The alcohol group was the biggest class in terms of its relative peak area (RPA) which made up almost half of the juice volatiles RPA (49.39%) and more than three quarters of wine volatiles RPA (78.43%) (Table 1). (Z)-3-Hexen-1-ol, hexan-1-ol and ethanol were the main alcohols by RPA in mangosteen juice; the former two volatiles, which impart green, grassy and slightly fruity odours, were detected as the main volatiles in mangosteen juice before (Macleod and Pieris, 1982; Laohakunjit et al., 2007). However, almost all of the (Z)-3-hexen-1-ol and hexan-1-ol were depleted after fermentation; some of them could have been converted into eters.