Table 7 Thermo-gravimetric data of PAK gum samples from the female and the male trees of different regions in Kurdistan province, Iran
From: Chemical composition and thermal properties of Pistacia atlantica subsp. Kurdica gum
Gender | Regions | No. of decomposition stage | Temprature range (◦C) | Derivative mass loss peak (◦C) | Mass loss% | Activation energy (kJ mol−1)a |
|---|---|---|---|---|---|---|
Female | Armardeh | 1 | 27.11–162 | 93.68 | 22.53 | 52.24 |
2 | 162–275 | – | 32.60 | – | ||
3 | 275–402 | 362.3 | 91.15 | 56.42 | ||
4 | 402–600 | – | 99.54 | – | ||
Kanisur | 1 | 30.71–149 | 86.47 | 21.96 | 55.96 | |
2 | 149–241 | – | 29.75 | – | ||
3 | 241–379 | 339.80 | 80.02 | 39.77 | ||
4 | 379–600 | 405.76 | 99.48 | 47.81 | ||
Dezli | 1 | 26.79–164.82 | 77.21 | 24.86 | 47.64 | |
2 | 165.133–207.31 | – | 28.84 | – | ||
3 | 207.70–286.67 | 257.99 | 43.39 | 14.94 | ||
4 | 287.22–399.33 | 359.46 | 92.19 | 50.96 | ||
5 | 399.43–600 | – | 99.5 | – | ||
Hawraman | 1 | 29.60–142.74 | 84.07 | 19.82 | 68.92 | |
2 | 143.20–201.06 | – | 25.99 | – | ||
3 | 201.83–309.75 | 289.67 | 52.65 | 28.08 | ||
4 | 310.40–388.08 | 352.17 | 90.52 | 48.98 | ||
5 | 388.89–600 | – | 99.52 | – | ||
Sarvabad | 1 | 29.67–149.85 | 93.07 | 19.05 | 66.98 | |
2 | 150.21–278.82 | – | 33.91 | – | ||
3 | 279.17–402.36 | 354.315 | 90.34 | 52.28 | ||
4 | 402.36–600 | – | 99.71 | – | ||
Marivan | 1 | 29.80–160.92 | 80.28 | 22.42 | 64.06 | |
2 | 161.26–276.08 | – | 32.87 | – | ||
3 | 276.12–402.73 | 357.59 | 90.22 | 52.78 | ||
4 | 403–600 | – | 99.52 | – | ||
Male | Armardeh | 1 | 26.67–156.23 | 84.20 | 23.43 | 62.51 |
|  | 2 | 157.19–241.49 | – | 29.49 | – | |
|  | 3 | 242.638–409.53 | 344.14 | 87.10 | 39.62 | |
|  | 4 | 410.18–600 | – | 99.51 | – | |
Kanisur | 1 | 26.49–171.38 | 85.20 | 23.46 | 58.93 | |
|  | 2 | 172.273–256.47 | – | 29.49 | – | |
|  | 3 | 320.131–395.24 | 350.73 | 87.1 | 48.83 | |
|  | 4 | 395.64–600 | – | 99.51 | – | |
Dezli | 1 | 26.79–164.82 | 80 | 27.72 | 45.22 | |
|  | 2 | 165.133–207.31 | – | 51.48 | – | |
|  | 3 | 207.70–286.67 | 270.69 | 91.18 | 28.5 | |
|  | 4 | 287.22–399.33 | 349.85 | 99.62 | 54 | |
Hawraman | 1 | 31.38–124.21 | 93.15 | 14.07 | 53.02 | |
|  | 2 | 124.66–292.79 | – | 33.55 | – | |
|  | 3 | 292.80–401.55 | 363.23 | 90.97 | 57.97 | |
|  | 4 | 402.315–600 | – | 99.71 | – | |
Sarvabad | 1 | 32.60–179.97 | 97.65 | 23.25 | 59.22 | |
|  | 2 | 180.36–273.40 | – | 30.75 | – | |
|  | 3 | 273.56–402.68 | 358.69 | 90.09 | 57.59 | |
|  | 4 | 402.98–600 | – | 99.52 | – | |
Marivan | 1 | 26.86–197.66 | 83.30 | 28.15 | 64.06 | |
|  | 2 | 198.40–309.77 | 278.21 | 56.12 | – | |
|  | 3 | 309.83–385.38 | 350.73 | 90 | 52.78 | |
|  | 4 | 385.68–600 | – | 99.57 | – |