## 2 Results and Discussion
### Aroma Compounds of 15 Brands of EVOOs Extracted by SPME and SAFE
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Compounds** & **CAS** & \multicolumn{2}{c}{**LRI**} & \multicolumn{1}{c}{**Odor Property**} & **ID 1** & \multicolumn{1}{c}{**Extraction**} & \multicolumn{1}{c}{**Brands of EVOOs 2**} \\ \cline{2-7}  & & **DB-Wax** & **DB-S** & & & & & \\ \hline _Aldehydes_ & & & & & & & \\ (E-2)-Deconal & 3913-81-3 & 1640 & 1264 & tallow & LRI, MS & SPME/SAFE & 1-9, 11-157-15 \\ \(\lambda\)-Directional & 2463-77-6 & 1748 & 1369 & soap, fat, green & LRI, MS & SPME/SAFE & 3/1,6,8,14 \\ (E-2)-Dodecan & 2047-84-5 & 1749 & green, fat, sweet & LRI, MS & SAFE & 3,7 \\ (E-2)-Dodecan & 25152-845 & 1803 & 1321 & fried, vax, fat & LRI, MS & SPME/SAFE & 1-3,5, 11,35, 7, 13,14 \\ Hepanal & 1117-7 & 1181 & 902 & fat, citrus, mancid & LRI, MS & SPME/SAFE & 1-3,5, 11, 13, 157, 3, 6, 7, 13, 15 \\ _Ketones_ & & & & & & \\ 2-Partanone & 107-87-9 & 977 & ether, fruit & LRI, MS & SPME & -16 \\ 3-Partanone & 96-22-0 & 980 & ether & LRI, MS & SPME & 4+8, 10, 13-15 \\ 1-Penten-3 one & 1629-89 & 1017 & \textless{}800 & fish, pungert & LRI, MS & O & SPME & 4, 13-15 \\ 2-Octane & 1113-17 & 1281 & soap, gasoline & LRI, MS, O, STD & SPME/SAFE & 1,3, 12, 13/3 \\ 1-Octen-3 one & 4312-29-46 & 1302 & mushroom, metal & O, STD & SAFE & 1-15 \\ 6-Methyl-3 hepten-2 one & 1103-90 & 1331 & 987 & pepper, mushroom, rubber & LRI, MS, O, STD & SPME/SAFE & 1-15/15 \\ 2-Nononance & 8215-55 & 1404 & not milk, soap & O, STD & SAFE & 3,6, 6, 13-15 \\ 3,5-Octane2-2 one & 38284-27-4 & 1511 & 1072 & fruit, fat, mushroom & LRI, MS & SPME/SAFE & 1,5,9, 11-157-10, 12-15 \\ Acceptance & 98-66-2 & 1649 & must, flower, almond & LRI, MS & SPME & 2,5 \\ _Acids_ & & & & & & \\ Acetic acid & 64-19-74 & 1435 & sour & LRI, MS, O, STD & SPME/SAFE & 1, 4, 5, 8, 11, 13, 157-13, 15 \\ Propionic acid & 79-08-4 & 1524 & pungert, mancid, soy & LRI, MS, O & SPME/SAFE & 1-3, 5, 6, 9, 11-15/2, 3, 6-10, 12, 14, 15 \\ Hexanoic acid & 142-62-1 & 1832 & 990 & sweat & LRI, MS, O & SPME/SAFE & 1, 7, 7, 11, 13, 152, 3, 7, 9, 11, 13, 15 \\ Nonanoic acid & 112-05-0 & & 1273 & green, fat & LRI, MS & SPME/SAFE & 1,2, 5, 7, 9, 10, 12, 13, 15/1, 6, 8, 10, 13-15 \\ _Esters_ & & & & & & \\ Phyl acetate & 141-78-6 & \textless{}900 & pinepipel & LRI, MS & SPME & 2-4, 8, 10, 13 \\ Methyl hexanoate & 106-70-7 & 922 & fruit, fresh, sweet & LRI, MS, O & SPME & 3,6 \\ Ethyl Hexanoate & 123-66-0 & 1231 & apple peel, fruit & LRI, MS & SPME/SAFE & 2, 3, 6, 23, 5 \\ Heylyl acetate & 1429-97 & 1268 & 1013 & fruit, herb & LRI, MS & SPME/SAFE & 1-15/15 \\ (Z)-3-HeynJ acetate & 3681-71-8 & 1311 & 1007 & green, banana & LRI, MS, STD & SPME/SAFE & 1-15/15-15 \\ Lindard acetate & 115-95-95 & 1544 & sweet, fruit & LRI, MS & SPME & 5 \\ Methyl benzoate & 935-83 & 1613 & prune, lettuce, herb, sweet & LRI, MS, O & SPME/SAFE & 1-157-9, 10, 12-14 \\ \(\gamma\)-Butylrolactone & 96-48-0 & 1626 & caramel, sweet & LRI, MS & SPME & 2, 3 \\ Methyl octanoate & 11-11-5 & 1123 & orange & red, MS & SPME & 2, 3,6 \\ Ethyl benzoate & 938-00 & 1661 & 1172 & chamomile, flower, celery, fruit & LRI, MS & SPME/SAFE & 1-7, 9, 11/27-9 \\ \(\gamma\)-Hexanolide & 695-06-7 & 1701 & coumarin, sweet & LRI, MS & SPME & 7 \\ Methyl salicate & 119-35-8 & 1769 & 1199 & peppermit & LRI, MS & SPME/SAFE & 4-10, 12-152-5, 7, 9-11, 13-15 \\ Nonyl ethanoate & 143-13-5 & 1308 & sweet, fruit & LRI, MS & SPME & 7 \\ Ruyl acetate & 123-86-4 & 815 & pear & LRI, MS & SAFE & 1, 4, 5 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._