To accelerate wine maturation, low frequency ultrasonic waves of 28 kHz and 45 kHz were used to treat
the steeped greengage wine. The contents of total acid, total ester, fusel oils and the wine chromaticity
were determined before and after the ultrasonic treatment. The volatile compounds were analysed by
GC–MS method, and the sensory quality was evaluated by panelist. The results indicated that ultrasonic
treatment of the steeped greengage wine at 45 kHz 360 W for 30 min was effective to accelerate the aging
process, where the fusel oils and alcohol compounds were significantly reduced and acid and ester compounds were significantly increased