Fractionation and precipitation of licorice (Glycyrrhiza glabra L.) phytochemicals by supercritical antisolvent (SAS) technique
Entity
UAM. Departamento de Química Física AplicadaPublisher
ElsevierDate
2020-03-26Citation
10.1016/j.lwt.2020.109315
LWT - Food Science and Technology 126 (2020): 109315
ISSN
0023-6438 (print)DOI
10.1016/j.lwt.2020.109315Funded by
The authors gratefully acknowledge the financial support from Ministerio de Economía y Competitividad of Spain (Projects AGL2017-89055-R and AGL2016-76736-C3-1-R). Somaris E. Quintana is grateful for the funding provided by Gobernación de Bolivar and Fundación Ceiba, Colombia, in the project “Bolívar Gana con Ciencia”Project
Gobierno de España. AGL2017-89055-R; Gobierno de España. AGL2016-76736-C3-1-REditor's Version
https://doi.org/10.1016/j.lwt.2020.109315Subjects
Antioxidant activity; Licorice; Morphology; Particle size distribution; Supercritical antisolvent precipitation; QuímicaRights
© 2020 Elsevier Ltd.Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
Supercritical anti-solvent precipitation (SAS) using carbon dioxide is a novel technique that can be used to produce powdered ingredients in small size particles, facilitating their incorporation into food matrices. In this work, the SAS precipitation of a licorice root ethanolic extract was studied. SAS assays were carried out at 15–20 MPa, 308.15 and 313.15 K, and two different concentrations (9.6 and 14.2 mg/ml) of the ethanolic licorice extract. In the range of conditions investigated, SAS pressure and temperature did not affect significantly the precipitation yield, but phytochemicals recovery was higher with the lower licorice extract concentration. Moreover, the fractionation of licorice bioactives (liquiritin, liquiritigenin, isoliquiritigenin, glabridin and glycyrrhizic acid) was assessed, together with the content of total phenolic compounds and antioxidant activity of the powders and oleoresin by-products obtained. In this respect, precipitates and oleoresins presented significant differences in the concentration of some licorice bioactives, and higher antioxidant activity was observed in precipitates. Additionally, significant effect of pressure, temperature and licorice extract concentration on the morphology and particle size of precipitates was observed, recovering smaller and more regular particles at 15–20 MPa, 313.15 K and 9.6 mg/ml licorice extract concentration, attaining satisfactory yield and antioxidant activity
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Google Scholar:Quintana, Somaris E.
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Hernández, Diego Martín
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Villanueva-Bermejo, David
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Rodríguez García-Risco, Mónica
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Fornari Reale, Tiziana
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