caa a22 4500 606188266 CHVBK 20210128100844.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10891-015-1167-9 doi (NATIONALLICENCE)springer-10.1007/s10891-015-1167-9 Determination of the Moisture-Sorption Isotherms and Isosteric Heat of Henna Leaves [Elektronische Daten] [S. Bennaceur, B. Draoui, B. Touati, A. Benseddik, A. Saad, L. Bennamoun] Equilibrium moisture desorption and adsorption isotherms of Lawsonia inermis L. (commonly known as henna) leaves at temperatures of 30, 40 and 50°C with a water activity ranging from 0.057 to 0.898 were obtained by the gravimetric-static method. It was established that when the temperature of these leaves increases, their moisture content increases too with a hysteresis effect. The experimental data on the sorption of the indicated leaves were compared with the corresponding calculation data obtained with the use of the GAB, modified BET, Henderson-Thompson, modified Halsey, modified Oswin, and Peleg models. Evaluation of these models on the basis of statistical processing of the data obtained with them, including the calculus of the standard error and the correlation coefficient, has shown that the GAB and Peleg models represent sorption curves more adequately. The net isosteric heats of desorption and adsorption of henna leaves were determined by the sorption isotherms constructed using the Clausius-Clapeyron equation. An expression for predicting these thermodynamic properties of plants is proposed. Springer Science+Business Media New York, 2015 henna leaves nationallicence equilibrium moisture sorption nationallicence isosteric heat of sorption nationallicence sorption isotherms nationallicence Bennaceur S. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut Draoui B. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut Touati B. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut Benseddik A. Unité de Recherche Appliquée en Energies Renouvelables, Ghardaïa, Algeria aut Saad A. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut Bennamoun L. Department of Mechanical Engineering, University of New Brunswick, Fredericton, NB, Canada aut Journal of Engineering Physics and Thermophysics Springer US; http://www.springer-ny.com 88/1(2015-01-01), 52-62 1062-0125 88:1<52 2015 88 10891 https://doi.org/10.1007/s10891-015-1167-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10891-015-1167-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bennaceur S. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut NATIONALLICENCE 700 1- Draoui B. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut NATIONALLICENCE 700 1- Touati B. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut NATIONALLICENCE 700 1- Benseddik A. Unité de Recherche Appliquée en Energies Renouvelables, Ghardaïa, Algeria aut NATIONALLICENCE 700 1- Saad A. Laboratoire d'Energetique en Zones Arides, Université de Béchar, Béchar, Algeria aut NATIONALLICENCE 700 1- Bennamoun L. Department of Mechanical Engineering, University of New Brunswick, Fredericton, NB, Canada aut NATIONALLICENCE 773 0- Journal of Engineering Physics and Thermophysics Springer US; http://www.springer-ny.com 88/1(2015-01-01), 52-62 1062-0125 88:1<52 2015 88 10891