Empirical and diffusion models of rehydration process of differently dried pumpkin slices
The present study investigated the rehydration kinetics of dried pumpkin slices issued from different drying operations, namely airflow drying (AFD), freeze-drying (FD), Vacuum Multi Flash Drying (VMFD) and Swell-drying (SD) which inserts Instant Controlled Pressure Drop (DIC) Texturing between two...
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| Format: | Article |
| Language: | English |
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Springer
2019-10-01
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| Series: | Journal of the Saudi Society of Agricultural Sciences |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1658077X17302941 |
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| author | A. Benseddik A. Azzi M.N. Zidoune R. Khanniche C. Besombes |
| author_facet | A. Benseddik A. Azzi M.N. Zidoune R. Khanniche C. Besombes |
| author_sort | A. Benseddik |
| collection | DOAJ |
| description | The present study investigated the rehydration kinetics of dried pumpkin slices issued from different drying operations, namely airflow drying (AFD), freeze-drying (FD), Vacuum Multi Flash Drying (VMFD) and Swell-drying (SD) which inserts Instant Controlled Pressure Drop (DIC) Texturing between two AFD stages (AFD + DIC + AFD). Rehydration process depends on dehydration methods. It has been noticed that the slowest rehydration process has been observed for AFD whilst VMFD, FD, and SD averred short rehydration time. Experimental rehydration curves were performed through empirical and diffusion models. Hence, it has been noticed that Weibull has provided the best rehydration fitting curve. In other hand, Fick's diffusion models were also used to describe kinetics of rehydration process. They were characterized by two effective diffusivity coefficients Deff1 and Deff2 for AFD and VMFD, and three effective diffusivity coefficients in the case of FD and SD (AFD + DIC + AFD). The temperature dependence of the diffusivity coefficients was also described by Arrhenius-type relationship, with adequate activation energy levels. Keywords: Rehydration, Empirical models, Diffusive models, Mass transfer, Pumpkin slices |
| format | Article |
| id | doaj-art-751bcae5e49748e29887b6990fda535c |
| institution | Kabale University |
| issn | 1658-077X |
| language | English |
| publishDate | 2019-10-01 |
| publisher | Springer |
| record_format | Article |
| series | Journal of the Saudi Society of Agricultural Sciences |
| spelling | doaj-art-751bcae5e49748e29887b6990fda535c2025-08-20T03:48:32ZengSpringerJournal of the Saudi Society of Agricultural Sciences1658-077X2019-10-0118440141010.1016/j.jssas.2018.01.003Empirical and diffusion models of rehydration process of differently dried pumpkin slicesA. Benseddik0A. Azzi1M.N. Zidoune2R. Khanniche3C. Besombes4University of La Rochelle, Laboratory of Engineering Science for Environment (LaSIE), UMR 7356 CNRS, La Rochelle, France; Unité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133 Ghardaïa, Algeria; Unité de Recherche Matériaux et Energies Renouvelables (URMER), Faculté des Sciences, Université de Tlemcen, BP 119, Tlemcen 13000, Algeria; Corresponding author at: University of La Rochelle, Laboratory of Engineering Science for Environment (LaSIE), UMR 7356 CNRS, La Rochelle, France.Unité de Recherche Matériaux et Energies Renouvelables (URMER), Faculté des Sciences, Université de Tlemcen, BP 119, Tlemcen 13000, AlgeriaLaboratoire de nutrition et technologies alimentaires (L.N.T.A.), équipe Transformation et Elaboration des Produits Agro-alimentaires (T.E.P.A.), INATAA Université Constantine 1, Constantine, AlgeriaUnité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133 Ghardaïa, AlgeriaUniversity of La Rochelle, Laboratory of Engineering Science for Environment (LaSIE), UMR 7356 CNRS, La Rochelle, FranceThe present study investigated the rehydration kinetics of dried pumpkin slices issued from different drying operations, namely airflow drying (AFD), freeze-drying (FD), Vacuum Multi Flash Drying (VMFD) and Swell-drying (SD) which inserts Instant Controlled Pressure Drop (DIC) Texturing between two AFD stages (AFD + DIC + AFD). Rehydration process depends on dehydration methods. It has been noticed that the slowest rehydration process has been observed for AFD whilst VMFD, FD, and SD averred short rehydration time. Experimental rehydration curves were performed through empirical and diffusion models. Hence, it has been noticed that Weibull has provided the best rehydration fitting curve. In other hand, Fick's diffusion models were also used to describe kinetics of rehydration process. They were characterized by two effective diffusivity coefficients Deff1 and Deff2 for AFD and VMFD, and three effective diffusivity coefficients in the case of FD and SD (AFD + DIC + AFD). The temperature dependence of the diffusivity coefficients was also described by Arrhenius-type relationship, with adequate activation energy levels. Keywords: Rehydration, Empirical models, Diffusive models, Mass transfer, Pumpkin sliceshttp://www.sciencedirect.com/science/article/pii/S1658077X17302941 |
| spellingShingle | A. Benseddik A. Azzi M.N. Zidoune R. Khanniche C. Besombes Empirical and diffusion models of rehydration process of differently dried pumpkin slices Journal of the Saudi Society of Agricultural Sciences |
| title | Empirical and diffusion models of rehydration process of differently dried pumpkin slices |
| title_full | Empirical and diffusion models of rehydration process of differently dried pumpkin slices |
| title_fullStr | Empirical and diffusion models of rehydration process of differently dried pumpkin slices |
| title_full_unstemmed | Empirical and diffusion models of rehydration process of differently dried pumpkin slices |
| title_short | Empirical and diffusion models of rehydration process of differently dried pumpkin slices |
| title_sort | empirical and diffusion models of rehydration process of differently dried pumpkin slices |
| url | http://www.sciencedirect.com/science/article/pii/S1658077X17302941 |
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