MODELING OF THIN-LAYER KINETICS AND COLOR CHANGES OF APPLE SLICES DURING FAR-INFRARED VACUUM DRYING

Mitrevski, Vangelce (2022) MODELING OF THIN-LAYER KINETICS AND COLOR CHANGES OF APPLE SLICES DURING FAR-INFRARED VACUUM DRYING. Thermal Science, 26 (5B). pp. 4437-4446. ISSN 0354-9836

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Abstract

In this study far infrared vacuum drying kinetics and change of color quality parameters of apple slices were analyzed. The experimental data set of drying kinetics was obtained on the experimental set-up designed to imitate an industrial far-infrared vacuum dryer. For approximation of the experimental data with regard to the moisture ratio four well known thin-layers drying models from scientific
and engineering literature and new developed model of Mitrevski et al., were used. The performed statistical analyzes show that the model of Mitrevski et al., has the best statistical performance than well-known thin-layer drying models. The estimated values of moisture diffusivity of apple obtained from this study arewithin the range from 2.80·10–11 to 1.70·10–10 m2/s. A negative effect on the totalcolor change of far infrared vacuum dried apple slices was observed with increasing of temperature of infrared heaters and vacuum pressure.

Item Type:	Article
Subjects:	Scientific Fields (Frascati) > Engineering and Technology > Mechanical engineering Scientific Fields (Frascati) > Engineering and Technology > Other engineering and technologies
Divisions:	Faculty of Technical Sciences
Depositing User:	Prof. d-r. Vangelce Mitrevski
Date Deposited:	07 Sep 2023 08:05
Last Modified:	07 Sep 2023 08:05
URI:	https://eprints.uklo.edu.mk/id/eprint/8819

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