Extraction with Water‐in‐Carbon Dioxide Microemulsions: A Case Study on Steviol Glycosides | Zendy

Cui Jingwen | Zendy; Sandahl Margareta | Zendy; Wendt Ola F. | Zendy; RodriguezMeizoso Irene | Zendy

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Extraction with Water‐in‐Carbon Dioxide Microemulsions: A Case Study on Steviol Glycosides

Author(s) -

Cui Jingwen,

Sandahl Margareta,

Wendt Ola F.,

RodriguezMeizoso Irene

Publication year - 2019

Publication title -

journal of surfactants and detergents

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.349

H-Index - 48

eISSN - 1558-9293

pISSN - 1097-3958

DOI - 10.1002/jsde.12325

Subject(s) - chemistry , microemulsion , extraction (chemistry) , chromatography , stevia rebaudiana , supercritical carbon dioxide , steviol , pulmonary surfactant , water extraction , glycoside , supercritical fluid extraction , polyethylene glycol , organic chemistry , stevioside , biochemistry , food science , medicine , alternative medicine , pathology

This work explores the use of water‐in‐supercritical carbon dioxide (scCO 2 ) 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 CO 2 ‐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‐CO 2 microemulsion. Using a modified extraction setup, the microemulsion was created prior to extraction. TMN 6 was able to dissolve enough water in CO 2 to extract steviol glycosides, in detectable but very small amounts.

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