2015
DOI: 10.1590/1983-40632015v4530270
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Contração volumétrica e cinética de secagem de fatias de banana variedade Terra

Abstract: RESUMO A secagem é um método empregado na conservação de alimentos, influenciando no tempo de preservação, qualidade e durabilidade desses produtos. Este trabalho objetivou caracterizar a cinética de secagem e avaliar o encolhimento de fatias de banana variedade Terra, sob temperaturas de secagem de 40-60 ºC. Os modelos matemáticos utilizados para a análise da secagem foram aproximação da difusão, dois termos, Midilli & Kucuk e Thompson e, para o encolhimento, Lozano, McMinn & Magee, Rovedo, Suarez &am… Show more

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Cited by 14 publications
(23 citation statements)
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“…In addition, for a certain temperature, the parameter b decreased with the increase in thickness, indicating that the drying rate decreases for a certain moisture ratio, which is an expected result. Similar results have been reported in the literature, such as those of Leite et al (2015), who fitted mathematical models to the drying kinetics data of banana slices. Table 4 shows the parameters obtained from the fit of models of Page and Silva et al (2013) to the experimental data of drying kinetics, and also the statistical indicators determination coefficient (R 2 ) and chi-square ( 2  ).…”
Section: Description Of Diffusion Modelsupporting
confidence: 89%
“…In addition, for a certain temperature, the parameter b decreased with the increase in thickness, indicating that the drying rate decreases for a certain moisture ratio, which is an expected result. Similar results have been reported in the literature, such as those of Leite et al (2015), who fitted mathematical models to the drying kinetics data of banana slices. Table 4 shows the parameters obtained from the fit of models of Page and Silva et al (2013) to the experimental data of drying kinetics, and also the statistical indicators determination coefficient (R 2 ) and chi-square ( 2  ).…”
Section: Description Of Diffusion Modelsupporting
confidence: 89%
“…Fonte: Porto 2001A Tabela 1 relaciona os modelos matemáticos empregados no estudo da cinética de secagem da polpa de carambola. Esses modelos são amplamente utilizados na literatura com o intuito de predizer o fenômeno da secagem de produtos agrícolas (SANTOS et al, 2010;GONELI et al, 2014;LEITE et al, 2015). Onde: RU -razão de umidade do produto, adimensional; t -tempo de secagem, h; k, k 0 , k 1coeficientes de secagem, h -1…”
Section: Figura 1 -Secador Descontínuo De Bandejasunclassified
“…A cinética e a modelagem matemática da secagem são consideradas ferramentas importantes na otimização do processo de secagem (RESENDE et al, 2010;FERREIRA et al, 2012;GONELI et al, 2014;LEITE et al, 2015). A cinética de secagem tem sido um assunto amplamente utilizado e discutido na literatura, apontando evidências que a temperatura e a velocidade do ar de secagem, se configuram como as variáveis mais importantes neste processo (BORGES et al, 2010;SANTOS et al, 2010;SANJINEZ-ARGANDOÑA et al, 2011).…”
Section: Introductionunclassified
“…This fact is due to difficulties regarding the demand of high-quality products, which is related to the shelf life, which for bananas, is short. A method to help producers to attend this specific quality required by developed countries and, consequently, achieve a larger amount of market share is the drying process (Borges et al, 2010;Leite et al, 2015). This procedure also prevents production losses related to storage and inappropriate transport.…”
Section: Introductionmentioning
confidence: 99%