Drying Kinetics and Mathematical Modeling of Algerian Red-Hot Pepper (Capsicum Annuum L.) Utilizing Microwave Radiation
Background: Drying is considered a good practice to preserve fruits and vegetables from spoilage and microbial growth. So, their use can be extended after the harvest periods. Capsicum annuum L. is a popular spice, but it cannot be stored in its fresh state due to its high moisture content. This is where the importance of microwave drying as a developed method lies.
Aims: This study focuses on the characteristics of drying kinetics of red-hot peppers using a microwave oven under various microwave powers to analyze drying parameters. Drying models help to better understand the drying behavior.
Methods: Different powers were used in the drying process. Moisture losses in the samples were recorded periodically to their equilibrium moisture. Drying parameters were calculated using mathematical equations. The experimental data were fitted to sixteen thin-layer models.
Results: The characteristics of drying kinetics were determined microwave drying time decreased notably from 80 to 24 with the increasing power from 200 to 1200 in two main stages a warming-up and a falling-rate phases. Drying rates ( ) increased progressively during the initial drying stage (0.1152 and 0.4012 for 200 and 1200 , respectively) then decreased substantially during the final stage. A third-order polynomial relationship was found to correlate the effective moisture diffusivity with moisture content. The effective moisture diffusivity ( increased significantly with microwave power with the decrease in the moisture content (2.83 (×10-8) ± 0.1834 and 12.9 (×10-8) ± 0.2637 for 200 and 1200 . respectively). The calculated energy activation was found 23.48 ± 0.987 . The least specific energy consumption ( ) increased with increasing powers (1.55 (×10+8) ± 0.01 and 2.76 (×10+8) ± 0.0153 H2O for 200 and 1200 , respectively). Conversely to the energy efficiency values ( ) (14.55 (×10-4) ± 0.0881 and 7.84 (×10-4) ± 0.0078 % for 200 and 1200 ). The Hii model was found to be the best fit to describe microwave drying kinetics.
Conclusions: Microwave drying has several advantages, such as drying time reduction and less energy consumption, while achieving higher drying efficiency at a moderate power level. Therefore, this innovative process is recommended in industrial food processing.
Keywords
How to Cite
Abano, E. E. (2016). Kinetics and quality of microwave‐assisted drying of mango (Mangifera indica). International Journal of Food Science, 2016(1), 2037029. https://doi.org/10.1155/2016/2037029
Abbaspour-Gilandeh, Y., Kaveh, M., Fatemi, H., Khalife, E., Witrowa-Rajchert, D., & Nowacka, M. (2021). Effect of pretreatments on convective and infrared drying kinetics, energy consumption and quality of terebinth. Applied Sciences, 11(16), 7672. https://doi.org/10.3390/app11167672
Abderrahim, K. A., Remini, H., Dahmoune, F., Mouhoubi, K., Berkani, F., Abbou, A., Aoun, O., Dairi, S., Belbahi, A., & Kadri, N. (2022). Influence of convective and microwave drying on Algerian blood orange slices: Drying kinetics and characteristics, modeling, and drying energetics. Journal of Food Process Engineering, 45(12), e14176. https://doi.org/10.1111/jfpe.14176
Al-Harahsheh, M., Ala’a, H., & Magee, T. (2009). Microwave drying kinetics of tomato pomace: Effect of osmotic dehydration. Chemical Engineering and Processing: Process Intensification, 48(1), 524-531. https://doi.org/10.1016/j.cep.2008.06.010
Alibas, I. (2014). Mathematical modeling of microwave dried celery leaves and determination of the effective moisture diffusivities and activation energy. Food Science and Technology, 34, 394-401. https://doi.org/10.1590/S0101-20612014005000030
Alqahtani, N., & Fikry, M. (2026). Impact of microwave pretreatment on drying kinetics, mass transfer and thermodynamic characteristics of Barhi dates during drying process. Scientific Reports. https://doi.org/10.1038/s41598-026-39727-6
Alvi, T., Khan, M. K. I., Maan, A. A., Rizwan, M., Aamir, M., Saeed, F., Ateeq, H., Raza, M. Q., Afzaal, M., & Shah, M. A. (2023). Microwave–vacuum extraction cum drying of tomato slices: Optimization and functional characterization. Food Science & Nutrition, 11(7), 4263-4274. https://doi.org/10.1002/fsn3.3352
Amarasinghe, B., Aberathna, A., & Aberathna, K. (2018). Kinetics and mathematical modeling of microwave drying of Sri Lankan black pepper (piper nigrum). International Journal of Environmental & Agriculture Research (IJOEAR), 4(2), 6-13. https://doi.org/10.11591/ijeecs.v30.i3.pp1407-1419
Anjaneyulu, A., & Sharangi, A. (2022). Study the Drying Behavior of Red Pepper (Capsicum annuum L.). International Journal of Bio-resource and Stress Management, 13(8), 822-829.
AOAC. (2000). Official methods of analysis of the Association of Official Analytical Chemists. Methods 934.06 (AOAC International, Ed. 17th ed., Vol. II). The Association of Official Analytical Chemists. Gaithersburg, MD, USA. pp.1-37. ISBN: 0935584676, 9780935584677
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