The use of ultrasonic irradiation resulted in
intensification
of the extraction operation of vanillin significantly as confirmed from the results that in soxhlet extraction, an operating temperature of 95 C and solvent to solute proportion of 66.67 ml/g
(most commonly used conditions) resulted in release of around 180 ppm in 8 h whereas ultrasonic
assisted extraction required only 1 h for release of around 140 ppm vanillin concentration at similar proportions
of solvent to solute and under ambient operating temperature.