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The moisture diffusivity and activation energy of three tilapia fish varieties were determined under convective drying process (CDP). A locally fabricated drying system was used for the experiment at 60, 90/60 and 90 oC drying air temperatures.The drying rate showed falling rate period for all the drying processes with no sign of constant rate period. The moisture diffusivity values which increased with the increase in drying air temperature varied from 7.821 x 10-11 to 4.591 x 10-10 m2/s. The predicted Arrhenius constant and activation energy were 2.221 x 10-10 m2/s and 23.79 kJ/mol respectively.
Tilapia fish, convective drying, moisture diffusivity, activation energy
[1] Komolafe CA, Ogunleye IO, Adejumo AOD. (2011). Design and fabrication of a convective fish dryer. The Pacific Journal of Science and Technology 12(1): 89-97.
[2] Clucas IJ. (1982). Fish handling, preservation and processing in the tropics, Part 2. Report of Tropical Product Institute, G145, vii +144. Tropical Institute, London, UK. pp. 3-9.
[3] Komolafe CA, Ogunleye IO, Adejumo AOD, Oladapo, MO. (2013). Effects of drying temperatures on the quality of three tilapia fish species. International Journal of Scientific Research and Management 1(12): 371-375.
[4] Aghbashlo M, Kianmehr MH, Samimi-Akhljahani H. (2008). Influence of drying conditions on the effective moisture diffusivity, energy of activation and energy consumption during the thin-layer drying of barberries fruit (Berberidaceae). Energy Conversion and Management 49: 2865–2871. https://doi.org/10.1016/j.enconman.2008.03.009
[5] Marinou-Kouris D, Maroulis ZB. (2006). Transport properties in the drying of solids. In A.S. Mujumdar ed. Handbook of industrial drying. Taylor and Francis Group LLC. London, UK.
[6] Dak M, Pareek NK. (2014). Effective moisture diffusivity of pomegranate arils undergoing microwave-vacuum drying. Journal of Food Engineering 122: 117-121. https://doi.org/10.1016/j.jfoodeng.2013.08.040
[7] Zogzas NP, Maroulis ZB, Marinous-Kouris D. (1994). Moisture diffusivity and activation methods of experimental determination: A review. Drying Technology 12(3): 483-515.
[8] Toujani M, Hassini L, Azzouz S, and Belghith A. (2012). Experimental study and Mathematical modelling of silverside fish convective drying. Journal of Food Processing and Preservation. ISSN: 1745-4549. https://doi.org/10.1111/j.1745-4549.2012.00729.x
[9] Chavan BR, Yakupitiyage A, Kumar S. (2008). Mathematical modelling of drying characteristics of Indian mackerel (Rastrilliger kangurta) in solar-biomass hybrid cabinet dryer. Drying Technology 26: 1552–1562. https://doi.org/10.1080/07373930802466872
[10] Mujaffar S, Sankat CK. (2015). Modelling the sun and solar cabinet drying behaviour of salted catfish (Arius sp.) slabs. First Nordic Baltic Drying Conference NBDC, Gdansk, Poland.
[11] Darvishi H, Azadbakht, M, Rezaeiasl A, Farhang, A. (2013). Drying characteristics of sardine fish dried with microwave heating. Journal of Saudi Society of Agricultural Science 12: 121-127. https://doi.org/10.1016/j.jssas.2012.09.002
[12] Akpinar EK, Toraman S. (2013). Estimation of the moisture diffusivity and activation energy in thin layer drying of ginger slices. International Journal of Nutrition and Food Engineering 7(6): 415-418.
[13] Taheri-Garavand A, Rafiee S, Keyhani A. (2011). Mathematical modelling of thin layer kinetics of tomato influence of air dryer conditions. International Transaction Journal of Engineering, Management, and Applied Science and Technologies 2(2): 148-160.
[14] Fiorentini C, Demarchi SM, Quintero Ruiz NA, Torrez Irigoyen RM, Giner SA. (2015). Arrhenius activation energy for water diffusion during drying of tomato leathers. The concept of characteristic product temperature. Biosystems Engineering 132: 39-46. https://doi.org/10.1016/j.biosystemseng.2015.02.004
[15] Doymaz I. (2011). Air drying characteristics, effective moisture diffusivity and activation energy of grapes leaves. Journal of Food Processing and Preservation. ISSN 1745-4449. https://doi.org/10.1111/j.1745-4549.2011.00557.x
[16] Meziane S, Mesbahi N. (2012). Determination of moisture diffusivity and activation energy in thin layer drying of olive pomace. International Journal of Food Engineering 8(3). https://doi.org/10.1515/1556-3758.2648
[17] Khanali M, Banisharif MA, Rafiee S. (2016). Modelling of moisture diffusivity, activation energy and energy consumption in fluidized bed drying of rough rice. Heat Mass Transfer. https://doi.org/10.1007/s00231-016-1763-z
[18] So’bah A, Mohd SA, Farah ST, Rosnah S, Siti Roha, AM. (2017). Effective moisture diffisivity and activation energy of rambutan seed under different drying methods to promote storage stability. Mechanical Engineering, Science and Technology. IOP Conf. Series. Material Science and Engineering 203: 012025.
[19] Hii CL, Ogugo JF. (2014). Effect of pre-treatment on the drying kinetics and product quality of star fruit slices. Journal of Engineering Science and Technology 9(1): 123-135.
[20] Ndukwu MC, Dirioha C, Abam FI, Ihediwa VE. (2017). Heat and mass transfer parameters in drying of cocoyam slices. Case Studies in Thermal Engineering 9: 62-71. https://doi.org/10.1016/j.csite.2016.12.003
[21] Balocco C, Petrone G. (2018). Heat and moisture transfer investigation of surface building materials. Mathematical Modelling of Engineering Problems 5(3): 146-152.
[22] Binici A, Kaya GK. (2017). Effect of brine and dry salting methods on the physicochemical and microbial quality of chub (Squalius cephalus Linnaeus, 1758. Food Science and Technology. https://doi.org/10.1590/1678-457x.15717
[23] Komolafe CA, Ogunleye IO, Adejumo AOD. (2011). The performance evaluation of a convective fish dryer. International Journal of Advances in Science and Technology 2(5): 58-64.
[24] Rahman MS. (2006). Drying of fish and seafood. In A.S. Mujumdar ed. Handbook of industrial drying. Taylor and Francis Group LLC. London, UK.
[25] Serafica E, Del MR. (2003). Design and qualitative performance of a hybrid solar-biomass powered dryer for fish. Proceedings of the World Renewable Energy Congress ix, National Engineering Centre, Diliman, Quezon City, Philippines 1101.
[26] AOAC (2000). Official methods of analysis. 17th ed. Association of Official Analytical Chemist. Washington, DC, USA.
[27] Dinani ST, Hamdami N, Shahedi M, Havet M. (2014). Mathematical modelling hot air/electrohydrodynamic (EHD) drying kinetics of mushroom slices, Energy conversion and Management 86: 70-80. https://doi.org/10.1016/j.enconman.2014.05.010
[28] El-Sebaii AA, Shalaby SM. (2012). Solar drying of agricultural products: A review. Renewable and Sustainable Energy Review 16: 27-43. https://doi.org/10.1016/j.rser.2011.07.134
[29] Doymaz I. (2005) Sun drying of Figures. An experimental study. Journal of Food Engineering 71: 403-407. https://doi.org/10.1016/j.jfoodeng.2004.11.003
[30] Fernando JAKM, Amarasinghe ADUS. (2016). Drying kinetics and mathematical modeling of hot air drying of coconut coir pith. Research 5: 807. https://doi.org/10.1186/s40064-016-2387-y
[31] Dina FS, Ambarita H, Napitupulu FH, Kawai H. (2015). Study of continuous solar dryer integrated with desiccant thermal storage for drying cocoa beans. Case Studies in Thermal Engineering 5: 32-40. https://doi.org/10.1016/j.csite.2014.11.003
[32] Crank J. (1975). The mathematics of diffusion. 2nd ed. Oxford University press, Oxford, UK.
[33] Clement AD, Emmanuel AN, Patrice K, Benjamin YK, (2009). Mathematical Modelling of Sun Drying Kinetics of Thin Layer Cocoa (Theobroma Cacao) Beans. Journal of Applied Sciences Research 5(9): 1110-1116.
[34] Zogzas NP, Maroulis ZB, Marinos-Kouris D. (1996). Moisture diffusivity data compilation in foodstuffs. Drying Technology 14: 2225–2253. https://doi.org/10.1080/07373939608917205
[35] Dongbang H, Pirompugd W. (2015). Experimental study on drying kinetics of anchovy using centrifugal fluidized bed techniques. Int J Agric and Biol Eng 8(5): 132-141. https://doi.org/10.3965/j.ijabe.20150805.1975
[36] Mirzaee E, Rafiee S, Keyhani A, Emam-Djomeh Z. 2009. Determination of moisture diffusivity and activation energy in the drying of apricots. RES. AGR. ENG 55(3): 114-120. https://doi.org/10.17221/8/2009-RAE
[37] Kohli D, Shahi NC, Kumar A. (2017). Drying kinetics and activation energy of Asparagus root (Asparagus racemosus wild) for different methods of drying. Current Research in Nutrition and Food Science 6(1): 191-202. https://doi.org/10.12944/CRNFSJ.6.1.22
[38] Troncoso E, Pedresch F. (2007). Modelling of textural changes during drying of potato slices. Journal of Food Engineering 82: 577-584. https://doi.org/10.1016/j.jfoodeng.2007.03.015
[39] Jain D, Pathare PB. (2007). Study the drying kinetics of open sun drying of fish. Journal of Food Engineering 78: 1315-1319. https://doi.org/10.1016/j.jfoodeng.2005.12.044
[40] Minaei S, Motevali A, Najafi G, Seyedi S. (2011). Influence of drying methods on activation energy, effective moisture diffusion and drying rate of pomegranate arils (Punica Granatum). Australian Journal of Crop Science AJCS 6(4): 584-591.