International Scientific Journal

Thermal Science - Online First

online first only

Modeling of thin-layer kinetics and color changes of apple slices during far-infrared vacuum drying

In this study far infra-red 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 setup designed to imitate an industrial far infra-red 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 are within the range from 2.80•10-11 to 1.70•10-10 m2 s-1. A negative effect on the total color change of far infra-red vacuum dried apple slices was observed with increasing of temperature of infrared heaters and vacuum pressure
PAPER REVISED: 2022-04-04
PAPER ACCEPTED: 2022-04-14
  1. Kanevce, G., et al., Vacuum Drying of Mushrooms, Proceedings, 14th International Drying Symposium of Tehnologist for Drying and Storing, Stubicke Toplice, Croatia, 1998, Vol. 1, pp. 220-229.
  2. Doymaz, I., Infrared Drying Characteristics of Bean Seeds, J. of Food Process. Preserv., 39 (2015), 6, pp. 933-939.
  3. Pawar, S.P., Pratape, V.M., Fundamentals of Infrared Heating and its Application in Drying of Food Materials: A review, J. Food Process. Eng., 40 (2017), 1, e12308.
  4. Riadh, M. H., et al., Infrared Heating in Food Drying: An overview, Dry. Technol., 33 (2015), 3, pp. 322-335.
  5. Mongpraneet, S., et al., Accelerated Drying of Welsh Onion by Far Infrared Radiation under Vacuum Conditions, J. Food Eng., 55 (2002), 2, pp. 147-156. doi: 10.1016/S0260-8774(02)00058-4.
  6. Alaei, B., Chyjan, R.Z., Modelling of Nectarine Drying near Infrared-Vacuum Conditions, Acta Sci.Pol.Techol.Aliment., 14 (2015), 1, pp. 15-27. doi: 10.17306/J.AFS2015.1.2. 7. Nimmol, C., Vacuum Far-Infra Red Drying of Foods and Agricultural Materials, King Mong Univ.tehnol.north Bang., 20 (2010), 1, pp. 37-44.
  7. Hafezi, N., et al., Evaluation of Energy Consumption of Potato Slices Drying Using Vacuum-Infrared Method, Int. J. Adv. Biol. Biomed. Res., 2 (2014), 10, pp. 2651-2658. 9. Pliestic, S., Mitrevski, V., The Observation of Red Pepper in Vacuum by Measurement Temperature, Strojartsvo, 45 (2003), 1, pp. 47-54.
  8. Swasdisevi, T., et al., Optimization of a Drying Processes Using Infrared-Vacuum Drying of Cavendish Banana Slices, Songklanakarin J. Sci. Technol., 29 (2007), 3, pp. 809-816.
  9. Liu, Y., et al., Drying Characteristics and Modeling of Vacuum Far-Infrared Radiation Drying of Flos Lonicerae, J. of Food Process. Preserv., 39 (2015), 4, pp. 338-348.
  10. Aidani, E., et al., Experimental and Modeling Investigation of Mass Transfer During Combined Infrared-Vacuum Drying of Hayward Kiwifuits, Food Sci. Nutr., 5 (2016), 3, pp. 596-601. doi: 10.1002/fsn3.435.
  11. Salehi, F., Kashaninejad, M., Modeling of Moisture Loss Kinetics and Color Changes in the Surface of Lemon Slice During the Combined Infrared-Vacuum Drying, Inf. Process. Agric. 5 (2018), 4, pp. 616-523.
  12. Mitrevski, V., et al., Vacuum Far-Infrared Drying of Apple, J. Process. Energy in Agr., 20 (2016), 1, pp. 1-3.
  13. Mitrevski, V., et al., Mathematical Modelling of Far Infra-Red Vacuum Drying of Apple Slices, Therm.Sci., 23 (2019), 1, pp. 393-400. doi 10.2298/TSCI180205143M.
  14. Kanevce, G., et al., Inverse Approaches to Drying of Thin Bodies with Significant Shrinkage Effects, Int. J. Heat Mass Transf., 129 (2007), 3, pp. 379-386.
  15. Mitrevski, V., et al., Estimation Thermophysical Properties of Far-Infrared Vacuum Drying Potato by Application of Inverse Approach, Therm. Sci., 25 (2021), 1B, pp. 603-6111. doi 10.22982/TSCI20015225M.
  16. Bonazzi, C., et al., Food Drying and Dewatering, Dry.Technol., 14 (1996), 9, pp. 2135-2170.
  17. Ghaboos, S.H.H., et al., (2016). Combined Infrared-Vacuum Drying of Pumpkin Slices, J.Food Sci.Technol, 53 (2016), 5, pp. 2380-2388. doi: 10 1007/s13197-016-2212-1.
  18. Midilli, A., et al., A New Model for Single-Layer Drying, Dry. Technol., 20 (2002), 7, pp. 1503-1513.
  19. Erbay, Z., Icier, F., A Review of Thin-Layer Drying of Foods: Theory, Modeling and Experimental Results, Crit. Rev. Food Sci Nutr., 50 (2009), 5, pp. 441-464. doi: 10.1080/10408390802437063.
  20. Verma, L.R., et al., Effects of Drying Air Parameters on Rice Drying Models, Trans. ASAE, 28 (1985), 1, pp. 296-301.
  21. Jena, S., Das, H., Modelling for Vacuum Drying Characteristic of Coconut Presscake, J. Food Eng., 79 (2007), 1, pp.92-99. doi:10.1016/j.jfoodeng.2006.01.032.
  22. Mitrevski, V., et al., Adsorption Isotherms of Pear at Several Temperatures, Therm. Sci., 19 (2015), 3, pp. 1119-1129. doi 10.2298/TSCI140519082M.
  23. Sheskin, D.J., Handbook of Parametric and Nonparametric Satistical Procedures, Champan and Hall CRC, London, UK, 2011.
  24. Bundalevski, S., Modelling of Far-Infrared Vacuum Drying Processes by Applying Inverse Approach, Ph. D. thesis, University St. Climent Ohridski, Bitola, Macedonia, 2015.
  25. Saravacos, G. D., Maroulis, Z. B., Moisture Diffusivity Compilation of Literature Data of Food Materials, in: Transport Properties of Foods (Ed T.W. Fennema et al.), Marcel Dekker Inc., New York& Basel, USA, 2001, pp. 163-236.
  26. Panagiotou, N., et al., Moisture Diffusivity: Literature Data Dompilation for Foodstuffs, Int. J.Food Prop., 2 (2004), 2, pp. 273-299. 10.1081/JFP-120030038.
  27. Mariscal, M., Bouchon, P., Comparison Between at Atmospheric and Vacuum Drying of Apple Slices, Food Chem., 107 (2008), 4, pp. 1561-1569. doi: 10.1016/j.foodchem. 2007.09.031.
  28. *** , AOAC. (2002). Official methods of analysis. Method number 934.06. Association of Official Analytical Chemists Arlington, USA, 2002.
  29. ***, Statistica (Data Analysis Software System), v.10.0, Stat-Soft, Inc, USA, 2011.