Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/62962
Type: Artigo de periódico
Title: Chemical and economic evaluation of natural antioxidant extracts. obtained by ultrasound-assisted and agitated bed extraction from jussara pulp (Euterpe edulis)
Author: Vieira, GS
Cavalcanti, RN
Meireles, MAA
Hubinger, MD
Abstract: This work aimed to evaluate the influence of ultrasonic and agitated bed extractions on the chemical composition and manufacturing costs of extracts obtained from jussara (Euterpe edulis) pulp. The effects of extraction time (5-180 min), temperature (25-55 degrees C), ethanol concentration (0-90% in acidified water) and solvent/pulp ratio (5-30 mL/g) on the extraction yield, phenolic content, anthocyanin content, antioxidant capacity and manufacturing costs were assessed. The yields provided by the ultrasound-assisted and agitated bed extractions were not significantly different. The anthocyanins and phenolic compound yields were significantly affected by the extraction time, the ethanol concentration in water and the solvent/feed ratio, but not by the temperature. In general, the antioxidant capacity of the extracts displayed tendencies similar to the anthocyanin and phenolic compound yields. The production of crude extracts obtained by ultrasound and agitated bed extraction incurred greater manufacturing costs compared to the market prices of assai extracts. (C) 2013 Elsevier Ltd. All rights reserved.
Subject: Euterpe edulis
Anthocyanins
Ultrasound
Antioxidant capacity
Process simulation
Manufacturing costs
Country: Inglaterra
Editor: Elsevier Sci Ltd
Rights: fechado
Identifier DOI: 10.1016/j.jfoodeng.2013.05.030
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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