## 2 Results
### Content of Other Esters and Aldehydes along Ripening in Italia and Bronx Seedless Table Grapes  
Table 7 shows the content of esters and aldehydes of Italia and Bronx Seedless table grapes obtained in the six phenological stages of vine ripening. The most abundant esters found in Italia and Bronx Seedless grapes were ethyl-3-hydroxybutyrate, ethyl octanoate and ethyl heptanoate, whereas the most abundant aldehydes in the studied grapes were benzaldehyde, nonanal and octanal. The variety factor significantly affected the contents of 3-methyl-butanal, pentanal, octanal and nonanal, whereas the phenological factor affected the contents of most of the esters and aldehydes presented in Table 6, except 3-methyl-butanal and benzaldehyde. None of the esters and aldehydes presented in Table 7 were affected by the interaction between variety and phenological stage factors. Italia grapes presented lower contents of 3-methylbutanal, pentanal, octanal and nonanal than Bronx Seedless grapes. Grapes harvested at the BBCH-89 stage presented a higher ethyl octanoate content than the grapes harvested in the rest of the phenological stages. In addition, grapes harvested at the BBCH-77 stage presented lower contents of the esters and aldehydes presented in Table 7 than the grapes harvested at the BBCH-89 stage. \begin{table}
\begin{tabular}{l c c c c c c c c c} \hline  & **Ethyl** & **Ethyl** & **Ethyl** & **Propyl** & **Ethyl 3-** & **Butyl** & **Ethyl 1-** & **Ethyl** & **Hexanol** & **Acetate** \\  & **Acetate** & **Propionate** & **Isobutyrate** & **Acetate** & **Bulyrate** & **Methylbutanoate** & **Acetate** & **Pentanoate** & **Hexanoate** & **Acetate** \\ \hline
**Variety (V)** & & & & & & & & & & \\ Italia & 25.44 b & 23.77 a & 26.32 b & 26.84 a & 35.93 a & 22.68 a & 13.00 b & 23.73 a & 10.88 b & 24.70 a \\ Bronx Seedless & 16.99 a & 22.85 a & 20.36 a & 31.19 a & 34.14 a & 21.16 a & 10.47 a & 22.26 a & 8.33 a & 22.54 a \\ \multicolumn{7}{l}{**Phenological stage (S)**} \\ BCH-77 & 15.22 a & 17.59 a & 16.74 a & 21.89 a & 26.43 a & 10.90 a & 20.04 c & 17.35 a & 7.25 a & 17.82 a \\ BCH-79 & 17.73 a & 19.56 a & 18.95 a & 24.35 b & 29.39 a & 19.29 a & 8.06 b & 19.29 a & 8.06 ab & 19.81 ab \\ BCH-81 & 19.50 b & 21.75 b & 21.45 ab & 27.07 ab & 32.69 abc & 21.45 b & 8.96 a & 21.45 b & 22.03 abc \\ BCH-83 & 22.07 c & 24.18 d & 22.28 b & 30.10 a & 36.35 b & 23.85 b & 9.97 ab & 23.68 abc & 9.97 abc & 24.50 abc \\ BCH-85 & 24.99 d & 26.89 d & 27.49 d & 33.47 b & 40.42 d & 26.53 d & 11.08 ab & 26.53 bc & 11.08 bc & 27.24 b \\ BCH-89 & 28.25 e & 29.90 e & 31.17 d & 37.22 c & 44.94 d & 29.50 d & 12.32 b & 29.50 c & 12.32 c & 30.30 c \\
**Significance** * & & & & & & & & & \\ V & 0.0000 & 0.3900 & 0.0003 & 0.1025 & 0.4021 & 0.3856 & 0.0071 & 0.4225 & 0.0360 & 0.3475 \\ S & 0.0000 & 0.0000 & 0.0000 & 0.0197 & 0.0003 & 0.0000 & 0.0000 & 0.0067 & 0.0106 & 0.0367 \\ \(\times\) S & 0.2222 & 1.0000 & 0.9740 & 0.9998 & 1.0000 & 1.0000 & 0.9967 & 1.0000 & 0.9965 & 1.0000 \\ \hline \end{tabular} Data are expressed as mean of the data. \({}^{\rm a}\) Significance (\(p\)-value) of variety (V), phenological stage (S), and V \(\times\) S interactions. For a given factor and significance (\(p\) < 0.05), different letters within a column represent significant differences (Duncan test, \(p\) < 0.05).  
\end{table} 
Table 6: Esters content (\(\rm{ug}\) L\({}^{-1}\)) of Italia and Bronx Seedless table grapes harvested in six different phenological stages (BBCH-77, BBCH-79, BBCH-81, BBCH-83, BBCH-85 and BBCH-89).