title: Phytochemical profile, antioxidant and antimicrobial activity of extracts obtained from erva-mate (Ilex paraguariensis) fruit using compressed propane and supercritical CO2.
abstract: Traditionally,Ilex paraguariensisleaves are consumed in tea form or as typical drinks like mate and terere, while the fruits are discarded processing and has no commercial value. The aim of this work to evaluate phytochemical properties, total phenolic compounds, antioxidant and antimicrobial activity of extracts ofIlex paraguariensisfruits obtained from supercritical CO2and compressed propane extraction. The extraction with compressed propane yielded 2.72 wt%, whereas with supercritical CO21.51 wt% was obtained. The compound extracted in larger amount by the two extraction solvents was caffeine, 163.28 and 54.17 mg/g by supercritical CO2and pressurized propane, respectively. The antioxidant activity was more pronounced for the supercritical CO2extract, with no difference found in terms of minimum inhibitory concentration forStaphylococcus aureusfor the two extracts and better results observed forEscherichia coliwhen using supercritical CO2.
authors.affiliation: Environmental Sciences Area, Universidade Comunitária da Região de Chapecó (Unochapecó), P.O. Box 1141, Chapecó, SC Brazil.
authors.forename: Ciro E F
authors.initials: CEF
authors.lastname: Fernandes
authors.affiliation: Environmental Sciences Area, Universidade Comunitária da Região de Chapecó (Unochapecó), P.O. Box 1141, Chapecó, SC Brazil.
authors.forename: Jaqueline
authors.initials: J
authors.lastname: Scapinello
authors.affiliation: Environmental Sciences Area, Universidade Comunitária da Região de Chapecó (Unochapecó), P.O. Box 1141, Chapecó, SC Brazil.
authors.forename: Aline
authors.initials: A
authors.lastname: Bohn
authors.affiliation: Environmental Sciences Area, Universidade Comunitária da Região de Chapecó (Unochapecó), P.O. Box 1141, Chapecó, SC Brazil.
authors.forename: Aline A
authors.initials: AA
authors.lastname: Boligon
authors.affiliation: Phytochemical Research Laboratory, Department of Industrial Pharmacy, Federal University of Santa Maria, Build 26, Room 1115, Santa Maria, CEP 97105-900 Brazil.
authors.forename: Margareth L
authors.initials: ML
authors.lastname: Athayde
authors.affiliation: Phytochemical Research Laboratory, Department of Industrial Pharmacy, Federal University of Santa Maria, Build 26, Room 1115, Santa Maria, CEP 97105-900 Brazil.
authors.forename: Jacir Dall
authors.initials: JD
authors.lastname: Magro
authors.affiliation: Environmental Sciences Area, Universidade Comunitária da Região de Chapecó (Unochapecó), P.O. Box 1141, Chapecó, SC Brazil.
authors.forename: Marshall
authors.initials: M
authors.lastname: Palliga
authors.affiliation: Department of Chemical and Food Engineering, UFSC, Florianópolis, SC Brazil.
authors.forename: J Vladimir
authors.initials: JV
authors.lastname: Oliveira
authors.affiliation: Federal University of Santa Maria, UFSM, Cachoeira do Sul, RS Brazil.
authors.forename: Marcus V
authors.initials: MV
authors.lastname: Tres
keywords: Antioxidant activity; Minimum inhibitory concentration; Pressurized fluids; Propane; Supercritical CO2