Curcumin is the main active ingredient in turmeric rhizome, with various biological activities such as antioxidant and anti-inflammatory. However, it only accounts for about 3 wt% in dried rhizome, so efficient extraction technology is crucial. The traditional extraction method is time-consuming and inefficient, while ultrasound assisted extraction utilizes cavitation effect to destroy plant cell structure and promote the dissolution of target components, becoming a green and efficient alternative solution.

(UAE)ultrasound assisted extraction of curcumin is an efficient and environmentally friendly method for extracting curcumin from turmeric, which significantly improves extraction efficiency and reduces energy consumption compared to traditional methods. The optimal process usually involves optimizing parameters such as solvent concentration, temperature, ultrasound power, and time.
Extraction conditions and optimization of ultrasound assisted extraction of curcumin
Research has shown that multiple factors significantly affect the ultrasound extraction efficiency of curcumin:
Solvent system of ultrasound assisted extraction of curcumin: 65% ethanol aqueous solution is widely used as an extraction solvent due to its good solubility in curcumin and environmental friendliness.
Temperature of ultrasound assisted extraction of curcumin: Research has shown that increasing the temperature appropriately within the range of 293-353 K (i.e. 20-80 ° C) can help improve the extraction rate.
Ultrasonic intensity and frequency: Ultrasonic intensity (0.05-0.45 W/cm ²) can increase the apparent diffusion coefficient by 17.3% -38.5%;
The frequency (28-135 kHz) also significantly affects the extraction kinetics, with 40 kHz commonly used for practical operations.
Extraction time: Generally, a high extraction rate can be achieved within 30-60 minutes, which is much shorter than traditional reflux extraction

ultrasonic tincture soxhlet extraction system machine with solvent recovery