Extraction with Water‐in‐Carbon Dioxide Microemulsions: A Case Study on Steviol Glycosides
| Autor: | Ola F. Wendt, Jingwen Cui, Irene Rodríguez-Meizoso, Margareta Sandahl |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Chromatography 010304 chemical physics General Chemical Engineering Extraction (chemistry) Glycoside Steviol Ether 02 engineering and technology Polyethylene glycol 01 natural sciences Surfaces Coatings and Films chemistry.chemical_compound Stevia rebaudiana 020401 chemical engineering chemistry 0103 physical sciences Carbon dioxide Microemulsion 0204 chemical engineering Physical and Theoretical Chemistry |
| Zdroj: | Journal of Surfactants and Detergents. 22:1505-1514 |
| ISSN: | 1558-9293 1097-3958 |
| Popis: | This work explores the use of water-in-supercritical carbon dioxide (scCO2) microemulsions for the extraction of polar metabolites from plants. Stevia rebaudiana Bertoni leaves and polyethylene glycol trimethylnonyl ether (TMN) surfactants were selected for a case study. A CO2-water-TMN 10 mixture at 35 °C and 30.0 MPa extracted 7 mg target analyte/g dry leaves. The extraction was proven to occur due to a water-surfactant liquid solution rather than a water-in-CO2 microemulsion. Using a modified extraction setup, the microemulsion was created prior to extraction. TMN 6 was able to dissolve enough water in CO2 to extract steviol glycosides, in detectable but very small amounts. |
| Databáze: | OpenAIRE |
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