Drying kinetics and activation energy for solar drying of ginger slices

Solar drying of ginger

Authors

  • N C Shahi Department of Post Harvest Process and Food Engineering, G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
  • Deepika Kohli Department of Processing and Food Engineering, Maharana Pratap University of Agriculture and Technology, Udaipur, India
  • Pradeep Kumar Department of Post Harvest Process and Food Engineering, G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
  • Mohit Tamta Department of Post Harvest Process and Food Engineering, G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
  • Pooja Arya Department of Post Harvest Process and Food Engineering, G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India

DOI:

https://doi.org/10.25081/josac.2022.v31.i1.7653

Keywords:

activation energy, drying kinetics, effective moisture diffusivity, Zingiber officinale

Abstract

Drying is one of the oldest and most important preservation method for food in which by reducing the water activity the shelf life can be increased. In the present investigation, fresh ginger was pretreated in calcium oxide solution at different concentrations. Solar drying at three temperature levels viz., 55, 65 and 75o C at loading densities of 0.147 g/cm2, 0.176 g/cm2, 0.206 g/cm2 respectively were used for the investigation. Results of study revealed that the total time required for ginger drying in solar dryer curtails with rise in drying air temperature and increased as loading density increased. The activation energy was observed to be 20.45 kJ mol-1, 29.06 kJ mol-1 and 17.6 kJ mol-1 for 0.147 g/cm2, 0.176 g/cm2 and 0.206 g/cm2 loading density respectively. Also, the diffusivity increased with increase in temperature from 45 to 65 oC.

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Published

19-07-2022

How to Cite

Shahi, N. C., Kohli, D., Kumar, P., Tamta, M., & Arya, P. (2022). Drying kinetics and activation energy for solar drying of ginger slices: Solar drying of ginger. Journal of Spices and Aromatic Crops, 31(1), 15–24. https://doi.org/10.25081/josac.2022.v31.i1.7653

Issue

Vol 31 No 1 (2022): JUNE : Journal of Spices and Aromatic Crops

Section

Research Articles

Copyright (c) 2022 N C Shahi, Deepika Kohli, Pradeep Kumar, Mohit Tamta, Pooja Arya

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.