# Watermelon Rind and Flesh Volatile Profiles and Cultivar Difference
## 3 Results
### Watermelon Flesh Major Volatiles and Cultivar Difference  
Among 132 volatiles identified in eight samples, analysis recovered 114 volatile compounds from each of the Captivation, Exclamation, Excursion, and Fascination flesh samples (Table 1). There were 97 volatiles found in common between all cultivars of watermelon flesh, while 17 volatiles only occurred in certain varieties. The dominant volatiles (at least 2% peak area in all samples) being known watermelon flavor compounds including hexanal (12.7-15.1%), (E)-2-nonenal (7.4-13.0%), (Z)-3-nonen-1-ol (8.1-12.3%), 6-methyl-5-hepten-2-one (6.4-8.4%), (E,Z)-2,6-nonadien (5.3-9.8%), (Z)-6-nonenal (2.1-6.6%), nonanal (4.4-6.0%), (Z,Z)-3,6-nonadien-1-ol (3.4-6.0%), hexanol (3.6-5.8%), and (E)-2-ocrenal (2.2-2.9%). The abundance of those volatiles differed significantly (\(p\leq 0.05\)) between cultivars. Excursion had the lowest abundance of hexanal, 6-methyl-5-hepten-2-one and nonanal, while Exclamation and Captivation had the greatest of those. Fascination had the lowest abundance of (Z)-6-nonenal, (E,Z)-2,6-nonadien, and (Z,Z)-3,6-nonadien-1-ol, while Excursion had the greatest abundance of the former two. Captivation had the greatest abundance of the latter. Captivation had the lowest abundance of (E)-2-nonenal and (Z)-3-nonen-1-ol, while Fascination had the greatest abundance of those. \begin{table}
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\begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**V**} & **IBI** & \multirow{2}{*}{**Compounds**} & **CA546** & \multicolumn{4}{c}{**Variations  
There were 17 volatiles that were not present in all tested cultivars, four of which were exclusive to specific cultivars including estragole (0.02%) present only in Captivation, 3-pentanol (0.01%) and \(\alpha\)-terpineol (<0.01%) in Exclamation, and (\(E\),\(Z\))-3,5-ocatadien-2-one (0.05%) in Fascination. Of those volatiles, 3-pentanol and (\(E\),\(Z\))-3,5-ocatadien-2-one have never been reported in watermelon.