Intensification of extraction of curcumin from Curcuma amada using ultrasound assisted approach: Effect of different operating parameters

Abstract

Curcumin, a dietary phytochemical, has been extracted from rhizomes of Curcuma amada using ultrasound assisted extraction (UAE) and the results compared with the conventional extraction approach to establish the process intensification benefits. The effect of operating parameters such as type of solvent, extraction time, extraction temperature, solid to solvent ratio, particle size and ultrasonic power on the extraction yield have been investigated in details for the approach UAE. The maximum extraction yield as 72% was obtained in 1h under optimized conditions of 35°C temperature, solid to solvent ratio of 1:25, particle size of 0.09mm, ultrasonic power of 250W and ultrasound frequency of 22kHz with ethanol as the solvent. The obtained yield was significantly higher as compared to the batch extraction where only about 62% yield was achieved in 8h of treatment. Peleg's model was used to describe the kinetics of UAE and the model showed a good agreement with the experimental results. Overall, ultrasound has been established to be a green process for extraction of curcumin with benefits of reduction in time as compared to batch extraction and the operating temperature as compared to Soxhlet extraction.

Ultrasound‐Assisted Extraction of Cannabinoids from Cannabis Sativa L. Optimized by Response Surface Methodology

“…More methanol content in the extraction solvent favouring TPC extraction could be attributed to the altered polarity of the alcohol‐water mixture, which has also been reported previously (Muniz‐Marquez et al., ). Polar solvents increase the permeability of the cell wall thereby enhancing the extraction (Shirsath et al., ). It is worth noting that power itself does not significantly affect TPC, which has also been observed earlier (Tomsik et al., ).…”

“…As for the effect of power, the yield of some phenolic compounds has been shown to increase as a function of power while the opposite occurs for the rest (Ma, Chen, Liu, & Ye, ). Improved extraction yield obtained at higher ultrasonic power is due to the enhanced physical effects such as cracked cell walls, interfacial turbulence, solute diffusion and energy dissipation, which are caused by larger amplitude of ultrasound waves travelling through the solvent medium giving rise to intense collapse of the cavitation bubbles (Shirsath et al., ). On the contrary, high acoustic power increases the dissipation of heat in the medium, which may reduce the yield due to the degradation of heat sensitive compounds (Purohit & Gogate, ).…”

Optimization of ultrasound and microwave assisted oil extraction from sea buckthorn seeds by response surface methodology

“…Also it is reproducible and could be used to recover many compounds contained in the vegetal matrices (Altemimi, Watson, Choudhary, Dasari, & Lightfoot, ; Chanioti & Tzia, ; Clodoveo, Durante, La Notte, Punzi, & Gambacorta, ; Goldsmith, Vuong, Stathopoulos, Roach, & Scarlett, ; Nour, Trandafir, & Cosmulescu, ; Perrier et al, ; Zhao, Liu, Wang, & Ma, ). Combining several mechanisms such as erosion, shear forces, sonoporation, fragmentation, capillary effect, and detexturation, resulting in a gradual physical damage of the plant material, UAE technique eventually improves solvent penetration to inner structures (Chemat et al, ; Esclapez, García‐Pérez, Mulet, & Cárcel, ; Khadhraoui et al, ; Shirsath et al, ). Simultaneously, contained components, that is, bioactive molecules or lipid deposits are expelled from plant structures and forced to migrate to the surrounding media (solvent), thus leading to higher extraction yields within short exposure time.…”

Specific Energy: A New Approach to Ultrasound-assisted Extraction of Natural Colorants

“…According to Mamvura, Iyuke and Paterson [57], an energy conversion from electrical to cavitation of 9% was achieved. Shirsath, Sable, Gaikwad, Sonawane, Saini and Gogate [36] also verified through a calorimetric method that the energy efficiency of the process was approximately 5.6%. Because of that, most authors have used the highest nominal power of the equipment to do the extractions [37].…”