1. Extraction of natural products from bark of Betula pendula using ionic liquids.
- Author
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Strehmel, Nadine, Strunk, David, and Strehmel, Veronika
- Subjects
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NATURAL products , *EUROPEAN white birch , *IONIC liquids , *FATTY acids , *METABOLITES , *MASS spectrometry - Abstract
Introduction: Aqueous-methanol mixtures have successfully been applied to extract a broad range of metabolites from plant tissue. However, a certain amount of material remains insoluble. Objectives: To enlarge the metabolic compendium, two ionic liquids were selected to extract the methanol insoluble part of trunk from Betula pendula. Methods: The extracted compounds were analyzed by LC/MS and GC/MS. Results: The results show that 1-butyl-3-methylimidazolium acetate ( IL-Ac) predominantly resulted in fatty acids, whereas 1-ethyl-3-methylimidazolium tosylate ( IL-Tos) mostly yielded phenolic structures. Interestingly, bark yielded more ionic liquid soluble metabolites compared to interior wood. Conclusion: From this one can conclude that the application of ionic liquids may expand the metabolic snapshot. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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