Back to Search
Start Over
Application of Deep Eutectic Solvents and Ionic Liquids in the Extraction of Catechins from Tea.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2020 Jul 14; Vol. 25 (14). Date of Electronic Publication: 2020 Jul 14. - Publication Year :
- 2020
-
Abstract
- This work aimed to comprehensively evaluate the potential and effectiveness of deep eutectic solvents (DESs) in the extraction of seven catechins from various tea samples. Different combinations of DES were used, consisting of Girard's reagent T (GrT) in various mixing ratios with organic acids and choline chloride. The yields of the DES extractions were compared with those from ionic liquids and conventional solvent. DES contained malic acid, as the hydrogen bond donors showed a good solubility of catechins with different polarities. In the second part of the study, a solid-phase extraction (SPE) method was applied to the extraction of catechins from tea infusions. The method was applied to the determination of selected catechins in tea leaves and tea infusions. Furthermore, we demonstrated that the proposed procedure works well in the simultaneous monitoring of these polyphenols, which makes it a useful tool in the quality control of tea.
- Subjects :
- Chemical Fractionation methods
Chromatography, High Pressure Liquid
Plant Extracts chemistry
Plant Extracts isolation & purification
Plant Leaves chemistry
Reproducibility of Results
Spectroscopy, Fourier Transform Infrared
Temperature
Catechin chemistry
Catechin isolation & purification
Ionic Liquids chemistry
Solvents chemistry
Tea chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 25
- Issue :
- 14
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 32674477
- Full Text :
- https://doi.org/10.3390/molecules25143216