# Cellulose as a Delivery System of Raspberry Juice Volatiles and Their Stability
## 2 Results
### Evaluation of Volatiles
Prolonged complexation had a high effect on adsorption of 2-hexenal and the highest amount (1.53 ug/kg) of this volatile was determined in complexes prepared with 2.5% of cellulose. 2-Nonenal was determined in the highest amount with 7.5% of cellulose (4.01 ug/kg), and ethyl benzaldehyde and hexyl cinnamaldehyde (5.25 ug/kg and 3.10 ug/kg, respectively) with 10% of cellulose prepared by 15 min of complexation. Figure 2: Amount of volatiles of specific chemical group in juice and on cellulose/raspberry complexes after 60 min of complexation and after storage (2.5%, 5%, 7.5% and 10%—amounts of used cellulose; 60—time of complexation; S—storage. \begin{table}
\begin{tabular}{c c c c c c c c} \hline
**Juice** & **Complex \({}^{*}\)** & **RT (min) \({}^{1}\)** & **RI \({}^{2}\)** & **MW \({}^{3}\)** & **log P (o/w) \({}^{4}\)** & **Vapor Pressure (mm/Hg)** & **Odor Description** \\ \hline
2-hexanal & + & 7.4716 & 851 & 98.14 & 1.79 & 4.62 & green \\ hexanal & - & 8.5358 & 866 & 102.18 & 2.03 & 0.947 & green \\ benzaldehyde & + & 14.8880 & 955 & 106.124 & 1.480 & 1.27 & fruity \\ \(\beta\)-myrene & - & 17.1068 & 987 & 136.238 & 4.17 & 2.29 & woody \\ octanal & + & 18.0072 & 998 & 128.22 & 2.951 & 2.068 & green \\ hexanoic acid & - & 18.7302 & 1009 & 116.16 & 1.920 & 0.158 & fruity \\ limonen & + & 19.3232 & 1018 & 136.238 & 4.57 & 0.198 & citrus \\ \(2\)-ethyl hexanol & + & 19.8268 & 1029 & 130.231 & 2.82 & 0.207 & fruity \\ benzyl alcohol & - & 20.1599 & 1035 & 108.139 & 1.100 & 0.094 & fruity \\ \(\gamma\)-terpinene & - & 21.1997 & 1051 & 136.238 & 4.5 & 1.075 & citrus \\ \(1\)-phenylethane & + & 21.6789 & 1057 & 120.151 & 1.58 & 0.397 & fruity \\ linalool oxide & + & 22.0851 & 1065 & 170.252 & 1.375 & 0.002 & floral \\ octanol & - & 22.2638 & 1071 & 130.23 & 3.0 & 0.079 & green \\ - & guaisol & 23.13329 & 1080 & 124.139 & 1.32 & 0.179 & woody \\ \(\alpha\)-terpinolene & + & 23.8974 & 1094 & 136.238 & 4.470 & 1.126 & woody \\ linalool & + & 23.8884 & 1096 & 154.252 & 2.970 & 0.016 & citrus \\ nonanal & + & 24.1158 & 1095 & 142.242 & 3.461 & 0.532 & citrus \\ ethyl hexanoic & + & 25.8217 & 1128 & 144.214 & 2.640 & 0.03 & no flavor \\ acid & - & 27.0726 & 1155 & 140.226 & 3.319 & 0.256 & green \\  & - & menthol & 27.6494 & 1167 & 156.27 & 3.216 & 0.032 & green \\ \(\alpha\)-terpinol & + & 28.4620 & 1180 & 154.253 & 2.67 & 0.028 & woody \\ myrtenol & + & 28.7553 & 1185 & 152.24 & 3.22 & 0.018 & green \\ decanal & + & 29.4771 & 1200 & 156.269 & 3.97 & 0.207 & floral \\ ethyl & & benzaldehyde & 29.672 & 1201 & 134.178 & 2.408 & 0.106 & fruity \\ \(\beta\)-cyclodextrin & - & 29.9239 & 1207 & 152.237 & 3.10 & 0.176 & herbal \\ nerol & + & 30.5818 & 1218 & 154.253 & 3.47 & 0.013 & citrus \\ geraniol & + & 31.9384 & 1247 & 154.253 & 3.56 & 0.021 & floral \\ \(\alpha\)-propyl & + & 32.4908 & 1261 & 148.20 & 2.918 & 0.039 & no flavor \\ benzaldehyde & - & 32.7283 & 1265 & 192.302 & 3.62 & 0.022 & floral \\ - & decanol & 32.7995 & 1265 & 158.28 & 4.570 & 0.008510 & fruity \\ - & nonanoic acid & 33.5062 & 1277 & 158.23 & 3.42 & 0.009 & waxy \\ \hline \end{tabular}
\end{table} 
Table 1: Volatile compounds detected in raspberry juice and cellulose/rasberry complexes.