MODELING SOLID-LIQUID EXTRACTION KINETICS OF TRANS-RESVERATROL AND TRANS-e-VINIFERIN FROM GRAPE CANE

2013-02-01
Karacabey, Erkan
Bayındırlı, Levent A.
ARTIK, NEVZAT
Mazza, Giuseppe
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
318
views
0
downloads
Solidliquid extraction of resveratrol and viniferin from grape cane samples was described by using first-order kinetic model, Peleg's model, two-site kinetic model and modified Gompertz equation. Goodness of fits of the models were evaluated by comparing the adjusted determination coefficient and root mean square error and mean percentage error values. Although the two-site kinetic model with four parameters described the data better, Peleg's model, with only two parameters, could explain the data with a slight loss of goodness of fit. The modified Gompertz equation showed the worst performance for describing the solidliquid extraction of stilbenes. PRACTICAL APPLICATIONS The present study introduces the comparison of well-known models applied to explain extraction kinetic of stilbene compounds of grape cane and to determine the best model with its justifications. Mathematical models provide information about the system and/or process to which they are applied. In design and/or process application stages, any information about that process and/or system has crucial importance because in the decision stages, this know-how helps the designers and researchers find the best design parameters and the most effective process conditions to optimize purposes. Mathematical models are accepted as the most economical ways for these purposes.
Food Science, General Chemical Engineering
https://hdl.handle.net/11511/57627
JOURNAL OF FOOD PROCESS ENGINEERING
Department of Food Engineering, Article

Suggestions

Quantum chemical simulation of nitric oxide reduction by ammonia (scr reaction) on v2o5 / tio2 catalyst surface
Soyer, Sezen; Önal, Işıl; Department of Chemical Engineering (2005)
The reaction mechanism for the selective catalytic reduction (SCR) of nitric oxide by ammonia on (010) V2O5 surface represented by a V2O9H8 cluster was simulated by density functional theory (DFT) calculations. The computations indicated that SCR reaction consisted of three main parts. In the first part ammonia activation on Brønsted acidic V-OH site as NH4+ species by a nonactivated process takes place. The second part includes the interaction of NO with pre-adsorbed NH4 + species to eventually form nitros...
Comparison of Fenitrothion and Trifluralin Adsorption on Organo-Zeolites and Activated Carbon. Part II: Thermodynamic Parameters and the Suitability of the Kinetic Models of Pesticide Adsorption
LÜLE ŞENÖZ, Güzide Meltem; Atalay, Mustafa Ümit (Informa UK Limited, 2014-07-04)
The suitability of two kinetic models and the thermodynamic parameters of pesticide adsorption were investigated based on obtained data of previous studies. Kinetic evaluation indicated that the pesticides adsorption on adsorbents followed the pseudo-second-order model. Gibbs free energy (Delta G degrees), enthalpy (Delta H degrees), and entropy (Delta S degrees) were calculated for thermodynamic parameters by using linearized Arrhenius equation. The results indicated that the sorption process of fenitrothi...
Predicting drying behavior of spaghetti in a continuous industrial dryer with the models determined in a lab scale batch system
Kucuk, R; Ozilgen, M (Wiley, 1997-08-01)
In the first stage of this study experimental data were obtained by using a lab scale batch type dryer, operating under various constant temperature/constant relative humidity combinations; then a mathematical model was determined for the effective diffusivity of moisture in spaghetti. In the second stage of the study the model obtained in the lab scale batch type dryer was used to calculate the moisture content of the spaghetti leaving continuous industrial scale dryer, and its success was tested by compar...
ASSESSMENT OF THE EXPONENTIAL MODEL TO SOUR CHERRY JUICE FILTRATIONS
Şahin, Serpil (Wiley, 1991-01-01)
De La Garza and Boulton's "Exponential model" of wine filtrations simulated the data satisfactorily in the cake filtration of sour cherry juice. There was an inverse relation between the filtration rate and the resistance. Increase in the amount of precoating decreased the filtration rate. However, increase in filter aid dose increased the filtration rate. Further increase in filter aid dose and pressure over some limiting value gave no further increases infiltration rate.
Mathematical modeling of fluidized bed combustors with radiation model
Alagöz, Düriye Ece; Selçuk, Nevin; Department of Chemical Engineering (2006)
Simultaneous solution of the conservation equations for energy and chemical species in conjunction with radiative transfer equation was carried out by coupling a previously developed and tested system model of fluidized bed combustion (FBC) to an existing radiation model. The predictive accuracy of the coupled code was assessed by applying it to 0.3 MWt METU Atmospheric Bubbling Fluidized Bed Combustor (ABFBC) Test Rig burning lignite in its own ash and comparing its predictions with the measured temperatur...
Citation Formats
E. Karacabey, L. A. Bayındırlı, N. ARTIK, and G. Mazza, “MODELING SOLID-LIQUID EXTRACTION KINETICS OF TRANS-RESVERATROL AND TRANS-e-VINIFERIN FROM GRAPE CANE,” JOURNAL OF FOOD PROCESS ENGINEERING, pp. 103–112, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57627.
METU IIS - Integrated Information Service open@metu.edu.tr