## 3 Results and Discussion
### Volatile Compounds by GC-MS  
The data were preprocessed by MSdial software version 4. and resulted in a table containing 105 samples, 212 mass features, and their respective areas. This table was curated and 37 mass features remained in the table, labeled using the number sequence (1 to 37), but only 31 mass features were significantly different between samples. Twenty-nine mass features were putatively identified based on the NIST library of the GC-MS equipment and the literature (Table 3). \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Feature** & **R. I. lit** & **R.I. exp** & **Compounds** & **Class** & **Reference** & **Biological Properties—Predictive PASS Software** \\ \hline
1 & 939 & 940 & \(\alpha\)-Pinene & M & [7] & \multicolumn{2}{c}{Phobic disorders treatment and carminative} \\ \hline
2 & 975 & 974 & Sabinene & M & [7] & \multicolumn{2}{c}{Antininflammatory and antineoplastic} \\ \hline
3 & 979 & 978 & \(\beta\)-Pinene & M & [7] & \multicolumn{2}{c}{Ovalation inhibitor and cardiovascular analeptic} \\ \hline
4 & 990 & 994 & \(\beta\)-Myrcene & M & [30] & \multicolumn{2}{c}{Mucomembranous protector and antineoplastic} \\  & & & & & & (breast cancer) \\ \hline
5 & 1002 & 1007 & \(\alpha\)-Phellandrene & M & [7] & \multicolumn{2}{c}{Carminative and fibrinolytic} \\ \hline
6 & 1011 & 1017 & 3-Carene & M & [7] & \multicolumn{2}{c}{Phobic disorders treatment and carminative} \\ \hline
7 & 1026 & 1030 & \(p\)-Cymene & M & [7] & \multicolumn{2}{c}{Antiecezematic and carminative} \\ \hline
8 & 1029 & 1030 & D-Limonene & M & [7] & \multicolumn{2}{c}{Apoptosis agonist and antineoplastic} \\ \hline
9 & 1050 & 1049 & \(\beta\)-Ocimene & M & [7] & \multicolumn{2}{c}{Apoptosis agonist and mucomembrane protector} \\ \hline
10 & - & 1057 & Unknown & - & - & - \\ \hline
11 & 1059 & 1059 & \(\gamma\)-Terpinene & M & [7] & \multicolumn{2}{c}{Phobic disorders treatment and carminative} \\ \hline
12 & 1086 & 1089 & Terpinolene & M & [31] & \multicolumn{2}{c}{Antiecezematic and carminative} \\ \hline
13 & - & 1102 & Unknown & - & - & - \\ \hline
14 & - & 1131 & Unknown & - & - & - \\ \hline
15 & 1177 & 1177 & Terpinen-4-ol & M a & [7] & \multicolumn{2}{c}{Antiseborrheic, antiecezematic and carminative} \\ \hline
16 & - & 1208 & Unknown & - & - & \\ \hline
17 & - & 1348 & Unknown & - & & - \\ \hline
18 & 1374 & 1368 & Isolatedene & S & [32] & \multicolumn{2}{c}{Transplant rejection treatment} \\ \hline
19 & 1375 & 1381 & \(\alpha\)-Copaene & S & [31,33] & \multicolumn{2}{c}{carminative and anticancer} \\ \hline
20 & 1387 & 1379 & \(\beta\)-[PERSON] & S & [3] & \multicolumn{2}{c}{Anticancer and prostate disorders treatment} \\ \hline
21 & - & 1381 & Unknown & - & - & - \\ \hline
22 & 1390 & 1396 & \(\beta\)-Elemene & S & [7] & \multicolumn{2}{c}{Carminative and anti-inflammatory} \\ \hline
23 & 1409 & 1407 & \(\alpha\)-[PERSON] & S & [3] & \multicolumn{2}{c}{Transplant rejection treatment} \\ \hline
24 & 1419 & 1420 & [PERSON] & S & [7] & \multicolumn{2}{c}{Antineoplastic and anti-inflammatory} \\ \hline
25 & - & 1424 & Unknown & - & - & - \\ \hline
26 & 1441 & 1440 & Aromandendrene & S & [7] & \multicolumn{2}{c}{Antineoplastic and antiosteoporosis} \\ \hline
27 & 1454 & 1451 & Humulene & S & [7] & \multicolumn{2}{c}{Antineoplastic and anti-inflammatory} \\ \hline
28 & 1460 & 1460 & Alloaromadendrene & S & [7] & \multicolumn{2}{c}{Antineoplastic and antiecezematic} \\ \hline
29 & 1478 & 1472 & \(\gamma\)-Muuronelene & S & [33] & \multicolumn{2}{c}{Antiecezematic and carminative} \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Volatile compounds of _Schinus terbeinthilofolia_ leaves are putatively identified by GC-MS and other references for these compounds in the literature. The PCA scores plot (PC1 xPC2) (Figure 3A) explained 28.3% of the variation on the X axis and a further 13% on the Y axis, with a total of 41.3% of explained data variance by PCA. This result shows that the main difference in composition was between T1 and the group formed by T2, T3, and T4.