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Type: Artigo
Title: Purple corn (zea mays l.) pericarp hydroalcoholic extracts obtained by conventional processes at atmospheric pressure and by processes at high pressure
Author: Monroy, Yaneth M.
Rodrigues, Rodney A. F.
Sartoratto, Adilson
Cabral, Fernando A.
Abstract: Extracts of Peruvian purple corn pericarp (Zea mays L.) were obtained: (1) via supercritical fluid extraction with CO2 as solvent and EtOH-H2O (70:30, v/v) as co-solvent, (2) via pressurized liquid extraction (PLE) with EtOH-H2O (70:30, v/v) and, (3) via two conventional extraction processes, stirred vessel and Soxhlet. The extraction yields and extract compositions were compared to each other. The parameters measured were the point-to-point extraction yield, the global extraction yield and composition of extracts regarding contents of total phenolics, total flavonoids, total anthocyanins and specific anthocyanins such as cyanidin-3-glucoside, peonidin-3-glucoside and pelargonidin-3-glucoside. Antioxidant activity by DPPH and in vitro antiproliferative activity were also evaluated considering seven cancer cell lines. High yields and higher contents of phenolic compounds, accompanied by a high antioxidant activity at 50 °C, were obtained for supercritical extraction at 60 °C. Antioxidant activity showed good correlation with the content of phenolic compounds, but there was no antiproliferative activity
Subject: Compostos fenólicos
Country: Alemanha
Editor: Springer
Rights: Aberto
Identifier DOI: 10.1007/s43153-020-00009-x
Date Issue: 2020
Appears in Collections:FEA - Artigos e Outros Documentos
CPQBA - Artigos e Outros Documentos

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