Experimental
2.1 Chemicals
1. Standard of citronellal, citronellol, citral, geraniol,and eugenol
2. Methyl decanoate
3. Hexane
2.2 GC-FID system
The quantitative determination of investigated VACs was performed with a gas chomatograph, equipped with a flame ionization detector and with VwrtiBond 5 ms capillary column Thermo Finnigan, Itaiy. The optimum conditions used throyghout were shown in Table 1.