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Type: Artigo
Title: Water loss in table grapes: Model development and validation under dynamic storage conditions
Author: Pereira, Ericsem
Silva, Renata Gonçalves Broco e
Spagnol, Wigberto Antonio
Silveira Junior, Vivaldo
Abstract: Water loss is a critical problem affecting the quality of table grapes. Temperature and relative humidity (RH) are essential in this process. Although mathematical modelling can be applied to measure constant temperature and RH impacts, it is proved that variations in storage conditions are normally encountered in the cold chain. This study proposed a methodology to develop a weight loss model for table grapes and validate its predictions in non-constant conditions of a domestic refrigerator. Grapes were maintained under controlled conditions and the weight loss was measured to calibrate the model. The model described the water loss process adequately and the validation tests confirmed its predictive ability. Delayed cooling tests showed that estimated transpiration rates in subsequent continuous temperature treatment was not significantly influenced by prior exposure conditions, suggesting that this model may be useful to estimate the weight loss consequences of interruptions in the cold chain. © 2018, Sociedade Brasileira de Ciencia e Tecnologia de Alimentos, SBCTA. All rights reserved.
Subject: Modelagem preditiva
Uva de mesa
Country: Brasil
Editor: Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Rights: Aberto
Identifier DOI: 10.1590/1678-457x.08817
Date Issue: 2018
Appears in Collections:FEA - Artigos e Outros Documentos

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