The Study of Dehydration and Rehydration Kinetics of Phaseolus Vulgaris

In this study, the green beans supplied from a supermarket in Istanbul have firstly been sun-dried, and then rehydration tests of these dried beans have been performed at temperatures of 25 oC and 45 oC. Wang, Singh, Lewis and Midilli models have been used to examine the drying kinetics of the beans; Peleg, Exponential and First Order Kinetics models have been used in order to examine rehydration kinetics. The closest results for the experimental data have been provided with Midilli model for dehydration, and Peleg model for rehydration. Regression analysis is used in the MathCad program. The regression coefficient (R2) is taken as the main criterion for choosing the equation that defines the drying curves of the products. In addition, the suitability of modeling the estimated standard error (RMSE) and chi-square (χ2) values was also determined. Standard deviations between experimental and model equations have been shown to allow us to defer for the appropriate model.

Keywords: Dehydration, Rehydration, Phaseolus Vulgaris, Modelling kinetic, regression analysis

In this study, the green beans supplied from a supermarket in Istanbul have firstly been sun-dried, and then rehydration tests of these dried beans have been performed at temperatures of 25 oC and 45 oC. Wang, Singh, Lewis and Midilli models have been used to examine the drying kinetics of the beans; Peleg, Exponential and First Order Kinetics models have been used in order to examine rehydration kinetics. The closest results for the experimental data have been provided with Midilli model for dehydration, and Peleg model for rehydration. Regression analysis is used in the MathCad program. The regression coefficient (R2) is taken as the main criterion for choosing the equation that defines the drying curves of the products. In addition, the suitability of modeling the estimated standard error (RMSE) and chi-square (χ2) values was also determined. Standard deviations between experimental and model equations have been shown to allow us to defer for the appropriate model.

Anahtar Kelimeler: Dehydration, Rehydration, Phaseolus Vulgaris, Modelling kinetic, regression analysis

Yalçın, Z. G., Çorbacıoğlu, B. D., Aydoğmuş, E. & Dağ, M. (2018). The Study of Dehydration and Rehydration Kinetics of Phaseolus Vulgaris. Journal of Current Researches on Engineering, Science and Technology, 4 (1), 1-18.