## 3 Results
### Chemical Composition and Yields of Essential Oils from P. rivinoides
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Class**} & \multirow{2}{*}{**Compounds \({}^{\bullet}\)**} & \multirow{2}{*}{**RI\({}_{\text{IH}}\)**} & \multirow{2}{*}{**RI\({}_{\text{cal}}\)**} & \multirow{2}{*}{**RI\({}_{\text{cal}}\)**} & \multirow{2}{*}{**Molecular Formula**} & \multicolumn{3}{c}{**Relative Percentage (Mean \(\pm\) Standard Deviation) \({}^{\star}\)**} \\ \cline{5-8}  & & & & & & **Roots** & **Steams** & **Branches** & **Leaves** \\ \hline NO & Santoline triene & 906 & 906 & C\({}_{10}\)H\({}_{16}\) & - & - & 0.15 \(\pm\) 0.10 & - \\ NO & \(\alpha\)-Thujene & 924 & 924 & C\({}_{10}\)H\({}_{16}\) & 2.68 \(\pm\) 0.03 & - & - & 0.47 \(\pm\) 0.03 \\ NO & \(\alpha\)**-Pinene** & **932** & 933 & C\({}_{10}\)H\({}_{16}\) & 1.07 \(\pm\) 0.05 & 1.47 \(\pm\) 0.06 & **20.87 \(\pm\) 0.21** & **31.90 \(\pm\) 0.44** \\ NO & Camphene & 946 & 945 & C\({}_{10}\)H\({}_{16}\) & 0.04 \(\pm\) 0.02 & - & 0.24 \(\pm\) 0.40 & 1.68 \(\pm\) 0.22 \\ NO & Sabinene & 969 & 969 & C\({}_{10}\)H\({}_{16}\) & 0.51 \(\pm\) 0.03 & - & - & 0.37 \(\pm\) 0.03 \\ NO & \(\beta\)**-Pinene** & **974** & 973 & C\({}_{10}\)H\({}_{16}\) & 0.23 \(\pm\) 0.01 & - & **64.61 \(\pm\) 0.22** & **20.96 \(\pm\) 0.47** \\ NO & Myrcne & 988 & 987 & C\({}_{10}\)H\({}_{16}\) & 0.43 \(\pm\) 0.02 & - & - & 3.23 \(\pm\) 0.50 \\ NO & \(\alpha\)-Plelandrendre & 1002 & 1000 & C\({}_{10}\)H\({}_{16}\) & 0.12 \(\pm\) 0.04 & - & - & 0.63 \(\pm\) 0.18 \\ NO & \(\alpha\)-Terpinene & 1014 & 1012 & C\({}_{10}\)H\({}_{16}\) & - & - & 0.03 \(\pm\) 0.04 & 0.24 \(\pm\) 0.17 \\ NO & \(p\)-Cymene & 1020 & 1020 & C\({}_{10}\)H\({}_{16}\) & 0.64 \(\pm\) 0.03 & - & - & 0.35 \(\pm\) 0.61 \\ NO & Limonene & 1024 & 1022 & C\({}_{10}\)H\({}_{16}\) & 0.59 \(\pm\) 0.03 & - & 3.76 \(\pm\) 0.45 & 1.80 \(\pm\) 0.19 \\ NO & \(\beta\)-Plelandrendre & 1025 & 1024 & C\({}_{10}\)H\({}_{16}\) & 0.13 \(\pm\) 0.07 & - & - & 1.06 \(\pm\) 0.05 \\ NO & \(Z\)-\(\beta\)-Ocimeene & 1032 & 1034 & C\({}_{10}\)H\({}_{16}\) & - & - & 0.29 \(\pm\) 0.04 & - \\ NO & \(E\)-\(\beta\)-Ocimeene & 1044 & 1048 & C\({}_{10}\)H\({}_{16}\) & - & - & 0.42 \(\pm\) 0.02 & 0.20 \(\pm\) 0.10 \\ NO & \(\gamma\)-Terpinene & 1054 & 1055 & C\({}_{10}\)H\({}_{16}\) & 0.1 \(\pm\) 0.01 & - & 0.52 \(\pm\) 0.03 & 0.35 \(\pm\) 0.02 \\ OM & \(Z\)-Sabinene hydrate & 1065 & 1068 & C\({}_{10}\)H\({}_{18}\)O & - & - & 0.99 \(\pm\) 0.22 & 0.08 \(\pm\) 0.01 \\ OT & 3-Isopropyl-2- & & 1090 & 1094 & C\({}_{8}\)H\({}_{12}\)N\({}_{2}\)O & 0.05 \(\pm\) 0.01 & - & - & - \\ OM & Linalo & 1095 & 1096 & C\({}_{10}\)H\({}_{22}\)O & - & - & 1.73 \(\pm\) 0.05 & 1.83 \(\pm\) 0.04 \\ OM & \(E\)-Sabinene hydrate & 1098 & 1097 & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & - & - & 0.24 \(\pm\) 0.01 \\ OM & iso-3-Turjand & 1134 & 1132 & C\({}_{10}\)H\({}_{18}\)O & 0.04 \(\pm\) 0.01 & - & - & - \\ OM & \(Z\)-\(p\)-Menth-2-\(\varepsilon\)-on1 & 1136 & 1136 & C\({}_{10}\)H\({}_{18}\)O & - & - & 0.14 \(\pm\) 0.01 \\ OM & Campphor & 1141 & 1142 & C\({}_{10}\)H\({}_{16}\)O & 0.76 \(\pm\) 0.02 & - & - & - \\ OM & \(\alpha\)-Terpineol & 1186 & 1187 & C\({}_{10}\)H\({}_{18}\)O & - & - & 0.93 \(\pm\) 0.13 & - \\ OM & Verbenone & 1204 & 1208 & C\({}_{10}\)H\({}_{14}\)O & - & - & 0.12 \(\pm\) 0.07 & - \\ OM & Piperitone & 1249 & 1251 & C\({}_{10}\)H\({}_{16}\)O & 0.17 \(\pm\) 0.04 & - & - & - \\ AR & \(E\)-Anetole & 1282 & 1285 & C\({}_{10}\)H\({}_{10}\)O & - & - & 0.53 \(\pm\) 0.04 & 0.15 \(\pm\) 0.34 \\ AR & Safrole & 1285 & 1289 & C\({}_{10}\)H\({}_{10}\)O\({}_{2}\) & 0.08 \(\pm\) 0.01 & - & - & - \\ OM & \(Z\)-Sabinyl acetate & 1289 & 1294 & C\({}_{12}\)H\({}_{18}\)O\({}_{2}\) & - & - & 0.12 \(\pm\) 0.02 & - \\ OM & Tujanol acetate & 1295 & 1298 & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & - & - & 0.44 \(\pm\) 0.03 & - \\ NS & \(\beta\)-Elemente & 1335 & 1339 & C\({}_{15}\)H\({}_{24}\) & - & - & 0.33 \(\pm\) 0.01 & 0.14 \(\pm\) 0.17 \\ OS & \(\alpha\)-Terpinyl acetate & 1346 & 1348 & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & - & - & 1.54 \(\pm\) 0.04 \\ OS & Neryl acetate & 1359 & 1362 & C\({}_{12}\)H\({}_{20}\)O\({}_{2}\) & - & - & 0.21 \(\pm\) 0.04 & 0.35 \(\pm\) 0.02 \\ NS & \(\alpha\)-Copaeene & 1374 & 1375 & C\({}_{15}\)H\({}_{24}\) & - & - & 0.40 \(\pm\) 0.22 \\ NS & Isoledene & 1374 & 1378 & C\({}_{15}\)H\({}_{25}\) & 1.02 \(\pm\) 0  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Class** & **Compounds \({}^{\bullet}\)** & **RI\({}_{\text{lit}}\)** & **RI\({}_{\text{cal}}\)** & **Molecular Formula** & \multicolumn{4}{c}{**Relative Percentage (Mean \(\pm\) Standard Deviation) \({}^{\ast}\)**} \\ \cline{6-8} NS & \(\gamma\)-Gurjunene & 1475 & 1478 & C\({}_{15}\)H\({}_{24}\) & 0.27 \(\pm\) 0.02 & - & - & - \\ NS & \(\gamma\)-Muroulene & 1479 & 1481 & C\({}_{15}\)H\({}_{24}\) & 0.25 \(\pm\) 0.02 & - & - & - \\ NS & Germacrene D & 1480 & 1490 & C\({}_{15}\)H\({}_{24}\) & 0.10 \(\pm\) 0.01 & - & - & - \\ NS & _E_-Muurola-4(14),5- & 1493 & 1492 & C\({}_{15}\)H\({}_{24}\) & 0.26 \(\pm\) 0.01 & - & - & - \\ OS & _epi_-Cubebol & 1493 & 1499 & C\({}_{15}\)H\({}_{26}\)O & 1.06 \(\pm\) 0.04 & - & - & 1.33 \(\pm\) 0.32 \\ NS & Bicyclogermacrene & 1500 & 1507 & C\({}_{15}\)H\({}_{24}\) & - & - & 0.23 \(\pm\) 0.02 & 5.90 \(\pm\) 0.68 \\ NS & \(\beta\)-Guaienol & 1502 & 1509 & C\({}_{15}\)H\({}_{24}\) & 0.46 \(\pm\) 0.03 & - & - & - \\ NS & \(\delta\)-Amorphene & 1511 & 1512 & C\({}_{15}\)H\({}_{24}\) & 0.46 \(\pm\) 0.01 & - & 0.12 \(\pm\) 0.01 & 0.10 \(\pm\) 0.08 \\ NS & \(\gamma\)-Caldienne & 1513 & 1512 & C\({}_{15}\)H\({}_{24}\) & **9.73 \(\pm\) 0.07** & - & - & 0.70 \(\pm\) 0.02 \\ OS & Cubbol & 1514 & C\({}_{15}\)H\({}_{26}\)O & - & - & - & 0.57 \(\pm\) 0.06 \\ AR & Myristicin & 1517 & 1519 & C\({}_{11}\)H\({}_{23}\)O & 0.05 \(\pm\) 0.01 & - & - & - \\ NS & _E_-Calamene & 1521 & 1525 & C\({}_{15}\)H\({}_{22}\) & - & - & - & 4.04 \(\pm\) 0.21 \\ NS & \(\beta\)-Sesquidelandrene & 1521 & 1529 & C\({}_{15}\)H\({}_{24}\) & - & 0.94 \(\pm\) 0.12 & 0.42 \(\pm\) 0.03 & - \\ NS & _E_-Cadinene & 1522 & 1530 & C\({}_{15}\)H\({}_{24}\) & - & - & - & 0.56 \(\pm\) 0.22 \\ NS & _E_-Cadina-1,4-diene & 1533 & 1540 & C\({}_{15}\)H\({}_{24}\) & 0.06 \(\pm\) 0.01 & - & - & - \\ NS & \(\alpha\)-Cadinene & 1537 & 1542 & C\({}_{15}\)H\({}_{24}\) & - & - & - & 0.56 \(\pm\) 0.09 \\ OS & Elemol & 1548 & 1550 & C\({}_{15}\)H\({}_{26}\)O & - & - & - & 0.07 \(\pm\) 0.01 \\ NS & \(\beta\)-Calacorene & 1564 & 1566 & C\({}_{15}\)H\({}_{26}\)O & 0.59 \(\pm\) 0.02 & - & - & - \\ AR & Isoelemicin & 1568 & 1569 & C\({}_{12}\)H\({}_{16}\)O\({}_{3}\) & 0.03 \(\pm\) 0.01 & - & - & - \\ AR & \(\gamma\)-Asarone & 1572 & 1574 & C\({}_{12}\)H\({}_{16}\)O\({}_{3}\) & 0.05 \(\pm\) 0.01 & - & - & - \\ OS & Spathulenol & 1577 & 1581 & C\({}_{15}\)H\({}_{24}\)O & 0.03 \(\pm\) 0.01 & - & - & 2.30 \(\pm\) 0.15 \\ OS & Caryophyllene oxyde & 1582 & 1580 & C\({}_{15}\)H\({}_{24}\)O & 0.17 \(\pm\) 0.03 & - & - & 0.15 \(\pm\) 0.01 \\ OS & Globulol & 1590 & 1585 & C\({}_{15}\)H\({}_{26}\)O & - & - & 0.42 \(\pm\) 0.04 & 2.76 \(\pm\) 0.55 \\ OS & Viridiflorol & 1592 & 1594 & C\({}_{15}\)H\({}_{26}\)O & - & - & - & 0.34 \(\pm\) 0.02 \\ OS & Cubeban-11-ol & 1595 & 1596 & C\({}_{15}\)H\({}_{26}\)O & - & - & - & 0.17 \(\pm\) 0.01 \\ AR & 6-Methoxydemicnica & 1595 & 1599 & C\({}_{13}\)H\({}_{38}\)O\({}_{4}\) & 0.64 \(\pm\) 0.03 & - & - & - \\ OS & Rosifidoli & 1600 & 1600 & C\({}_{15}\)H\({}_{26}\)O & - & 3.03 \(\pm\) 0.03 & - & 0.41 \(\pm\) 0.37 \\ OS & Guaiol & 1600 & 1603 & C\({}_{15}\)H\({}_{26}\)O & **3.89 \(\pm\) 0.06** & - & - & - \\ OS & 1,10-di-epi-Cubenol & 1618 & 1619 & C\({}_{15}\)H\({}_{26}\)O & - & - & - & 0.26 \(\pm\) 0.10 \\ AR & **Dillipole** & **1620** & 1628 & C\({}_{12}\)H\({}_{14}\)O\({}_{4}\) & 0.83 \(\pm\) 0.03 & **34.12 \(\pm\) 0.46** & - & - \\ OS & \(\alpha\)-Muurololol & 1644 & 1640 & C\({}_{15}\)H\({}_{26}\)O & 0.17 \(\pm\) 0.02 & 1.11 \(\pm\) 0.19 & - & 0.94 \(\pm\) 0.03 \\ OS & Cubenol & 1645 & 1647 & C\({}_{15}\)H\({}_{26}\)O & 0.86 \(\pm\) 0.02 & - & - & 0.14 \(\pm\) 0.02 \\ OS & Agasorgirol & 1646 & 1654 & C\({}_{15}\)H\({}_{26}\)O & 0.12 \(\pm\) 0.01 & - & - & - \\ OS & \(\alpha\)-Cadinol & 1652 & 1659 & C\({}_{15}\)H\({}_{26}\)O & 0.04 \(\pm\) 0.03 & - & - & 0.29 \(\pm\) 0.01 \\ OS & Selin-11-et-\(\alpha\)-ol & 1658 & 1667 & C\({}_{15}\)H\({}_{26}\)O & - & - & - & - \\ AR & **Apiole** & **1677** & 1689 & C\({}_{12}\)H\({}_{14}\)O\({}_{4}\) & **69.68 \(\pm\) 0.18** & **59.32 \(\pm\) 0.24** & - & - \\ OS & Amorfa-4,9-dien-2-ol & 1700 & 1718 & C\({}_{15}\)H\({}_{24}\)O & 0.14 \(\pm\) 0.01 & - & -The PCA revealed the formation of two clusters with a total variance of 90.09%.