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Description: Tomato is a seasonal crop and a highly perishable fruit and vegetable with moisture content of more than 90% at harvest. At harvest season there is glut of tomatoes produce in the market in developing countries and due to inadequate preservation techniques, heavy losses are incured. Drying characteristics of tomato as affected by tomatoes thickness, drying air velocity and drying air temperature were measured to understand the drying kinetics of tomato slices as well as to better improve the design of the drying system. Drying kinetics experiments were carried out in thin layer for tomato slices of 4mm, 6mm and 8mm thickness which were dried from 96.327%, 95.957% and 96.142% to 3.153%, 4.837% and 6.738% wet basis moisture content respectively in 1440minutes using a variable air speed of 2m/s and 3.2m/s. Experimental data were fitted into drying models namely; Lewis, page, Henderson and Pabis, Wang and Singh, and Logarithmic (Asymptotic). The validation tool used in this study is the MatLab Optimization Tool (2015) using the {Levenberg-Marquadt Method}. The page model gave the highest coefficient of correlation and the lowest root mean square error for the 4mm, 6mm and the 8mm of (0.9969 and 0.0278, 0.9967 and 0.0621, 0.9951 and 0.0423) respectively for the 4mm, 6mm and 8mm tomato slice thickness.

Keywords: Thin layer, Drying, Drying Kinetics, Hybrid Solar Dryer, Tomatoes
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Plant Systems & Posteharvest Technology 1

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Publication type: Presentation
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Coverage: Nigeria
Language 1: en
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Rights: Canadian Society for Bioengineering
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