University of Tehran Press Iranian Journal of Biosystem Engineering 2008-4803 48 2 2017 07 23 Effect of different drying conditions on characteristics of powder density and adsorption of dried coriandrum Effect of different drying conditions on characteristics of powder density and adsorption of dried coriandrum 191 199 62461 10.22059/ijbse.2017.62461 FA Reza Tabatabaei Kolor Scientific member/Department of Mechanics of Biosystems Engineering, Faculty of Crop Engineering, Sari University of Agricultural Sciences and Natural Resources Journal Article 2016 05 07 Effects of temperatures (35, 45 and 55ºC), drying air rate (0.008, 0.016 and 0.024 m3 s-1) and with or without using heat pump in a solar dryer were investigated on adsorption percent, packed mass density and loosed mass density in a factorial test based on completely randomized design at three replications. Also, the results were compared with the traditional drying method. Results indicated that temperature, air rate, using heat pump and the interactions had significant effect (p<0.01) on adsorption percent of dried coriander samples and powder density. Also, the dried samples in heat-pump assisted solar dryer had better quality in comparison with the traditional dryer. The temperature of 55 ºC and air rate of 0.024 m3 s-1 resulted in better quality of the crop and it can be recommended as the best treatments for dried coriander. Effects of temperatures (35, 45 and 55ºC), drying air rate (0.008, 0.016 and 0.024 m3 s-1) and with or without using heat pump in a solar dryer were investigated on adsorption percent, packed mass density and loosed mass density in a factorial test based on completely randomized design at three replications. Also, the results were compared with the traditional drying method. Results indicated that temperature, air rate, using heat pump and the interactions had significant effect (p<0.01) on adsorption percent of dried coriander samples and powder density. Also, the dried samples in heat-pump assisted solar dryer had better quality in comparison with the traditional dryer. The temperature of 55 ºC and air rate of 0.024 m3 s-1 resulted in better quality of the crop and it can be recommended as the best treatments for dried coriander. https://ijbse.ut.ac.ir/article_62461_4caf7eff4668ae54a03541a922721215.pdf