@article {https://doi.org/10.1111/1750-3841.17645, title = {Deep eutectic system enhanced oat protein extraction}, journal = {Journal of Food Science}, volume = {90}, number = {1}, year = {2025}, pages = {e17645}, abstract = {

Abstract Oats are a rich source of plant-based proteins owing to their nutritional value, diverse functions, and high abundance. However, traditional methods for extracting oat proteins (OPs), such as alkali solution acid precipitation (ASAP), can cause environmental pollution and potentially protein denaturation. In this work, we studied the use of deep eutectic solvents (DESs) and deep eutectic system (DESys)-based methods for OP extraction. The DES are composed of ionic liquids (ILs) and choline chloride (ChCl) as hydrogen bond acceptors (HBAs), and polyols as hydrogen bond donors (HBDs) for OP extraction. By systematically investigating the extraction conditions, it was found that using ChCl as an HBA in the DESys-based method allowed for a significant increase in protein recovery yield compared to the ASAP and DES-based methods. Furthermore, the physicochemical properties of OPs extracted using the ASAP, DES, and DESys-based methods exhibited some differences, particularly in their molecular structure, amino acid composition, and thermal properties, suggesting that the properties of OP could be potentially adjusted by DESys- and DES-based methods. When considering both toxicity and protein recovery yield, the DESys-based extraction method using ChCl as the HBA is more suitable for OP extraction. This study demonstrated a green and efficient method for OP extraction that minimizes environmental impact, potentially bridging the gap between ILs and DES, and offering insights for designing new DES- or DESys-based extraction strategies for biological molecules.

}, keywords = {Deep eutectic solvent, Deep eutectic system, ionic liquid, oat protein, protein extraction}, doi = {https://doi.org/10.1111/1750-3841.17645}, url = {https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/1750-3841.17645}, author = {Ge, Wuxia and Xiao, Zhixin and Ding, Xinru and Bi, Wentao and Chen, David D. Y.} } @article {GE2025465830, title = {Green synthesis of magnetic aromatic polyamide composites via mechanochemical ball milling with a deep eutectic system for the magnetic solid-phase extraction of antibiotics from water}, journal = {Journal of Chromatography A}, volume = {1747}, year = {2025}, pages = {465830}, abstract = {

Magnetic aromatic polyamide (MAPA) composites were synthesized using a green mechanochemical ball milling process and used for magnetic solid-phase extraction (MSPE) and detection of trace level fluoroquinolone antibiotics (FQs) from water samples. The formation of MAPAs was facilitated by deep eutectic systems (DESys) created from magnetic beads and organic monomers during ball milling. A comprehensive study was conducted to investigate the kinetics, thermodynamics, and mechanisms of MAPA adsorption of ciprofloxacin hydrochloride (CIP) and ofloxacin (OFL) from water. The maximum adsorption capacities for CIP and OFL were found to be 151.5 mg/g and 164.1 mg/g, respectively. Additionally, the recyclability and selective adsorption capabilities of MAPAs were evaluated. MAPAs were subsequently used for MSPE of CIP and OFL in water samples. Both UV\–Vis spectrometry and HPLC methods can be used for analysis, the MSPE-HPLC method showed superior linearity for CIP (0.06\–1500 μg/L) and OFL (1\–1200 μg/L), with R\² values of 0.9995 and 0.9999, and limit of detection (LOD) as low as 0.006 μg/L and 0.02 μg/L, respectively. Both analytical methods are highly effective and practical for use with real water samples. MAPA used for MSPE offer a promising green approach for detecting antibiotic contamination in aquatic ecosystems.

}, keywords = {antibiotics, Deep eutectic solvent, Deep eutectic system, Magnetic aromatic polyamide composites, Magnetic solid phase extraction, Mechanochemical method}, issn = {0021-9673}, doi = {https://doi.org/10.1016/j.chroma.2025.465830}, url = {https://www.sciencedirect.com/science/article/pii/S0021967325001785}, author = {Wuxia Ge and Yumei Chen and Xinru Ding and Wentao Bi and David D. Y. Chen} } @article {ZHANG2023127394, title = {Preparation of carbon-rich material from Dendrobium officinale polysaccharide in deep eutectic system}, journal = {International Journal of Biological Macromolecules}, volume = {253}, year = {2023}, pages = {127394}, abstract = {

A carbon-rich material (DESysChar) was prepared from polysaccharide within a deep eutectic system (DESys) containing oxalic acid, and systematically characterized using various analytical techniques. The investigation of reaction mechanism revealed concurrent dehydration and etherification processes. This study commenced with the extraction of plant polysaccharide using the DESys-based mechanochemical extraction method from Dendrobium officinale. Subsequently, the DESys method was used to carbonize the extracted Dendrobium officinale polysaccharide and produce DESysChar. DESysChar was then used for the adsorption and determination of pollutants in water. This study represents a significant advancement in eco-friendly material synthesis, enabling the low-temperature (120\ \°C) carbonization of plant-derived polysaccharides, thereby reducing energy consumption and environmental impact. The effective adsorption of methylene blue by DESysChar underscores its potential in environmental remediation. This study presents a more responsible and efficient approach to polysaccharide extraction and carbonization, addressing environmental concerns. Embracing the 4S workflow (involving Sustainable raw materials converted into Sustainable degradable products, by using Sustainable technology throughout the process to create a Sustainable environment) promotes sustainability in material development, laying the foundation for future eco-friendly practices in various industries. In summary, this study propels sustainable polysaccharide development for widespread use.

}, keywords = {Carbon-rich material, Deep eutectic solvent, Deep eutectic system, Pollutant adsorption, POLYSACCHARIDE}, issn = {0141-8130}, doi = {https://doi.org/10.1016/j.ijbiomac.2023.127394}, url = {https://www.sciencedirect.com/science/article/pii/S0141813023042915}, author = {Yuan Zhang and Lu Yu and Wuxia Ge and Wentao Bi and David D. Y. Chen} }