In this research, tropane alkaloids in were extracted by tropine-type ionic liquid (IL) aqueous solutions under ultrasound assistance, and N-propyltropine hexafluorophosphate ([CTr][PF]) was found to be the most ideal IL in this extraction mode after comprehensive screening. When 0.03 mol/L [CTr][PF] aqueous solution was chosen as the extraction solvent, the solid-liquid ratio of raw material powders and ionic liquid aqueous solution was 1:20 (g/mL), ultrasonic power was 90 W and extraction time was 30 min, the extraction efficiency of tropane alkaloids has reached 121.3%. Compared with common heating extraction, it can further shorten the extraction time, improve extraction efficiency and decrease IL consumption. Furthermore, extraction mechanism together with potential toxicity of IL have been explored and discussed.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6719187 | PMC |
| http://dx.doi.org/10.3390/molecules24162897 | DOI Listing |
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