Table 1.
Phytochemical screening (qualitative analysis) of the lyophilized extracts of S. praealtum (stem, leaf and root) by GC-MS.
| Peak | tR | Compound name | %A | Quality |
|---|---|---|---|---|
| Leaf of S. praealtum | ||||
| 1 | 34.014 | Phytol | 60.92 | 91 |
| 2 | 41.174 | Propyl pentil phthalate | 30.08 | 91 |
| Stem of S. praealtum | ||||
| 1 | 31.218 | Hexadecanoic acid | 5.56 | 99 |
| 2 | 31.852 | Ethyl hexadecanoate | 10.88 | 96 |
| 3 | 34.017 | Phytol | 5.06 | 91 |
| 4 | 34.371 | Octadecadienoic acid | 2.39 | 98 |
| 5 | 34.485 | Hexadecatrienal | 2.95 | 72 |
| 6 | 34.901 | Ethyl linoleate | 18.41 | 99 |
| 7 | 35.016 | Ethyl octadecatrienoate | 16.81 | 99 |
| 8 | 40.552 | Monopalmitin | 4.73 | 91 |
| 9 | 41.186 | Di octyl phthalate | 8.62 | 91 |
| 10 | 50.468 | Sitosterol | 24.60 | 99 |
| Root of S. praealtum | ||||
| 1 | 29.394 | Isobutyl undecyl phthalate | 11.54 | 74 |
| 2 | 31.236 | Not determined | 8.84 | – |
| 3 | 31.850 | Not determined | 6.07 | – |
| 4 | 34.889 | Not determined | 7.81 | – |
| 5 | 41.184 | Di isoctil phthalate | 65.74 | 91 |
tR: retention time (minutes). %A: percentage of normalized area. Quality indexes > 70 were adopted