/T (%) | 28.38 | 24.70 | 29.56 | 29.30 | 30.11 | 29.21 | 26.85 |
| E/NE (%) | 39.62 | 32.79 | 41.96 | 41.44 | 43.08 | 41.27 | 36.71 |
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.