## 2 Results and Discussion
### Volatile Constituents Profile of Fresh True Lavender Leaves
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**RT (min)**} & \multicolumn{4}{c}{**Retention Indexes (RI)**} & \multirow{2}{*}{**Content [\%] 4**} \\ \cline{3-4}  & & & **RI\_lit 1** & & **RI\_lit 2** & **RI\_exp 3** \\ \hline
**Terpinen-4-ol** & 14.631 & 1174 & 1177 & 1181 & 0.59 \(\pm\) 0.07 \\ \(m\)**-Cyman-8-ol** & 14.774 & 1176 & 1179 & 1184 & 2.09 \(\pm\) 0.25 \\ \(p\)**-Cyman-8-ol** & 14.914 & 1179 & 1182 & 1188 & 4.09 \(\pm\) 0.67 \\ \(\alpha\)**-Terpineol** & 15.082 & 1186 & 1189 & 1193 & 0.31 \(\pm\) 0.06 \\
**Myrtenol** & 15.278 & 1194 & 1195 & 1198 & 0.20 \(\pm\) 0.14 \\ _trans_-Pipeirch & 15.671 & 1207 & 1208 & 1210 & 0.65 \(\pm\) 0.07 \\ _cis_-Carveol & 16.035 & 1215 & 1217 & 1222 & 0.37 \(\pm\) 0.07 \\
**(Z)**-Ocimeno & 16.159 & 1226 & 1229 & 1226 & 0.26 \(\pm\) 0.07 \\ _exo_-Fenchyl acetate** & 16.356 & 1229 & 1232 & 1232 & 0.49 \(\pm\) 0.04 \\ _cis_-Verbenol & 16.623 & 1237 & 1244 & 1240 & tr \\ Cumin aldehyde & 16.748 & 1238 & 1241 & 1244 & 1.92 \(\pm\) 0.59 \\ Carvone & 16.874 & 1246 & 1243 & 1247 & 1.08 \(\pm\) 0.28 \\
**Geraniol** & 17.055 & 1249 & 1252 & 1253 & 0.33 \(\pm\) 0.29 \\
**Linalyl acetate** & 17.263 & 1254 & 1257 & 1259 & 2.21 \(\pm\) 0.73 \\
**Geraniol** & 17.529 & 1264 & 1267 & 1267 & 0.10 \(\pm\) 0.08 \\ _trans_-Carvone oxide & 18.021 & 1273 & 1276 & 1281 & 0.33 \(\pm\) 0.07 \\ Bornyl acetate & 18.301 & 1284 & 1285 & 1288 & 5.57 \(\pm\) 0.82 \\
**Lavanduly acetate** & 18.428 & 1288 & 1290 & 1292 & 1.72 \(\pm\) 0.25 \\
**Terpinen-4-ol acetate** & 18.761 & 1299 & 1299 & 1301 & 0.18 \(\pm\) 0.02 \\
**unknown** & 19.124 & - & - & 1314 & 0.61 \(\pm\) 0.09 \\
**Myrtenyl acetate** & 19.435 & 1324 & 1326 & 1326 & 0.16 \(\pm\) 0.06 \\ \(\delta\)**-Elemene** & 19.749 & 1335 & 1337 & 1337 & tr \\ \(\alpha\)**-Terpinyl acetate** & 20.036 & 1346 & 1349 & 1347 & 0.26 \(\pm\) 0.08 \\ \(\alpha\)**-Cubebene** & 20.179 & 1348 & 1351 & 1351 & tr \\ \(\alpha\)**-Longipinene** & 20.351 & 1350 & 1352 & 1357 & 0.18 \(\pm\) 0.01 \\ unknown & 20.465 & - & - & 1361 & 0.31 \(\pm\) 0.05 \\
**Siplipherlo-4-7(14)-diene** & 20.578 & 1358 & 1362 & 1365 & tr \\
**Neryl acetate** & 20.748 & 1359 & 1364 & 1371 & 0.26 \(\pm\) 0.06 \\ \(\alpha\)**-Copaene** & 21.134 & 1374 & 1376 & 1383 & 0.14 \(\pm\) 0.02 \\
**Geranyl acetate** & 21.248 & 1379 & 1381 & 1387 & 0.49 \(\pm\) 0.11 \\ \(\alpha\)**-Bourbonene** & 21.375 & 1387 & 1388 & 1391 & tr \\ unknown & 21.461 & 1394 & 1396 & 1394 & tr \\ \(\beta\)**-Longipinene** & 21.634 & 1400 & 1400 & 1399 & 0.26 \(\pm\) 0.06 \\ Sesquithujene & 21.833 & 1405 & 1405 & 1409 & tr \\ \(\alpha\)**-Cedrene** & 22.049 & 1410 & 1411 & 1420 & 1.01 \(\pm\) 0.25 \\ (E)**-Carvophyllene** & 22.176 & 1417 & 1419 & 1427 & 6.11 \(\pm\) 1.48 \\ \(\alpha\)**-Bergamotene** & 22.506 & 1432 & 1435 & 1443 & 0.87 \(\pm\) 0.33 \\ Cadina-3.5-diene** & 22.745 & - & 1458 & 1455 & 1.12 \(\pm\) 0.40 \\ (E)**-\(\beta\)**-Farmesene** & 22.889 & 1454 & 1457 & 1462 & 1.35 \(\pm\) 0.38 \\ _cis_-Muurola-4(15).5-diene** & 23.084 & 1465 & 1466 & 1472 & 1.44 \(\pm\) 0.45 \\
**4**-_epi_-\(\alpha\)**-Acordiene** & 23.155 & 1474 & 1475 & 1475 & 0.19 \(\pm\) 0.00 \\ Germacene D & 23.441 & 1484 & 1481 & 1489 & 0.58 \(\pm\) 0.17 \\ \(\beta\)**-Himachalene** & 23.629 & 1500 & 1500 & 1498 & tr \\ unknown & 23.741 & 1502 & - & 1505 & tr \\ \(\alpha\)**-Bulnesene** & 23.840 & 1509 & 1509 & 1511 & 0.92 \(\pm\) 0.16 \\ \(\gamma\)**-Cadinene** & 24.023 & 1513 & 1513 & 1523 & 10.53 \(\pm\) 1.51 \\ _cis_-Calamene** & 24.149 & 1528 & 1529 & 1531 & 0.65 \(\pm\) 0.07 \\
**10**-_epi_-Cubebol** & 24.290 & 1533 & 1535 & 1540 & 0.11 \(\pm\) 0.05 \\
**\(\alpha\)**-Cadinene** & 24.402 & 1537 & 1538 & 1547 & 0.12 \(\pm\) 0.02 \\
**Cadala-1(10).3.8-triene** & 24.473 & - & 1555 & 1552 & tr \\ _trans_-Cadinene ether** & 24.669 & 1557 & - & 1564 & 0.35 \(\pm\) 0.09 \\ unknown & 24.851 & - & - & 1576 & 0.13 \(\pm\) 0.05 \\
**Spathulenol** & 24.950 & 1577 & 1578 & 1582 & 0.25 \(\pm\) 0.05 \\
**Caryophyllene oxide** & 25.158 & 1582 & 1583 & 1595 & 3.31 \(\pm\) 0.18 \\
**1**-_epi_-Cubenol** & 25.552 & 1627 & 1628 & 1628 & 0.56 \(\pm\) 0.03 \\
**\(\tau\)**-Cadinol** & 25.860 & 1635 & 1340 & 1656 & 2.04 \(\pm\) 0.55 \\
**unknown** & 26.056 & - & - & 1673 & 0.11 \(\pm\) 0.03 \\
**14**-**Hydroxy-4.5-dihydroxy**-**hydroxy**yph**y**ph**y**ph**y**ph**y**ph**y**ph**y**ph**y**ph**y**ph**y**y**ph**y**ph**y**ph**y**y**ph**y**ph**y**ph**y**ph**y**y**ph**y**ph**y**ph**y**ph**y**y**ph**y**ph**y**y**ph**yThe main headspace volatile constituents of the examined true lavender leaves samples were \(p\)-cymen-8-ol (4.09% \(\pm\) 0.67), a mixture of borneol and lavandulol (4.66% \(\pm\) 0.69), \(o\)-cymene (4.81% \(\pm\) 0.52), bornyl acetate (5.57% \(\pm\) 0.82), (\(E\))-caryophyllene (6.11% \(\pm\) 1.48), eucalyptt (7.28% \(\pm\) 1.06) and \(\gamma\)-cadinene (10.53 \(\pm\) 1.51).