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- Title
A novel CO2-sensitive in situ deep eutectic solvent system: Efficient extraction of polyphenol phytochemicals.
- Authors
Zhang, Ying; Wang, Yao; Duan, Congjia; Xu, Jian; Yang, Han; Chang, Yuanhang; Shao, Guansong; Zhang, Su; Fu, Yujie
- Abstract
In the present study, monoethanolamine (MEA) was applied as a solvent for the extraction of polyphenols from lingonberry (Vaccinium vitis-idaea L.) pomace. In addition to solvent extraction an in situ DES could be formed with the secondary metabolites to obtain higher extraction yield. FT-IR, DSC, and TGA were used to validate MEA-based in situ DESs with reference compound. And the reusability of the solvent system still reached about 70.2% after the fifth cycles. The Box-Behnken experimental design method was used to determine the extraction efficiency under optimal conditions in practical applications, and the highest extraction yields of polyphenols increased 1.06–1.21 folds higher than that of traditional solvents. In addition, the extraction mechanism was studied using density functional theory. In summary, this study proposed a green and sustainable strategy to replace traditional solvents for targeted extraction of polyphenols from plants. [Display omitted] • Fully utilize polyphenol resources in by-products of Vaccinium vitis-idaea L. • Improve extraction efficiency by forming in-situ DESs with polyphenols in pomace. • The solvent can be recovered by bubbling CO 2 , and it can be used for 5 cycles. • The extraction method mentioned in this paper has never been reported. • Clarify the extraction mechanism by density functional theory.
- Subjects
PLANT polyphenols; EUTECTIC reactions; DENSITY functional theory; SOLVENTS; SOLVENT extraction; IN situ processing (Mining); PHYTOCHEMICALS; METABOLITES
- Publication
Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2023, Vol 194, p179
- ISSN
0263-8762
- Publication type
Article
- DOI
10.1016/j.cherd.2023.04.039