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Food Science and Technology
Article . 2008 . Peer-reviewed
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Food Science and Technology
Article
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Comportamento higroscópico do açaí e cupuaçu em pó

Authors: Silva, Alessandra Eluan da; Silva, Luiza Helena Meller da; Pena, Rosinelson da Silva;

Comportamento higroscópico do açaí e cupuaçu em pó

Abstract

Neste trabalho, isotermas de adsorcao e dessorcao do acai (Euterpe oleracea Mart.) e do cupuacu (Theobroma grandiflorum Schum.) em po foram determinadas experimentalmente com o auxilio de higrometro AQUAlab3TE da Decagon nas temperaturas de 15, 25 e 35 °C. As curvas obtidas apresentaram um comportamento do tipo III, caracteristico de materiais ricos em carboidratos. Os dados experimentais de adsorcao e dessorcao dos produtos foram ajustados, por analise de regressao nao-linear, usando o aplicativo STATISTICA para Windows 5.1B, aos modelos matematicos de Handerson, Oswin, GAB e BET-modificado. Os modelos de Oswin e GAB foram os que melhor se ajustaram aos dados experimentais de sorcao de umidade para o acai e cupuacu em po, respectivamente. Determinou-se ainda a monocamada para os dois produtos e o calor de dessorcao para o acai em po.

Keywords

monocamada, sorption, desorption heat, monolayer, isotherm, calor de dessorção, modeling, isotermas, sorção, modelagem

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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!
12
Average
Top 10%
Average
Green
gold