## 3 Results and Discussion
### Physicochemical and Chemical Characterization of Juices
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Peak Number** & **Identification** & \
\begin{tabular}{c} **Matrix** \\ **(A/J)** \\ \end{tabular} & **Aromatic Note** & **LRI Calc.** &
\begin{tabular}{c} **LRI** \\ **Litt.** \\ \end{tabular} & **Reference** \\ \hline \hline \multicolumn{7}{c}{Aldehydes} \\ \hline
1 & Hexanal & A, J & Herbal & 1078 & 1078 & [21] \\
2 & Heptanal & A, J & Herbal & 1185 & 1187 & [21] \\
3 & 2-Hexenal & A, J & Apple, green & 1219 & 1220 & [21] \\
4 & Octanal & A, J & Aldehyde & 1286 & 1294 & [37] \\
5 & 2-Heptenal & A, J & Green & 1320 & 1336 & [38] \\
6 & Nonanal & A, J & Aldehyde & 1390 & 1390 & [21] \\
7 & 2-Octenal & A, J & Green & 1426 & 1438 & [37] \\
8 & Furfurral & J & Bready, caramel & 1467 & 1475 & [39] \\
9 & Decanal & A, J & Orange peel & 1494 & 1492 & [21] \\
10 & Benzaldehyde & A, J & Fruity, almond & 1524 & 1524 & [21] \\
11 & 2-Nonenal & A, J & Green & 1534 & 1546 & [37] \\
12 & Benzeneacetaldehyde & A, J & Green, honey & 1653 & 1630 & [40] \\
13 & 2,4-Decadienal & J & Orange, sweet & 1812 & 1758 & [41] \\
14 & 2,5-Dimethylbenzaldehyde & J & & 1873 & & \\ \hline \multicolumn{7}{c}{Esters} \\ \hline
15 & Isobutyl acetate & A, J & Sweet, fruity & 1012 & 1005 & [42] \\
16 & Butyl acetate & J & Ethereal & 1077 & 1105 & [42] \\
17 & Isoamyl acetate & A, J & Fruity, banana & 1118 & 1113 & [21] \\
18 & Amyl acetate & J & Ethereal & 1173 & 1176 & [43] \\
19 & Prenyl acetate & J & Sweet, fresh, & 1244 & 1248 & [43] \\
20 & (E)-2-Methyl-2-butenyl acetate & A, J & & 1248 & 1250 & [43] \\
21 & Amylbutyrate & A & Sweet, fruity & 1264 & & \\
22 & Hexyl acetate & A, J & Fruit, herb & 1270 & 1270 & [21] \\
23 & 3-Hexenyl acetate & J & Green, fruity, & 1313 & 1313 & [44] \\
24 & 2-Hexenyl acetate & A & Green, fruity, & 1332 & 1329 & [20] \\
25 & Butylcaroate & A, J & pineapple, & 1408 & 1407 & [21] \\  & & & apple & & \\
26 & Hexylbutyrate & A, J & Green & 1410 & 1411 & [21] \\
27 & Hexyl n-valerate & A, J & Fruity & 1419 & & \\
28 & Isoamylcaroate & A, J & Fruity & 1453 & 1454 & [21] \\
29 & 2-Hexenyl butyrate & A, J & Green, fruity, & 1471 & 1460 & [43] \\  & & & apricot & & \\  & cis-3-Hexenyl & A & Fresh, green, & 1475 & 1472 & [43] \\
30 & 2-methylbutyrate & A & apple & & \\
31 & Pentylhexanoate & A, J & Sweet, fruity & 1506 & 1505 & [43] \\
32 & Isobutylocanoate & A & Fruity, green & 1548 & 1550 & [43] \\
33 & Prenylcaroate & A & Cheesy & 1577 & 1572 & [43] \\
34 & Hexylcaroate & A & Green & 1603 & 1606 & [21] \\
35 & Butylcaryplate & A, J & Buttery & 1607 & 1613 & [43] \\
36 & Ethylcacoate & J & Sweet, waxy & 1631 & 1645 & [39] \\
37 & 2-Methylbutyl ocanoate & A & & 1668 & 1657 & [43] \\
38 & (E)-2-Hexenyl hexanoate & A & Green, cognac & 1665 & 1660 & [43] \\
39 & Phenylmethyl acetate & A, J & Sweet, floral & 1763 & 1754 & [44] \\
40 & Hexylcaryplate & A, J & Green & 1801 & 1803 & [21] \\ \hline \multicolumn{7}{c}{Alcohols} \\ \hline
41 & Butanol & A, J & Fruity, wine & 1140 & 1141 & [21] \\
42 & Isoamylalcohol & A, J & Alcoholic, & 1205 & 1221 & [21] \\
43 & Prenol/2-Heptanol & J & Fruity/fresh & 1317 & 1316 & [43] \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Volatile compounds of apple fruit and juice with the corresponding aromatic notes, calculated and tabulated LRIs, and references. Figure 1: Viscosity values determined in apple juice samples. The means with different letters are significantly different (\(p<0.05\)); stars indicate variable influence and strong interaction among considered factors. \begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Compounds**} & \multicolumn{4}{c}{**Calote Delicious**} & \multicolumn{4}{c}{**Pinova**} & \multicolumn{4}{c}{**Red Delicious.