title: Extraction, chemical characterization and antioxidant activity ofLitchi chinensisSonn. andAvena sativaL. seeds extracts obtained from pressurizedn-butane.
abstract: The extraction of litchi (Litchi chinensisSonn.) and oat (Avena sativaL.) seeds were investigated usingn-butane as pressurized solvent by evaluating the effect of pressure in the range of 7-100 bar and temperature from 25 to 70 °C on the extract yield and chemical composition together with the antioxidant activity of the extracts obtained. It was experimentally observed extraction yields for both seeds up to ~3.5 wt%, with a total phenolic content around 126.4 mg GAE/100 g of extract, and an antioxidant activity up to 78.36%. Oat seeds extract presented higher values of these parameters evaluated compared to litchi extract. Based on the results found, it seems thatn-butane may be a promising solvent to conventional extraction methods, as mild operating conditions and eco-friendly solvent can be used to provide good results without any residues in the final product.
authors.affiliation: Department of Food Engineering, URI Erechim, Erechim, RS 99700-000 Brazil.
authors.forename: Marshall
authors.initials: M
authors.lastname: Paliga
authors.affiliation: Department of Food Engineering, URI Erechim, Erechim, RS 99700-000 Brazil.
authors.forename: Zuleica
authors.initials: Z
authors.lastname: Novello
authors.affiliation: Department of Food Engineering, URI Erechim, Erechim, RS 99700-000 Brazil.
authors.forename: Rogério M
authors.initials: RM
authors.lastname: Dallago
authors.affiliation: Programa de Pós Graduação em Ciências Ambientais, UNOCHAPECÓ, Chapecó, SC Brazil.
authors.forename: Jaqueline
authors.initials: J
authors.lastname: Scapinello
authors.affiliation: Programa de Pós Graduação em Ciências Ambientais, UNOCHAPECÓ, Chapecó, SC Brazil.
authors.forename: Jacir Dal
authors.initials: JD
authors.lastname: Magro
authors.affiliation: Department of Chemical and Food Engineering, UFSC, Florianópolis, SC 88040-900 Brazil.
authors.forename: Marco
authors.initials: M
authors.lastname: Di Luccio
authors.affiliation: Federal University of Santa Maria (UFSM), Cachoeira do Sul, RS 96506-302 Brazil.
authors.forename: Marcus V
authors.initials: MV
authors.lastname: Tres
authors.affiliation: Programa de Pós Graduação em Ciências Ambientais, UNOCHAPECÓ, Chapecó, SC Brazil.|Department of Chemical and Food Engineering, UFSC, Florianópolis, SC 88040-900 Brazil.
authors.forename: J Vladimir
authors.initials: JV
authors.lastname: Oliveira
keywords: Antioxidant activity; Avena sativa L.; Chemical characterization; Extraction; Litchi chinensis Sonn.; n-Butane