@article {47670,
	title = {Ultrasound assisted curcumin recovery from Curcuma aromatica: understanding the effect of different operating parameters},
	journal = {Chemical Engineering and Processing-Process Intensification},
	volume = {169},
	year = {2021},
	month = {DEC},
	pages = {108604},
	type = {Article},
	abstract = {The present study deals with intensified extraction of curcumin from Curcuma aromatica by employing ultrasound-assisted extraction (UAE) approach also elucidating comparison with the conventional batch extraction to highlight the intensification benefits based on the usage of ultrasound. Understanding into the effect of operational parameters like type of solvent, extraction temperature, solid to solvent ratio and raw material size distribution as well as the equipment operating conditions as frequency and power on the extraction yield has been developed. Based on the results for extraction yield, the optimum conditions for UAE approach were 40 degrees C as temperature, 1:30 as solid to solvent ratio, 0.09 mm as the mean particle size, 240 W as ultrasonic power, 22 kHz as ultrasonic frequency and ethanol as the most suitable solvent. Under these optimum conditions, the highest extraction yield of 73.18\% was achieved in 2 h whereas batch extraction for 14 h resulted in 52.31\% yield clearly demonstrating the intensification due to ultrasound. Peleg{\textquoteright}s model was applied to explain the extraction kinetics of curcumin and the proposed model satisfactorily predicted the rates of extraction of cur cumin. Overall, UAE proved to be a better technique in terms of lesser time, lesser heating requirement and additional extraction yield.},
	keywords = {Cavitation, Curcuma aromatica, curcumin, Intensification, Kinetic modelling, Ultrasound assisted extraction},
	issn = {0255-2701},
	doi = {10.1016/j.cep.2021.108604},
	author = {Shirsath, Sachin R. and Sable, Sunil S. and Gaikwad, Shashank G. and Gogate, Parag R.}
}
@article {49524,
	title = {Ultrasound emulsification: effect of additives on dispersed phase volume and droplet size},
	journal = {Industrial \& Engineering Chemistry Research},
	volume = {64},
	year = {2025},
	month = {JAN},
	pages = {3409-3425},
	type = {Article},
	abstract = {<p>
	Ultrasonic emulsification of oil and water was carried out to observe the effect of addition of a minimal amount of surfactant. The effect of ultrasound irradiation time, power, and physicochemical properties of oil on the dispersed phase volume and dispersed phase droplet size has been studied. The increase in the irradiation time increases the dispersed phase volume, while it decreases the dispersed phase droplets size. With an increase in the ultrasonic irradiation power, there is an increase in the fraction of volume of the dispersed phase, while the droplet size of the dispersed phase decreases over the same irradiation time. The fractional volume of the dispersed phase is higher for the case of the groundnut oil-water system, while it is low for the paraffin (heavy) oil-water system. The droplet size of soyabean oil dispersed in water is found to be small, while that of paraffin (heavy) oil is found to be large. These variations could be explained on the basis of varying physicochemical properties of the system, i.e., viscosity of oil and the interfacial tension. During the ultrasonic emulsification, a coalescence phenomenon which is relatively weak has also been observed, which can be attributed to the collision of small droplets when the droplet concentration increases (higher dispersed phase hold-up) and the acoustic streaming strength is higher.</p>
},
	issn = {0888-5885},
	doi = {10.1021/acs.iecr.4c02452},
	author = {Gaikwad, Shashank G. and Pandit, Aniruddha B.}
}
