Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Effect of ultrasound on drying kinetics of El Henna leaves (Lawsonia inermis)
Said Bennaceur, Lyes Bennamoun, Antonio Mulet, Belkacem Draoui, Juan A. Cárcel

Last modified: 02-01-2019


In this work the influence of some process variable on drying rate of henna leaves was studied. For this reason, henna leaves were dried (1 m/s) with and without ultrasound application at three temperatures, 40, 50 and 60 °C. As can be expected, the higher the temperature the faster the drying process. Ultrasound application increase drying rate at every temperature tested. Drying kinetics were modeled by using different experimental models. Weibull model provided the best fit for henna leaves drying kinetics.

Keywords:Ultrasonic; Weibull model; henna leave;, temperature.


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