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Evento

Yerba Mate (Ilex paraguariensis) extraction using CO2 and hydrated ethanol as cosolvent

Hegel, Pablo EzequielIcon ; Granone, Luis IgnacioIcon ; Kotnic, P.; Knez, Z.; Knez Hrncic, M.; Pereda, SelvaIcon
Tipo del evento: Conferencia
Nombre del evento: V Iberoamerican Conference on Supercritical Fluids (Prosciba)
Fecha del evento: 02/09/2019
Institución Organizadora: Universidad Estatal de Campinas;
Título del Libro: V Iberoamerican Conference on Supercritical Fluids (Prosciba): Book of Abstracts
Editorial: Universidad Estatal de Campinas
Idioma: Inglés
Clasificación temática:
Ingeniería de Procesos Químicos

Resumen

Yerba mate is a plant that grows in subtropical South America that exhibit many healthbeneficial properties. In particular, the bio-extracts obtained from this plant findapplications in the manufacture of functional foods due to their stimulating andantioxidants properties. In this work, extract products were obtained from the extractionof yerba mate (Ilex paraguaryensis) by different high pressure technologies using liquidand supercritical CO2. Extractions were carried out in a high pressure Soxhlet apparatuswith liquid CO2 at 291 K and 55 bar. Also, supercritical CO2 extractions wereperformed at pressures between 175 bar and 260 bar and temperatures between 313 Kand 333 K. Yerba mate was previously impregnated with ethanol or an ethanolicsolution with 30 wt.% water (0.15 g/g to 1 g/g solution/yerba mate) to enhance theextraction of the main active principles. A wide range of global extraction yields(between 0.74 wt.% and 26.14 wt.%) were obtained in the experiments. Also,HPLC/MS-MS analyses of the extract products were performed to assess the selectivityof the different extraction conditions and cosolvents towards components like caffeine,theobromine, theophylline, caffeic acid and chlorogenic acid. Bioactive extractsobtained in this work show a high concentration of methylxanthines and chlorogenicacid, making these products valuable for functional food and nutraceutical applications.
Palabras clave: Methylxanthines , Extraction , CO2 , Water , Ethanol
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/156648
URL: https://www.prosciba.fea.unicamp.br/?q=node/10
URL: http://www.prosciba.fea.unicamp.br/
Colecciones
Eventos(PLAPIQUI)
Eventos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Yerba Mate (Ilex paraguariensis) extraction using CO2 and hydrated ethanol as cosolvent; V Iberoamerican Conference on Supercritical Fluids (Prosciba); Campinas; Brasil; 2019; 1-3
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