Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)

The moisture sorption isotherms of Algerian bay leaves (Laurus nobilis) were determined experimentally in this work. The equilibrium moisture contents of the leaves were measured at 40, 50, and 60 °C using static gravimetric method. Six mathematical models were tested to fit the experimental data of...

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Main Authors: N. Ouafi, H. Moghrani, N. Benaouada, N. Yassaa, R. Maachi, R. Younsi
Format: Article
Language:English
Published: Universidad del Bío-Bío 2015-12-01
Series:Maderas: Ciencia y Tecnología
Subjects:
Online Access:https://revistas.ubiobio.cl/index.php/MCT/article/view/2283
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author N. Ouafi
H. Moghrani
N. Benaouada
N. Yassaa
R. Maachi
R. Younsi
author_facet N. Ouafi
H. Moghrani
N. Benaouada
N. Yassaa
R. Maachi
R. Younsi
author_sort N. Ouafi
collection DOAJ
description The moisture sorption isotherms of Algerian bay leaves (Laurus nobilis) were determined experimentally in this work. The equilibrium moisture contents of the leaves were measured at 40, 50, and 60 °C using static gravimetric method. Six mathematical models were tested to fit the experimental data of sorption isotherms and predict the hygroscopic behavior during storage or drying. Peleg model was found to be the best fitting model for describing the sorption curves. The net isosteric heat of sorption was computed from the equilibrium data at different temperatures by applying the integrated form of the Clausius-Clapeyron equation. The net isosteric heat of sorption is inversely proportional to the equilibrium moisture content and is found to be an exponential function of moisture content.
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spelling doaj.art-aceff2c4c31f45499a315094d098ca172024-01-12T19:05:46ZengUniversidad del Bío-BíoMaderas: Ciencia y Tecnología0717-36440718-221X2015-12-011743265Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)N. OuafiH. MoghraniN. BenaouadaN. YassaaR. MaachiR. YounsiThe moisture sorption isotherms of Algerian bay leaves (Laurus nobilis) were determined experimentally in this work. The equilibrium moisture contents of the leaves were measured at 40, 50, and 60 °C using static gravimetric method. Six mathematical models were tested to fit the experimental data of sorption isotherms and predict the hygroscopic behavior during storage or drying. Peleg model was found to be the best fitting model for describing the sorption curves. The net isosteric heat of sorption was computed from the equilibrium data at different temperatures by applying the integrated form of the Clausius-Clapeyron equation. The net isosteric heat of sorption is inversely proportional to the equilibrium moisture content and is found to be an exponential function of moisture content.https://revistas.ubiobio.cl/index.php/MCT/article/view/2283Adsorptiondesorptionequilibrium moisture contentLaurus nobilis leavesnet isosteric heatsorption isotherms
spellingShingle N. Ouafi
H. Moghrani
N. Benaouada
N. Yassaa
R. Maachi
R. Younsi
Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)
Maderas: Ciencia y Tecnología
Adsorption
desorption
equilibrium moisture content
Laurus nobilis leaves
net isosteric heat
sorption isotherms
title Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)
title_full Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)
title_fullStr Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)
title_full_unstemmed Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)
title_short Moisture sorption isotherms and heat of sorption of Algerian bay leaves (Laurus nobilis)
title_sort moisture sorption isotherms and heat of sorption of algerian bay leaves laurus nobilis
topic Adsorption
desorption
equilibrium moisture content
Laurus nobilis leaves
net isosteric heat
sorption isotherms
url https://revistas.ubiobio.cl/index.php/MCT/article/view/2283
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AT nbenaouada moisturesorptionisothermsandheatofsorptionofalgerianbayleaveslaurusnobilis
AT nyassaa moisturesorptionisothermsandheatofsorptionofalgerianbayleaveslaurusnobilis
AT rmaachi moisturesorptionisothermsandheatofsorptionofalgerianbayleaveslaurusnobilis
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