Drying of Mint Leaves: Influence of the Process Temperature on Dehydration Parameters, Quality Attributes, and Energy Consumption
Publish Year: 1397
Type: Journal paper
Language: English
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Document National Code:
JR_JASTMO-21-1_007
Index date: 14 November 2023
Drying of Mint Leaves: Influence of the Process Temperature on Dehydration Parameters, Quality Attributes, and Energy Consumption abstract
In this work, to assess the temperature effect on dehydration parameters and physicochemical characteristics of mint leaves, the samples were dried at air temperatures of 40, 50 and 60°C and constant air flow rate of 1 m s-1. Energy consumption of the process was also studied. Fick’s second law was used to model mass transport in the leaves during the process. Moisture diffusivity and coefficient of mass transfer were determined to vary in the range of 5.09×10-9-1.73×10-8 m2 s-1 and 1.59×10-5-5.71×10-5 kgwater m-2 s-1, respectively. Both of the mass transfer parameters were increased with increasing temperature. Higher temperatures caused more total color change and destruction of both chlorophyll and carotenoids. While the rehydration capacity of the dried leaves increased, the specific consumed energy of the process diminished with increasing drying air temperature.
Drying of Mint Leaves: Influence of the Process Temperature on Dehydration Parameters, Quality Attributes, and Energy Consumption Keywords:
Drying of Mint Leaves: Influence of the Process Temperature on Dehydration Parameters, Quality Attributes, and Energy Consumption authors
M. Beigi
Department of Mechanical Engineering, Tiran Branch, Islamic Azad University, Tiran, Islamic Republic of Iran.
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