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Other literature type . 2015
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Smoothies comerciais. Estabilidade dos compostos antioxidantes

Authors: Nunes, M. Antónia; Costa, Anabela; Barreira, João; Ferreira da Vinha, Ana; Alves, Rita C.; Rocha, Ada; Oliveira, Beatriz;

Smoothies comerciais. Estabilidade dos compostos antioxidantes

Abstract

Os smoothies são bebidas resultantes da mistura de frutas, sumos e polpas de frutas, hortícolas, iogurte ou leite. A mais-valia associada a estes produtos é o conceito “natural” e “fresco”, sem adição de açúcares e/ou corantes, aproximando o seu conteúdo às características da fruta no seu estado natural. Neste estudo, determinou-se o teor de compostos bioativos (compostos fenólicos, flavonoides e taninos) e a capacidade antioxidante (inibição do DPPH• e poder redutor, FRAP) de smoothies disponíveis no mercado português. Para estudar as alterações ao longo do armazenamento, as amostras foram analisadas em três períodos distintos: momento da aquisição, 14 e 21 dias depois. Os resultados demonstraram, de forma inequívoca, a diminuição do teor de compostos bioativos e da capacidade antioxidante ao longo do tempo. Além do mais, este decréscimo de bioatividade ocorreu independentemente do tipo de formulação utilizada, sem que qualquer das matrizes tivesse evidenciado um efeito protetor.

Country
Portugal
Keywords

Formulações, Compostos bioativos, Health sciences, Medical and Health sciences, Alimentos Funcionais, Ciências médicas e da saúde, Medical and Health sciences, Ciências da Saúde, Ciências médicas e da saúde, Tempo de prateleira

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download
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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