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Conservation of Moroccan truffle (Terfezia boudieri) using solar drying method

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  • Tagnamas, Zakaria
  • Bahammou, Younes
  • Kouhila, Mounir
  • Hilali, Soukaina
  • Idlimam, Ali
  • Lamharrar, Abdelkader

Abstract

This work aims to investigate the drying behavior of Terfezia Boudieri truffle in a thin layer convective solar dryer. In this work, different variables were taken into account. The slice thickness was 3, 6, 8 and 10 mm, the drying temperatures were 50, 60, 70 and 80 °C and air flow rates were 0.0416 and 0.0833 m3/s. The experimental data were analyzed in order to determine the drying kinetics. The drying curves were described by different empirical and physical drying models in thin layer. According to the results Midilli-Kucuk model was found to be the most suitable for fitting the drying curves of Moroccan truffle with a correlation coefficient (r) equal to 0.9981, chi square (χ2) of 4.044 × 10−3 and mean bias error (P) of 1.4074%. Midilli-Kucuk parameters were correlated to the drying air temperature. The diffusivity coefficient was also determined. This coefficients varied in the range of 7.9705 × 10−10 and 1.3720 × 10−9 m2/s. The activation energy was also calculated, according to Arrhenius equation, and was achieved 76.37 kJ/mol.

Suggested Citation

  • Tagnamas, Zakaria & Bahammou, Younes & Kouhila, Mounir & Hilali, Soukaina & Idlimam, Ali & Lamharrar, Abdelkader, 2020. "Conservation of Moroccan truffle (Terfezia boudieri) using solar drying method," Renewable Energy, Elsevier, vol. 146(C), pages 16-24.
    • Handle: RePEc:eee:renene:v:146:y:2020:i:c:p:16-24
    DOI: 10.1016/j.renene.2019.06.107
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    References listed on IDEAS

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    1. Amer, Baher M.A. & Gottschalk, Klaus & Hossain, M.A., 2018. "Integrated hybrid solar drying system and its drying kinetics of chamomile," Renewable Energy, Elsevier, vol. 121(C), pages 539-547.
    2. Mghazli, Safa & Ouhammou, Mourad & Hidar, Nadia & Lahnine, Lamyae & Idlimam, Ali & Mahrouz, Mostafa, 2017. "Drying characteristics and kinetics solar drying of Moroccan rosemary leaves," Renewable Energy, Elsevier, vol. 108(C), pages 303-310.
    3. Poblete, Rodrigo & Cortes, Ernesto & Macchiavello, Juan & Bakit, José, 2018. "Factors influencing solar drying performance of the red algae Gracilaria chilensis," Renewable Energy, Elsevier, vol. 126(C), pages 978-986.
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    4. Gilago, Mulatu C. & V.P., Chandramohan, 2022. "Performance parameters evaluation and comparison of passive and active indirect type solar dryers supported by phase change material during drying ivy gourd," Energy, Elsevier, vol. 252(C).
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