2005
DOI: 10.1590/s0101-20612005000400033
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Obtenção de isotermas de dessorção de cogumelo in natura e desidratado osmoticamente

Abstract: SUMMARYSORPTION ISOTHERMS FOR FRESH AND OSMOTICALLY DEHYDRATED MUSHROOMS. The present paper aimed at obtaining the desorption isotherms of Agaricus blazei mushroom in nature, which suffered osmotic dehydration. The osmotic treatment was carried out at 20ºC with �0% w/w salt solution. The isotherms were obtained for three different temperatures (40, �0 and 80°C) using the static method with saturated salt solutions. Experimental data were fitted by five models (BET, GAB, Halsey, Henderson and Oswin) and two mod… Show more

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Cited by 17 publications
(9 citation statements)
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“…After 20 days of experiments, the SP and PR samples exhibited fungal growth (at atmosphere, with sulphuric acid concentrations of 0 and 10%) and consequently, deterioration of these samples occurred due to high water availability that was absorbed from the environment. The isotherms were adjusted using the Halsey model, which was well suited to the foods and starchy materials, such as cassava, corn, potato and wheat (Kurozawa et al 2005). The Halsey model was dependent on two parameters (A and B) and best fitted for the cassava bagasse samples with the highest R-value (Table 3).…”
Section: Sorption Isothermsmentioning
confidence: 99%
“…After 20 days of experiments, the SP and PR samples exhibited fungal growth (at atmosphere, with sulphuric acid concentrations of 0 and 10%) and consequently, deterioration of these samples occurred due to high water availability that was absorbed from the environment. The isotherms were adjusted using the Halsey model, which was well suited to the foods and starchy materials, such as cassava, corn, potato and wheat (Kurozawa et al 2005). The Halsey model was dependent on two parameters (A and B) and best fitted for the cassava bagasse samples with the highest R-value (Table 3).…”
Section: Sorption Isothermsmentioning
confidence: 99%
“…O bom ajuste obtido com o modelo de GAB confirma descrições da literatura que afirmam que o mesmo ajusta bem a grande maioria das isotermas de alimentos. O modelo de BET, que segundo Kurozawa et al (2005) não é aconselhável em valores de A w superiores a 0,45, apresentou os menores valores para o coeficiente de determinação, especialmente para a temperatura de 40 °C. As duas isotermas apresentaram comportamento que se assemelham àqueles previstos para uma curva de adsorção do tipo S, segundo descrição de Giles (Al-Munhtaseb et al, 2004).…”
Section: Resultsunclassified
“…Os valores do erro (E) apresentados na Tabela 4 foram calculados de acordo com a Equação 6 (Kurozawa et al, 2005):…”
Section: Methodsunclassified