MYCOLab Ai Logo - gold and army green

Ultrasound-Assisted Determination of Selenium in Organic Rice Using Deep Eutectic Solvents Coupled with Inductively Coupled Plasma Mass Spectrometry

Summary

This study developed environmentally friendly solvents called deep eutectic solvents (DESs) to detect selenium in rice without using toxic chemicals. Researchers optimized four different DES formulations and used ultrasonic waves to extract selenium from rice samples. The new green chemistry approach achieved comparable or better results than traditional harsh acid digestion methods while being safer for the environment.

Background

Selenium is an essential trace element for human health with antioxidant and anti-aging properties. Traditional selenium detection methods rely on harsh inorganic reagents that contradict green chemistry principles. Deep eutectic solvents (DESs) offer a biodegradable, environmentally friendly alternative to conventional solvents for sample analysis.

Objective

To develop and optimize four novel deep eutectic solvents using mixture design methodology and evaluate their effectiveness as extraction agents for selenium determination in selenium-enriched rice using ultrasonic-assisted extraction coupled with ICP-MS.

Results

Optimal DES formulations were established based on density and viscosity measurements. The four DESs achieved selenium recovery rates ranging from 85.5% to 106.7% compared to traditional methods. DES1 and DES4 yielded higher selenium levels (0.083 and 0.073 mg/kg respectively) than the traditional microwave digestion method (0.061 mg/kg).

Conclusion

The study demonstrates that deep eutectic solvents represent an effective, environmentally friendly green chemistry approach for selenium determination in rice. The UAE-ICP-MS method using DESs provides accurate and precise selenium analysis while reducing reliance on toxic and hazardous inorganic solvents.
  • Published in:Foods,
  • Study Type:Experimental/Analytical Method Development,
  • Source: 10.3390/foods14030384, PMID: 39941978
Scroll to Top