Volume 10, Issue 38 (2013)
FSCT 2013, 10(38): 113-126 |
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Effect of microwave pretreatment on drying time of pomegranate arils and Simulation model coefficients. FSCT 2013; 10 (38) :113-126
URL: http://fsct.modares.ac.ir/article-7-8372-en.html
URL: http://fsct.modares.ac.ir/article-7-8372-en.html
Abstract: (7700 Views)
Ten semi-theoretical and empirical models were fitted to the experimental data to evaluate and select the best model for thin-layer drying of pomegranate arils. Experiments were conducted at six temperature levels of 45, 50, 55, 60, 65 and 70 °C and three levels of air velocity (0.5, 1 and 1.5 m/s). Microwave pretreatments were used for samples and the results were compared to those of control (no pretreatments). Regression analysis of mathematical models showed that the Midilli et al. model fitted best to the measured data. Midilli et al. model coefficients increased with increasing temperature and air velocity. Also, the results of statistical analyses showed that pretreatment of pomegranate arils significantly reduces drying time.
Received: 2010/08/8 | Accepted: 2010/11/8 | Published: 2013/02/5
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