Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit

The relative contribution of turgor pressure, cell wall and middle lamellae to the rheology of kiwifruit was studied by performing large deformation assays and using an empirical model proposed by our group. Results were compared with those obtained previously through dynamic testing. Initial (σo) a...

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Autores principales: Rojas, A.M., Delbon, M., Marangoni, A.G., Gerschenson, L.N.
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00221147_v67_n6_p2143_Rojas
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spelling todo:paper_00221147_v67_n6_p2143_Rojas2023-10-03T14:27:09Z Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit Rojas, A.M. Delbon, M. Marangoni, A.G. Gerschenson, L.N. Cellular components Dynamic test Kiwifruit Relaxation test Actinidia deliciosa The relative contribution of turgor pressure, cell wall and middle lamellae to the rheology of kiwifruit was studied by performing large deformation assays and using an empirical model proposed by our group. Results were compared with those obtained previously through dynamic testing. Initial (σo) and residual relaxation (σ∞) stresses determined under 14% constant deformation correlated significantly with complex moduli (G*) and they allowed to detect incipient plasmolysis but not to determine the individual contributions of cell wall and middle lamellae to tissue elasticity. Firmness (Fm) showed no correlation with G* because measurement of failure stress required tissue damage but it was affected by ripening allowing to determine the individual contributions of cell wall and middle lamellae to its value. Fil:Rojas, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gerschenson, L.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00221147_v67_n6_p2143_Rojas
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cellular components
Dynamic test
Kiwifruit
Relaxation test
Actinidia deliciosa
spellingShingle Cellular components
Dynamic test
Kiwifruit
Relaxation test
Actinidia deliciosa
Rojas, A.M.
Delbon, M.
Marangoni, A.G.
Gerschenson, L.N.
Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
topic_facet Cellular components
Dynamic test
Kiwifruit
Relaxation test
Actinidia deliciosa
description The relative contribution of turgor pressure, cell wall and middle lamellae to the rheology of kiwifruit was studied by performing large deformation assays and using an empirical model proposed by our group. Results were compared with those obtained previously through dynamic testing. Initial (σo) and residual relaxation (σ∞) stresses determined under 14% constant deformation correlated significantly with complex moduli (G*) and they allowed to detect incipient plasmolysis but not to determine the individual contributions of cell wall and middle lamellae to tissue elasticity. Firmness (Fm) showed no correlation with G* because measurement of failure stress required tissue damage but it was affected by ripening allowing to determine the individual contributions of cell wall and middle lamellae to its value.
format JOUR
author Rojas, A.M.
Delbon, M.
Marangoni, A.G.
Gerschenson, L.N.
author_facet Rojas, A.M.
Delbon, M.
Marangoni, A.G.
Gerschenson, L.N.
author_sort Rojas, A.M.
title Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
title_short Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
title_full Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
title_fullStr Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
title_full_unstemmed Contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
title_sort contribution of cellular structure to the large and small deformation rheological behavior of kiwifruit
url http://hdl.handle.net/20.500.12110/paper_00221147_v67_n6_p2143_Rojas
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