DEVELOPMENT AND EVALUATION OF POMEGRANATE SEEDS DRYING UNIT USING INFRARED / HOT AIR DRYER

Document Type : Original Article

Author

Assist. Prof., Products Processing Eng. Dept., Fac. of Ag. Eng., Al-Azhar U., Cairo, Egypt.

Abstract

In the present study combined infrared and hot air dryer to dry a thin layer of pomegranate seeds. Three different levels of infrared power, namely: 200, 250 and 300 W and three different exposure distance "the distance between infrared heater and samples" of dying are 20, 15 and 10 cm with air temperature 40 oC and air velocity 1.5 m/s were studied. Drying time as affected by infrared power and exposure distance, compatibility of experimental data to some drying models, effective diffusivity "Deff", rehydration and cost analysis were also studied. The results show that the drying time decreased with increasing infrared power and decreasing exposure distance. Midilli et al model showed the best fitness to experimental data with average R2 0.9972. The maximum values of Deff were recorded at highest infrared power 300 W. The rehydration ratios ranged between 0.55 to 1.16 under various drying conditions.   

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Main Subjects


Agricultural Statistics (2018). Ministry of Agricultural and land Reclamation, second volume.
Ahmed, N., Singh, J., Chauhan, H., Anjum, P. G. A., and Kour, H. (2013). Different drying methods: their applications and recent advances. International Journal of food nutrition and safety, 4(1), 34-42
Akpinar E.K. (2010)Drying of mint leaves in a solar dryer and under open sun: Modelling, performance analyses. Energ. Convers. Manage. 51: 2407-2418
Al-Muhtasab AH, Harahsheh M, Hararah M, and Magee TRA. (2010) Drying characteristics and quality change of unutilized-protein rich-tomato pomace with and without osmotic pre-treatment. Ind. Crop. Prod. 31: 171-177
ASAE (2002). Moisture measurement-pomegranate Agric. Eng. Yearbook 5410Dec92St. Joseph  Michigan, :477-478.
Awady, M. N., Yehia, I., Ebaid, M. T., and Arif, E. M. (2003). Development and theory of rice cleaner for reduced impurities and losses. Misr J. Ag. Eng, 20(4), 53-68.
Bae, S. H., Nam, J. H., Song, C. S., and Kim, C. J. (2010). A numerical model for freeze drying processes with infrared radiation heating. Numerical Heat Transfer, Part A: Applications, 58(5), 333-355.
Corzo O, Bracho N, Pereira A, Vásquez A. and Weibull .(2008)distribution for modelling air drying of coroba slices. LWT-Food Sci. Technol. 41: 2023-2028
Dhinesh, K. V., and Ramasamy, D. (2016). Pomegranate processing and value addition. Journal of Food Processing and Technology, 7(3).‏
Doymaz, İ. (2012). Drying of pomegranate seeds using infrared radiation. Food Science and Biotechnology, 21(5), 1269-1275.‏
Inyang, U. E., Oboh, I. O., and Etuk, B. R. (2018). Kinetic models for drying techniques—food materials. Advances in Chemical Engineering and Science, 8(02), 27
More VR., Kapse BM., Kadam AR., and Pimpalpalle LV., (2017)  Studies on drying of pomegranate arils for preparation of Anardana International Journal of Chemical Studies  5(3): 724-728
Ojediran J.O, and  Raji A.O.  (2010) Thin layer drying of millet and effect of temperature on drying characteristics. Int. Food Res. J. 17: 1095-1106
Pawar, S. B., and Pratape, V. M. (2017). Fundamentals of infrared heating and its application in drying of food materials: a review. Journal of food process engineering, 40(1), e12308
Riadh, M. H., Ahmad, S. A. B., Marhaban, M. H., and Soh, A. C. (2015). Infrared heating in food drying: An overview. Drying Technology, 33(3), 322-335.
Roberts J.S., Kidd DR, and Padilla-Zakour, O. (2008) Drying kinetics of grape seeds. J. Food Eng. 89: 460-465
Sufer, O., and Palazoglu, T. K. (2019). A study on hot-air drying of pomegranate Kinetics of dehydration, rehydration and effects on bioactive compounds. Journal Of Thermal Analysis And Calorimetry, 137(6), 1981-1990.
Tayel, S. A., Ghanem, T. H., El-Messery, A. A., and Badr, M. M. (2012). Modelling A Microwave/Convection Dryer For Drying Of Potato Slices. Misr J. Ag. Eng, 29(4), 1377-1398
Vega,A.,Fito,P., and Lemus,R.(2007) Mathematical molding of hat- air drying kinetics of red bell pepper ( Var.lamuyo).Journal of food Engineering, 79 (4) 1460 – 1466
ViudaMartos, M., FernándezLópez, J., and PérezÁlvarez, J. A. (2010). Pomegranate and its many functional components as related to human health: a review. Comprehensive Reviews in Food Science and Food Safety, 9(6), 635-654.
 Wang Z, Sun J, Liao X, Chen F, Zhao G, and Wu J, Hu X. (2007) Mathematical modeling on hot air drying of thin layer apple pomace. Food Res. Int. 40: 39-46