THE EFFECT OF DRYING AIR TEMPERATURE ON THE KINETICS AND QUALITY OF TABLE BEET (BETA VULGARIS)
DOI:
https://doi.org/10.5281/zenodo.19381284Abstract
This study investigated the drying of table beetroot (Beta vulgaris) using hot air at temperatures of 65, 70, and 75 °C. Key physicochemical characteristics of the raw material were determined, including moisture content, water activity, pH, and soluble solids content. The kinetics of moisture removal, changes in water activity, and the effect of temperature on product quality were studied. It was found that increasing air temperature leads to an increase in the drying rate and a decrease in the drying time. However, at higher temperatures, increased quality degradation is observed, including changes in color characteristics and the destruction of vitamin C. The obtained results allow us to determine optimal drying conditions that ensure a balance between process intensity and product quality preservation.
References
Ingle M., Tapre A., Katke S. Drying kinetics and mathematical modeling of beetroot // Journal of Pharmacognosy and Phytochemistry. 2022. Vol. 11, Issue 5. pp. 350–354.
Sousa E.P., Silva W.P., Gomes J.P. Empirical modeling of the drying kinetics of red beetroot (Beta vulgaris L.) // Foods. 2024. Vol. 13, Issue 17. 2784.
Šuput D., Lončar B., Pezo L. Optimization of osmotic dehydration of beetroot (Beta vulgaris) // Foods. 2024. Vol. 13. 11120589.
Krokida M.K., Maroulis Z.B. Quality changes during drying of food materials // Drying Technology. 2001. Vol. 19, Issue 3–4. pp. 575–589.
Boultif S., et al. Convective hot air drying kinetics of red beetroot in thin layers // Sustainable Engineering and Environmental Sciences. 2024. Vol. 2, Issue 1. pp. 15–23.
Amanda D.S., et al. Effect of drying time on physicochemical properties of beetroot // Journal of Science and Technology. 2024. Vol. 9, Issue 2. pp. 101–108.
Mugabi R., et al. Refractance window drying of beetroot: modelling and optimization // Food Engineering Journal. 2025. Vol. 5, Issue 1. pp. 45–53.
Chaudhary V., et al. Drying and rehydration characteristics of beetroot in tray dryer // Chemical Science Review and Letters. 2019. Vol. 8, Issue 29. pp. 245–252.
Figiel A. Drying kinetics and quality of beetroot dehydrated by combined methods // Journal of Food Engineering. 2010. Vol. 98, Issue 4. pp. 461–470.
Najafli M.R. et al. Investigation of heat and mass transfer during drying of agricultural products // International Journal of Heat and Technology. 2021. Vol. 39, Issue 2. pp. 555–562.
