Effect of cell wall properties of plant tissue on porosity and shrinkage of dried apple

Joardder, Mohammad Uzzal Hossain, Karim, Azharul, Kumar, Chandan, & Brown, Richard J. (2014) Effect of cell wall properties of plant tissue on porosity and shrinkage of dried apple. In Proceedings of the 2014 International Conference on Food Properties (ICFP2014), Kuala Lumpur, Malaysia.


In this study cell wall properties; moisture distribution, stiffness, thickness and cell dimension have been taken into consideration. Cell wall stiffness dependent on complex combination of plant cell microstructures, composition and water holding capacity of the cell. In this work, some preliminary steps taken by investing cell wall properties of apple in order to predict change of porosity and shrinkage during drying. Two different types of apple cell wall characteristic were investigated to correlate with porosity and shrinkage after convective drying. A scanning electron microscope (SEM), 2N Intron, a pyncometer and image J software were used in order to measure and analyze cell characteristics, water dynamics, porosity and shrinkage. Cell stiffness of red delicious apple was found higher than granny smith apples. A significant relationship has found between cell wall characteristics and both heat and mass transfer. Consequently, evolution of porosity and shrinkage noticeably influenced during convective drying by the nature of cell wall. This study has brought better understanding of porosity and shrinkage of dried food stuff in microscopic (cell) level and would provide better insight to attain energy effective drying process and quality food stuff.

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4 citations in Web of Science®
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ID Code: 66818
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: cell wall characteristics, compressive deformation, drying kinetics, porosity, microstructure
Subjects: Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > PLANT BIOLOGY (060700) > Plant Cell and Molecular Biology (060702)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > FOOD SCIENCES (090800) > Food Engineering (090802)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Please consult the authors
Deposited On: 02 Feb 2014 23:57
Last Modified: 16 Sep 2016 12:46

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