In this study, hawthorn pectin was extracted from dried hawthorn with deep eutectic solvent(DES) and compared with the traditional extraction methods such as acid extraction (AE) and ultrasonic-assisted extraction (UAE). Under optimal conditions, with a molar ratio of choline chloride to urea at 1:3, a water content of 30 %, a liquid-to-solid ratio of 30:1 (mL/g), an extraction temperature of 80 °C, an extraction time of 60 min, and a pH of 1, the yield of hawthorn pectin was 4.33 % ± 0.02 %. The measured results were consistent with the prediction. In addition, compared with AE and UAE, the experimental results showed that DES had a higher yield, a lower degree of esterification, and a slightly different monosaccharide composition from other extraction methods. The results of infrared spectroscopy and scanning electron microscopy showed that DES had a fine microstructure and coarser surface, and the main chemical structure of DES didn't change. The rheological analysis showed that DES had lower apparent viscosity than AE and UAE. These results represent a green source for pectin extraction with high pectin yield and good performance. In conclusion, the deep eutectic solvent has good application prospects in extracting hawthorn pectin.
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http://dx.doi.org/10.1016/j.ijbiomac.2023.128688 | DOI Listing |
Chem Commun (Camb)
January 2025
Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering Jiangsu Ocean University Lianyungang, Jiangsu 222005, China.
We propose an effective method for selectively extracting the valuable metals from the spent LiNiCoMnO cathode material using an oxalic acid-based deep eutectic solvent. Through regulation of the coordination environment, NiO, CoO, and MnO are stepwise separated and further applied in the electrochemical conversion of raw PET bottles to high-purity formic acid.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, China. Electronic address:
Hermetia illucens, with a short growth cycle, is promising as a valuable source of chitin. However, the optimal method for extracting chitin from this insect and its application for hemostasis has not been addressed. This work employed an environmentally friendly choline chloride-lactic acid deep eutectic solvent technology to extract chitin effectively from the Hermetia illucens pupae shells, realizing one-step removal of inorganic salts and proteins.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China. Electronic address:
The treatment and monitoring of infected skin wounds present significant clinical challenges. Herein, a multifunctional poly(deep eutectic solvent) (PDES) electroactive hydrogel is developed by optimizing the components and the ratio of hydrogen donors and acceptors, achieving well wound hemostasis, wound healing, and monitoring administration performace. The PDES hydrogel dressing exhibits mechanical properties, including high toughness, fatigue resistance (over 9000 compression cycles), and superior skin adhesion (over 70 kPa).
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Department of Science and Technology for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128, Rome, Italy. Electronic address:
Spirulina is a unicellular microalga, characterized by blue/green color, that has received significant attention for its interesting nutritional composition. Phenolic compounds and phycocyanin (PC) are responsible for the many biological activities of Spirulina. Spirulina phenolic compounds are usually extracted using organic solvents, while PC is extracted with water or phosphate buffer solution, obtaining an extract characterized by low stability and low purity.
View Article and Find Full Text PDFFront Bioeng Biotechnol
January 2025
Department of Dental Implantology, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing, China.
Lignin is a naturally derived biomacromolecule with excellent biocompatibility and the potential for biomedical application. For the first time, this study isolated nanosized lignin microspheres (LMSs) directly from wheat straw with a polyol-based deep eutectic solvent. The size of these LMSs can be regulated by changing the isolation parameters, ranging from 90 nm to 330 nm.
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