Articles
Effect of atmospheric cold plasma pre-treatment on drying kinetics of Tropica mango (Mangifera indica L.)
Article number
1382_11
Pages
85 – 92
Language
English
Abstract
Hot air drying has been one of the most used methods to dry mango fruit.
However, this mode of drying is associated with longer drying time and elevated temperature that affects the quality and nutritional characteristics of the final product.
In recent years pre-treatments such as cold plasma has been introduced as a novel technology to accelerate the drying process of fresh produce and preserve the nutritional values.
Therefore, the aim of this study was to evaluate the effects of cold plasma (CP) pre-treatment on the drying kinetics of mango Tropica slices during convective air drying.
Drying was done 60°C and fruit without treatment was used as a control.
The experimental data obtained during the drying process were fitted to seven thin layer mathematical models to describe the drying kinetics of the mango slice.
Effectiveness of the models were compared based on their coefficient of determination (R2) and root mean square error (RMSE). The results indicated that CP pre-treatment accelerated the mass transfer during the drying process, resulting in lower drying time compared to the control.
Among the tested models, logarithmic model was the most suitable to describe drying kinetics of mango slices with a correlation coefficient of R2 equal to 0.99. This study demonstrated that CP can be used as a suitable pre-treatment to shorten the drying time.
Future research in understanding the influence of CP pre-treatment on drying of agricultural products.
However, this mode of drying is associated with longer drying time and elevated temperature that affects the quality and nutritional characteristics of the final product.
In recent years pre-treatments such as cold plasma has been introduced as a novel technology to accelerate the drying process of fresh produce and preserve the nutritional values.
Therefore, the aim of this study was to evaluate the effects of cold plasma (CP) pre-treatment on the drying kinetics of mango Tropica slices during convective air drying.
Drying was done 60°C and fruit without treatment was used as a control.
The experimental data obtained during the drying process were fitted to seven thin layer mathematical models to describe the drying kinetics of the mango slice.
Effectiveness of the models were compared based on their coefficient of determination (R2) and root mean square error (RMSE). The results indicated that CP pre-treatment accelerated the mass transfer during the drying process, resulting in lower drying time compared to the control.
Among the tested models, logarithmic model was the most suitable to describe drying kinetics of mango slices with a correlation coefficient of R2 equal to 0.99. This study demonstrated that CP can be used as a suitable pre-treatment to shorten the drying time.
Future research in understanding the influence of CP pre-treatment on drying of agricultural products.
Authors
L.A. Yanclo, G. Sigge, Z.A. Belay, O.J. Caleb
Keywords
hot air, moisture content, convective drying, Mangifera indica L
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