Mechanistic Insights Into Ultrasound-Assisted Plant Stilbenes Sustainable Extraction Using Hydrophilic NADES: A Case Study of Cajaninstilbene Acid With Integrated NMR, COSMO-RS, and MD Simulation

What if the secret to greener, smarter extraction lies in nature's own solvents? A new study on ultrasound-assisted extraction using hydrophilic NADES reveals the hidden mechanics behind recovering bioactive stilbenes from plants.

Forget harsh chemicals—nature has its own toolkit. Researchers turned to Camellia japonica, an East Asian plant long used in traditional medicine, to explore how hydrophilic Natural Deep Eutectic Solvents (NADES) can sustainably extract valuable stilbenes, specifically cajaninstilbene acid. The study combines nuclear magnetic resonance (NMR), COSMO-RS modeling, and molecular dynamics simulations to dissect the extraction process at a molecular level. The ultrasound assistance enhances mass transfer, while NADES's hydrogen-bonding network selectively interacts with target compounds. The findings show that these green solvents not only match but potentially outperform conventional methods in efficiency and environmental impact. This work paves the way for scalable, eco-friendly extraction of bioactive compounds for cosmetics and pharmaceuticals, addressing a critical gap in sustainable production.

Key Points

• Ultrasound boosts extraction efficiency with green NADES.
• NMR, COSMO-RS, and MD reveal molecular mechanisms.
• Sustainable recovery of cajaninstilbene acid from plants.