## 3 Results and Discussion
### Volatile Aroma Compounds
#### 3.2.7. Esters
\begin{table}
\begin{tabular}{r r r r r r r r} \hline
**Co.** & **Volatile Aroma Compound** & **ID** & **LRI\({}_{\text{exp}}\)** & **LRI\({}_{\text{lit}}\)** & **\(F\)-Ratio** & **Treatment** \\ \hline  & & & & & & \multicolumn{1}{c}{_SCE_} & \multicolumn{1}{c}{_LEV_} \\ \hline  & \multicolumn{2}{c}{_Ethyl esters_} & & & & & \multicolumn{1}{c}{_SCE_} & \multicolumn{1}{c}{_LEV_} \\ EE1 & Ethyl propanoate \(\ddagger\) & MS, LRI & \textless{}1000 & 949 & 2592.195 & 26.25 \(\pm\) 0.37 \({}^{\text{a}}\) & 13.61 \(\pm\) 0.21 \({}^{\text{b}}\) \\ EE2 & Ethyl 3-methylbutyrate \(\ddagger\) & S, MS, LRI & 1065 & 1065 & 578.293 & 12.04 \(\pm\) 0.42 \({}^{\text{a}}\) & 5.27 \(\pm\) 0.25 \({}^{\text{b}}\) \\ EE3 & Ethyl acetylacetate & MS, LRI & 1462 & 1466 & 261.142 & 0.409 \(\pm\) 0.037 \({}^{\text{a}}\) & 0.062 \(\pm\) 0.006 \({}^{\text{b}}\) \\ EE4 & Ethyl pyruvate & MS, LRI & 1270 & 1267 & 163.902 & 8.06 \(\pm\) 1.02 \({}^{\text{b}}\) & 16.00 \(\pm\) 0.33 \({}^{\text{a}}\) \\ EE5 & Ethyl 3-hydroxydecanoate & MS, LRI & 2104 & 2102 & 72.829 & 3.24 \(\pm\) 0.32 \({}^{\text{a}}\) & 1.26 \(\pm\) 0.24 \({}^{\text{b}}\) \\ EE6 & Ethyl 3-hydroxyhexanoate & MS, LRI & 1685 & 1677 & 59.259 & 0.241 \(\pm\) 0.019 \({}^{\text{b}}\) & 0.343 \({}^{\text{a}}\) \\ EE7 & Ethyl lactate (mg/L) \(\ddagger\) & S, MS, LRI & 1341 & 1341 & 52.936 & 11.83 \(\pm\) 0.95 \({}^{\text{b}}\) & 46.02 \(\pm\) 8.08 \({}^{\text{a}}\) \\ EE8 & Ethyl 2-methylbutyrate \(\ddagger\) & S, MS, LRI & 1049 & 1049 & 39.279 & 3.94 \(\pm\) 0.33 \({}^{\text{a}}\) & 2.59 \(\pm\) 0.19 \({}^{\text{b}}\) \\ EE9 & Ethyl 9-decenoate isomer I & MS, LRI & 1697 & 1697 & 16.676 & 43.45 \(\pm\) 1.76 \({}^{\text{b}}\) & 85.87 \(\pm\) 17.91 \({}^{\text{a}}\) \\ EE10 & Ethyl isobutyrate \(\ddagger\) & MS, LRI & \textless{}1000 & 965 & 14.930 & 19.67 \(\pm\) 1.00 \({}^{\text{b}}\) & 26.44 \(\pm\) 2.86 \({}^{\text{a}}\) \\ EE11 & Ethyl _cis_-11-hexadecenoate & MS, LRI & 2281 & 2236 & 14.795 & 0.803 \(\pm\) 0.097 \({}^{\text{a}}\) & 0.358 \(\pm\) 0.176 \({}^{\text{b}}\) \\ EE12 & Ethyl 3-acetoxyoctanoate & MS, LRI & 1897 & 1898 & 13.484 & 2.13 \(\pm\) 0.14 \({}^{\text{b}}\) & 2.94 \(\pm\) 0.35 \({}^{\text{a}}\) \\ EE13 & Ethyl 2-ocenoate & MS, LRI & 1559 & 1557 & 11.992 & 0.395 \(\pm\) 0.013 \({}^{\text{a}}\) & 0.296 \(\pm\) 0.048 \({}^{\text{b}}\) \\ EE14 & Ethyl 4-hexenoate I \(\ddagger\) & MS, LRI & 1300 & 1292 & 10.357 & 0.824 \(\pm\) 0.053 \({}^{\text{b}}\) & 1.001 \(\pm\) 0.079 \({}^{\text{a}}\) \\ EE15 & Ethyl nonanoate & MS, LRI & 1537 & 1535 & 9.558 & 7.98 \(\pm\) 1.64 \({}^{\text{a}}\) & 4.47 \(\pm\) 1.09 \({}^{\text{b}}\) \\ EE16 & Ethyl hexadecanoate & MS, LRI & 2251 & 2241 & 9.538 & 21.3 \(\pm\) 7.26 \({}^{\text{a}}\) & 6.84 \(\pm\) 3.61 \({}^{\text{b}}\) \\ EE17 & Ethyl 9-decenoate isomer II & MS, LRI & 1729 & 1712 & 9.365 & 0.491 \(\pm\) 0.108 \({}^{\text{b}}\) & 1.199 \(\pm\) 0.386 \({}^{\text{a}}\) \\ EE18 & Ethyl 3-hydroxybutyrate & MS, LRI & 1520 & 1524 & 9.214 & 2.48 \(\pm\) 0.20 \({}^{\text{b}}\) & 2.91 \(\pm\) 0.14 \({}^{\text{a}}\) \\ EE19 & Ethyl octadecanoate & MS, LRI & 2463 & 2464 & 8.266 & 0.323 \(\pm\) 0.133 \({}^{\text{a}}\) & 0.086 \(\pm\) 0.052 \({}^{\text{b}}\) \\ EE20 & Ethyl 2-butenoate \(\ddagger\) & MS, LRI & 1153 & 1153 & 8.129 & 41.01 \(\pm\) 1.11 \({}^{\text{b}}\) & 45.86 \(\pm\) 2.73 \({}^{\text{a}}\) \\ EE21 & Ethyl 2-hexenoate II & MS, LRI & 1361 & 1357 & 7.939 & 0.165 \(\pm\) 0.037 \({}^{\text{b}}\) & 0.303 \(\pm\) 0.076 \({}^{\text{a}}\) \\ EE22 & Ethyl butyrate \(\ddagger\) & S, MS, LRI & 1030 & 1030 & 7.670 & 598.6 \(\pm\) 19.5 & 520.3 \(\pm\) 44.9 \\ EE23 & Ethyl & MS, LRI & 1542 & 1547 & 6.118 & 13.95 \(\pm\) 1.38 & 17.16 \(\pm\) 1.78 \\ EE24 & Ethyl heptanoate & MS, LRI & 1340 & 1342 & 5.567 & 8.84 \(\pm\) 0.50 & 6.62 \(\pm\) 1.55 \\ EE25 & Ethyl tetradecanoate & MS, LRI & 2054 & 2054 & 5.553 & 8.30 \(\pm\) 1.91 & 4.17 \(\pm\) 2.36 \\ EE26 & Ethyl hexanoate (mg/L) \(\ddagger\) & S, MS, LRI & 1242 & 1236 & 4.635 & 1.40 \(\pm\) 0.16 & 1.11 \(\pm\) 0.17 \\ EE27 & Ethyl _trans_-2-butenoate & MS, LRI & 1160 & 1158 & 3.651 & 19.35 \(\pm\) 0.72 & 18.27 \(\pm\) 0.67 \\ EE28 & Ethyl undecanoate & MS, LRI & 1747 & 1739 & 2.757 & 0.551 \(\pm\) 0.111 & 0.434 \(\pm\) 0.052 \\ EE29 & Ethyl 2-hexenoate I & MS, LRI & 1350 & 1357 & 2.422 & 14.68 \(\pm\) 0.76 & 16.94 \(\pm\) 2.40 \\ EE30 & Ethyl _cis_-3-hexenoate & MS, LRI & 1307 & 1295 & 1.848 & 4.11 \(\pm\) 0.79 & 4.76 \(\pm\) 0.25 \\ EE31 & Ethyl dodecanoate \(\ddagger\) & S, MS, LRI & 1843 & 1843 & 1.536 & 1.23 \(\pm\) 0.37 & 0.88 \(\pm\) 0.33 \\ EE32 & Ethyl _trans_-4-decenoate & MS, LRI & 1672 & 1680 & 0.798 & 0.305 \(\pm\) 0.064 & 0.443 \(\pm\)  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Co.** & **Volatile Aroma Compound** & **ID** & **LRIexp** & **LRIlit** & **F-Ratio** & \multicolumn{2}{c}{**Treatment**} \\ \hline  & & & & & & **SCE** & **LEV** \\ \hline AE7 & _trans,trans-_2,4-Octadienyl & MS & 1570 & - & 34.005 & 0.262 \(\pm\) 0.026 \({}^{\rm a}\) & 0.134 \(\pm\) 0.028 \({}^{\rm b}\) \\ AE8 & Isopropyl acetate \(\ddagger\) & MS, LRI & \(<\)1000 & 901 & 18.565 & 72.67 \(\pm\) 2.89 \({}^{\rm a}\) & 61.17 \(\pm\) 3.61 \({}^{\rm b}\) \\ AE9 & Octyl acetate \(\ddagger\) & MS, LRI & 1481 & 1483 & 18.052 & 7.88 \(\pm\) 1.40 \({}^{\rm a}\) & 3.47 \(\pm\) 1.13 \({}^{\rm b}\) \\ AE10 & _cis_-6-Nonen-1-yl acetate & MS, LRI & 1634 & 1634 & 14.909 & 0.852 \(\pm\) 0.299 \({}^{\rm a}\) & 0.183 \(\pm\) 0.021 \({}^{\rm b}\) \\ AE11 & Propy acetate & MS, LRI & \(<\)1100 & 982 & 11.483 & 43.93 \(\pm\) 0.45 \({}^{\rm a}\) & 28.59 \(\pm\) 7.83 \({}^{\rm b}\) \\ AE12 & Ethyl acetate (mg/L) \(\circ\) & S, MS, LRI & \(<\)1100 & 890 & 10.734 & 26.33 \(\pm\) 3.53 \({}^{\rm b}\) & 50.33 \(\pm\) 12.19 \({}^{\rm a}\) \\ AE13 & 2-Phenethyl acetate \(\ddagger\) & S, MS, LRI & 1803 & 1801 & 10.173 & 455.0 \(\pm\) 47.7 \({}^{\rm a}\) & 360.2 \(\pm\) 19.3 \({}^{\rm b}\) \\ AE14 & 3-Methylheptyl acetate & MS, LRI & 1385 & 1395 & 8.379 & 0.852 \(\pm\) 0.113 \({}^{\rm b}\) & 1.858 \(\pm\) 0.591 \({}^{\rm a}\) \\ AE15 & Pentyl acetate & MS, LRI & 1169 & 1185 & 6.820 & 8.29 \(\pm\) 0.69 & 10.30 \(\pm\) 1.13 \({}^{\rm b}\) \\ AE16 & _cis_-3-Hexenyl acetate & MS, LRI & 1314 & 1308 & 3.529 & 268.2 \(\pm\) 5.8 & 231.2 \(\pm\) 33.5 \\ AE17 & Methyl acetate \(\ddagger\) & MS, LRI & \(<\)1000 & 813 & 2.736 & 22.40 \(\pm\) 0.83 & 20.75 \(\pm\) 1.51 \\ AE18 & 1,3 Buttenediol diacetate & MS, LRI & 1785 & 1768 & 1.349 & 3.71 \(\pm\) 4.24 & 0.87 \(\pm\) 0.07 \\ AE19 & Heptepyl acetate & MS & 1408 & - & 1.166 & 0.740 \(\pm\) 0.242 & 0.530 \(\pm\) 0.234 \\ AE20 & Hexyl acetate \(\ddagger\) & S, MS, LRI & 1272 & 1272 & 0.047 & 436.9 \(\pm\) 138.4 & 455.8 \(\pm\) 60.3 \\ \multicolumn{7}{c}{_Other esters_} \\ OE1 & Propyl hexanoate & MS, LRI & 1324 & 1319 & 92.313 & 3.04 \(\pm\) 0.13 \({}^{\rm a}\) & 1.51 \(\pm\) 0.24 \({}^{\rm b}\) \\ OE2 & Phenylethyl isobutyrate & MS, LRI & 1888 & 1896 & 91.705 & 1.04 \(\pm\) 0.07 \({}^{\rm a}\) & 0.43 \(\pm\) 0.08 \({}^{\rm b}\) \\ OE3 & Pyruvic acid ester n.i.