Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/61007
Type: Artigo de periódico
Title: Kinetics of L-Ascorbic Acid Degradation in Pineapple Drying under Ethanolic Atmosphere
Author: Santos, PHS
Silva, MA
Abstract: The kinetics of L-ascorbic acid degradation during drying of pineapple in normal and modified atmosphere was studied. Drying experiments were carried out in a tunnel dryer at two drying temperatures and air velocities. The drying atmosphere was modified by the addition of ethanol (0.5%v/v). The presence of ethanol in the drying atmosphere promoted a more intense water evaporation compared to the conventional process. Although the L-ascorbic acid degradation rate during the pineapple drying (final moisture content of 27% wet basis) under ethanolic atmosphere was higher, these samples retained higher amounts of L-ascorbic acid. Moreover, the Weibull model was applied to fit the kinetics data.
Subject: Ethanol
Fruit drying
Modified atmosphere
Pineapple
Vitamin C
Country: EUA
Editor: Taylor & Francis Inc
Rights: fechado
Identifier DOI: 10.1080/07373930902901950
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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