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Type: Artigo
Title: Physical properties and morphology of spray dried microparticlescontaining anthocyanins of jussara (euterpe edulis martius) extract
Author: Carvalho, Ana Gabriela da Silva
Machado, Mariana Teixeira da Costa
Silva, Vanessa Martins da
Sartoratto, Adilson
Rodrigues, Rodney Alexandre Ferreira
Hubinger, Miriam Dupas
Abstract: Anthocyanins are sensitive compounds and easily degradable when exposed to light, oxygen and pH values higher than 7. In this context, to better take advantage of the functional properties and to increase the stability of these pigments, this work aimed to obtain extracts from jussara (Euterpe edulis Martius) pulp and to produce spray dried microparticles. Maltodextrin with different dextrose equivalent values (10, 20 and 30 DE), gum Arabic and the combination of the maltodextrin 10 DE with gum Arabic (proportions 25:75; 50:50 and 75:25) were evaluated as carrier agents. Microparticles were characterized in relation to the moisture content, water activity, hygroscopicity, glass transition temperature, particle size distribution, color, anthocyanin content and profile, antioxidant capacity and microstructure. Microparticles showed high anthocyanin retention, above 88%. Anthocyanin profiles were similar to the microparticles and jussara extract and two anthocyanins identified were cyanidin 3-rutinoside and cyanidin 3-glucoside. Carrier agents influenced on the microparticles characteristics; maltodextrin 30 DE presented higher hygroscopicity and the lowest glass transition temperature. Microparticles produced with maltodextrin 10, 20 and 30 DE have shown smoother spherical surface than particles constituted with gum Arabic. Homogeneous distribution of anthocyanin in the particle structure was observed by confocal microscopy analysis
Subject: Antioxidantes
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.powtec.2016.03.007
Date Issue: 2016
Appears in Collections:FEA - Artigos e Outros Documentos
CPQBA - Artigos e Outros Documentos

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