## 3 Results
### Volatile Compounds Detection Using GC-MS
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**No.**} & \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**RI**} & \multirow{2}{*}{**Method of**} & \multirow{2}{*}{**Class**} & \multirow{2}{*}{**Quantitative**} & \multirow{2}{*}{**Aroma Description**} & \multirow{2}{*}{**Order**} \\  & & & & & & & **(ng/L)** \\ \hline
1 & ethyl acetate & 8/78 & MS, RI & Ester & 43 & sweet, etheric, fruity, grape, rum & 5000 \\
2 & ethyl propionate & 958 & MS, RI & Ester & 75 & sweet, fruity, grape, ether, rum, pineapple & 10 \\
3 & n-propyl acetate & 974 & MS, RI & Ester & 43 & pleasant, solvent, sweet fruit & 150,000 \\
4 & isobutyl acetate & 1012 & MS, RI & Ester & 43 & sweet, apple, banana, fruity & 66 \\
5 & isomiy acetate & 1110 & MS, RI & Ester & 43 & sweet, pcar, banana, fruity & — \\
6 & 1,2-propanediol,2-acetate & 1621 & MS, RI & Ester & 43 & — & — \\
7 & trimethylene acetate & 1665 & MS, RI & Ester & 43 & — & 11 \\
8 & ethyl benzoate & 1681 & MS, RI & Ester & 105 & sweet, fruity, fragrant & 60 \\
9 & diethyl succinate & 1680 & MS, RI & Ester & 101 & weak pleasing aroma & 2000 \\
10 & ethyl phenylacetate & 1770 & MS, RI & Ester & 91 & sweet, fruity, coco, floral scant, & 650 \\
11 & \(\beta\)-phenyl acetate & 1788 & MS, RI & Ester & 104 & sweet, green, floral, fruity, citrus, honey & 3900 \\
12 & 3-methylbutyrate & 924 & MS, RI & Aldehyde & 44 & apple, chocolate, cocoa & — \\
13 & nonanal & 1386 & MS, RI & Aldehyde & 57 & fat, floral, wavy, citrus & 1 \\
14 & benzaldehyde & 1520 & MS, RI & Aldehyde & 77 & almonds, cherries, nuts, woody & 3500 \\
15 & phenylethanal & 1638 & MS, RI & Aldehyde & 91 & green, earthly, chocolate & 4 \\
16 & 1H-pyrrole-2-carbaldehyde & 2009 & MS, RI & Aldehyde & 95 & — \\
17 & 5-methyl-2-phenyl-2-hexneal & 2060 & MS, RI & Aldehyde & 117 & bitter cocoa, nuts, honey, baking and & — \\
18 & 1-methylpyrrole-2-carboxaldehyde & 2009 & MS, RI & Aldehyde & 95 & — \\
19 & acetic acid & 1449 & MS, RI & Acid & 60 & strong sour taste & 2200 \\
20 & propionic acid & 1522 & MS, RI & Acid & 74 & spicy and sour & 20,000 \\
21 & bytytric acid & 1620 & MS, RI & Acid & 60 & cheese, milk, cern, fruity & 240 \\
22 & isovaleric acid & 1680 & MS, RI & Acid & 60 & cheese, products, fruity & 700 \\
23 & 2-methylbutyrate acid & 1685 & MS, RI & Acid & 74 & pungent and spicy Roqufort & 20 \\
24 & captoric acid & 1880 & MS, RI & Acid & 60 & green, woody, grassy, vegetable, & 3000 \\
25 & octanoic acid & 2100 & MS, RI & Acid & 60 & — & sweet & 3000 \\
26 & 3-methyl-1-butanol & 1185 & MS, RI & Alcohol & 55 & apple, banana, whiskey & 30,000 \\
27 & 2,3-butanediol & 1584 & MS, RI & Alcohol & 45 & sweet, butter, butter & 100,000 \\
28 & phenylethol & 1890 & MS, RI & Alcohol & 91 & sweet, green, floral, fresh bread aroma & 750 \\
29 & 3-hydroxy-2-butonon & 1270 & MS, RI & Ketone & 45 & — & 140 \\
30 & acetophenone & 1656 & MS, RI & Ketone & 105 & cream, fat & 65 \\
31 & 2-pyrrolidinione & 2037 & MS, RI & Ketone & 42 & strong medicinal, diamond & — \\
32 & guaioal & 1862 & MS, RI & Phenol & 109 & smoked, spicy, fragment, meaty, woody & 21 \\
33 & 2-ethyl-3-hydroxy-H-pyran-t-one & 2052 & MS, RI & Phenol & 140 & fruity, caramel & — \\
34 & 4-ethyl-2-methoxyphenol & 2031 & MS, RI & Phenol & 137 & sweet, spicy, herbal & — \\
35 & 4-ethylphenol & 2199 & MS, RI & Phenol & 107 & strong phenolic smell, slightly & — \\
36 & furufural & 1462 & MS, RI & Furan & 96 & sweet aroma & 3000 \\
37 & acetylfuran & 1508 & MS, RI & Furan & 95 & baked license, smoky & 10,000 \\
38 & furufufy acetate & 1525 & MS, RI & Furan & 81 & ester, floral & — \\
39 & 1-pentanone, 1-(2-furanyl)- & 1563 & MS, RI & Furan & 95 & — & 6 \\
40 & 3-furanethanol & 1679 & MS, RI & Furan & 98 & caramel & — \\
41 & 1-(5-methyl-2-furufy)[ethan-1-tone & 1606 & MS, RI & Furan & 109 & biscuits, roasted almonds & — \\
42 & 4-(2-furufy)-3-buten-2-one & 1879 & MS, RI & Furan & 121 & sweet, powder, unity, creamy, & \\  & & & & & & & woody cinnamon & — \\ \hline \hline \end{tabular}
\end{table}