Comparative quality assessment of different drying procedures for plum fruits (Prunus domestica L.) Akhijahani H., Arabhosseini A., Kianmehr M.H. (2017): Comparative quality assessment of different drying procedures for plum fruits (Prunus domestica L.). Czech J. Food Sci., 35: 449-455.
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Different drying methods for plum fruits were compared in this case study. Samples were dried at a temperature of 70°C using the method of hot air drying as well using hybrid solar drying at three levels of air velocity (0.5, 1, and 2 m/s) and open sun drying. The dried samples were then compared on the basis of changes in colour, shrinkage and rehydration. The effect of air velocity on colour change was significant (P < 0.05) at the three different levels (0.5, 1, and 2 m/s), whereas effects on shrinkage and rehydration ratio were not significant (P < 0.05). The best conditions for plum drying with respect to values of colour change, shrinkage, rehydration ratio and the drying costs were obtained for the plums dried using a hybrid solar dryer at an air velocity of 1 m/s.
Chunthaworn S., Achariyaviriya S., Achariyaviriya A., Namsanguan K. (2012): Color kinetics of longan flesh drying at high temperature. Procedia Engineering, 32, 104-111
Chutintrasri B., Noomhorm A. (2007): Color degradation kinetics of pineapple puree during thermal processing. Lebensmittel-Wissenschaft & Technologie, 40: 300–306.
Cunningham S.E., Mcminn W.A.M., Magee T.R.A., Richardson P.S. (2008): Experimental study of rehydration kinetics of potato cylinders. Food and Bioproducts Processing, 86, 15-24
Demirhan Elçin, Özbek Belma (2009): Color Change Kinetics of Microwave-Dried Basil. Drying Technology, 27, 156-166
Doymaz İbrahim (2007): Influence of pretreatment solution on the drying of sour cherry. Journal of Food Engineering, 78, 591-596
García-Segovia P., Andrés-Bello A., Martínez-Monzó J. (2011): Rehydration of air-dried Shiitake mushroom (Lentinus edodes) caps: Comparison of conventional and vacuum water immersion processes. LWT - Food Science and Technology, 44, 480-488
Ghasemkhani Hamid, Keyhani Alireza, Aghbashlo Mortaza, Rafiee Shahin, Mujumdar Arun S. (2016): Improving exergetic performance parameters of a rotating-tray air dryer via a simple heat exchanger. Applied Thermal Engineering, 94, 13-23
Goula Athanasia M., Adamopoulos Konstantinos G. (2009): Modeling the Rehydration Process of Dried Tomato. Drying Technology, 27, 1078-1088
Jokić S., Mujić I., Martinov M., Velić D., Bilić M., Lukinac J. (2009): Influence of drying procedure on colour and rehydration characteristic of wild asparagus. Czech Journal of Food Sciences, 27: 171–177.
Kant Karunesh, Shukla A., Sharma Atul, Kumar Anil, Jain Anand (2016): Thermal energy storage based solar drying systems: A review. Innovative Food Science & Emerging Technologies, 34, 86-99
Krokida M.K, Marinos-Kouris D (2003): Rehydration kinetics of dehydrated products. Journal of Food Engineering, 57, 1-7
Lozano J.E., Ibarz A. (1997): Colour changes in concentrated fruit pulp during heating at high temperatures. Journal of Food Engineering, 31, 365-373
Maskan Medeni (2001): Drying, shrinkage and rehydration characteristics of kiwifruits during hot air and microwave drying. Journal of Food Engineering, 48, 177-182
Maldonado S., Arnau E., Bertuzzi M.A. (2010): Effect of temperature and pretreatment on water diffusion during rehydration of dehydrated mangoes. Journal of Food Engineering, 96, 333-341
Nadian Mohammad Hossein, Rafiee Shahin, Aghbashlo Mortaza, Hosseinpour Soleiman, Mohtasebi Seyed Saeid (2015): Continuous real-time monitoring and neural network modeling of apple slices color changes during hot air drying. Food and Bioproducts Processing, 94, 263-274
Nikjooy S., Jahanshahi S.S. (2014): Effect of hot-air drying conditions on the quality of rhubarb (Rheum ribes L.). International Journal of Agriculture and Crop Science, 7: 230–236.
Samimi-Akhijahani H. (2016): Design, construction and evaluation of hybrid solar dryer using fluid circulation. [Doctoral Thesis]. Tehran, University of Tehran.
Samimi Akhijani H., Arabhosseini A., Kianmehr M.H. (2016): Effective moisture diffusivity during hot air solar drying of tomato slices. Research in Agricultural Engineering, 62, 15-23
Shekofteh M., Eskandari-Cherati F., Kamyab S., Hosseinpor Y. (2012): Study of shrinkage of potato sheets during drying in thin-layer dryer. Research Journal of Applied Science Engineering Technology, 4: 2677–2681.
Taiwo K.A., Adeyemi O. (2009): Influence of blanching on the drying and rehydration of banana slices. African Journal of Food Science, 3: 307–315.
Vega-Gálvez Antonio, Notte-Cuello Eduardo, Lemus-Mondaca Roberto, Zura Liliana, Miranda Margarita (2009): Mathematical modelling of mass transfer during rehydration process of Aloe vera (Aloe barbadensis Miller). Food and Bioproducts Processing, 87, 254-260
Wang N., Brennan J.G. (1995): A mathematical model of simultaneous heat and moisture transfer during drying of potato. Journal of Food Engineering, 24, 47-60
Ziotis N., Papadas T. (2011): Supply of money and food prices: the case of Greece. Agricultural Economics Review, 12: 36–44.
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