CO2-triggered switchable hydrophilicity solvent as a recyclable extractant for ultrasonic-assisted extraction of Polygonatum sibiricum polysaccharides
文献类型: 外文期刊
作者: Chen J.; Xu Y.; Tan Z.
作者机构:
关键词: Amines; Carbon dioxide; Hydrophilicity; Liquids; Polysaccharides; Solvent extraction; Extractants; Hydrophilics; Polygonatum sibirica polysaccharide; Recyclable extractant; Recyclables; Solid/liquid extraction; Solvent based; Switchable; Switchable hydrophilicity solvent; Ultrasonic-assisted extractions; Solvents
期刊名称: Food Chemistry
ISSN: 0308-8146
年卷期: 2023 年 402 卷
页码:
收录情况: SCIE(2023版) ; ; EI(2023版)
摘要: In this study, CO2-triggered switchable hydrophilicity solvents (SHSs) based on different amines and water were employed in the ultrasonic-assisted extraction of Polygonatum sibiricum polysaccharides (PSPs). When CO2 was pumped into the amine, the solution became hydrophilic and could be used as an extractant for PSPs extraction. When CO2 was removed, the solution switched hydrophobicity, with the extractants being separated from the extract and further recycled and reused. The factors affecting the solid–liquid extraction of PSPs were studied. The maximum extraction yield of 399.2 mg/g was obtained at a solid–liquid ratio of 1:20, extraction time of 60 min, extraction temperature of 50 °C, and ultrasonic power of 500 W. SHSs could be recovered and reused with 88.4% recovery after the fifth cycle. The molecular weights and monosaccharide compositions of PSPs were also determined. This study provides a new strategy for sustainable extraction of plant polysaccharides and other bioactive ingredients. © 2022 Elsevier Ltd
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