Application of Peleg model on mass transfer kinetics during osmotic dehydratation of pear cubes in sucrose solution
Објеката
- Тип
- Рад у часопису
- Верзија рада
- објављена верзија
- Језик
- енглески
- Креатор
- Vesna Pavelkić, Tanja Brdarić, Marija Petrović, Gavrilo Šekularac, Milica Košević, Lato Pezo, Marija Ilić
- Извор
- Chemical Industry and Chemical Engineering Quarterly
- Датум издавања
- 2015
- Сажетак
- The applicability of Peleg model was investigated for predicting mass transfer kinetics during the osmotic dehydration (OD) process of pears, at different concentrations (40, 60 and 70%, w/w) and temperatures (20, 35 and 50 °C) of sucrose solution. Increase in sucrose solution concentration resulted in higher water loss (WL) and solid gain (SG) values through the osmotic treatment period. After 360 min of osmotic treatment of pears, WL ranged from 23.71 to 31.68% at 20 °C, from 24.80 to 40.38% at 35 °C and from 33.30 to 52.07% at 50 °C of initial weight of pears. The increase of dry mass of the samples, SG, after 360 min of osmotic treatment ranged from 3.02 to 6.68% at 20 °C, from 4.15 to 7.71% at 35 °C and from 5.00 to 8.92% at 50 °C. Peleg’s rate constants, k1 WL and k1 SG , decreased with increasing temperature, as well as decreased with increasing concentration of osmotic solution at constant temperature. Both capacity constants k2 WL and k2 SG also exhibited the inverse relationship between capacity constant and temperature, as well as concentration of the osmotic solution. Peleg’s rate constants for WL and SG at all temperatures followed an Arrhenius type relationship. The predicted equilibrium values were very close to experimental ones, which was confirmed with high coefficients of determination and by the residual analysis.
- том
- 21
- Број
- 4
- почетак странице
- 485
- крај странице
- 492
- doi
- 10.2298/CICEQ141014004P
- issn
- 1451-9372
- Subject
- осмотска дехидрација, крушкa, кинетика, температурни ефекат, Пелег модел
- osmotic dehydration, pear, kinetics, temperature effect, Peleg model
- Шира категорија рада
- M20
- Ужа категорија рада
- М23
- Права
- Затворени приступ
- Лиценца
- All rights reserved
- Формат
Vesna Pavelkić, Tanja Brdarić, Marija Petrović, Gavrilo Šekularac, Milica Košević, Lato Pezo, Marija Ilić. "Application of Peleg model on mass transfer kinetics during osmotic dehydratation of pear cubes in sucrose solution" in Chemical Industry and Chemical Engineering Quarterly (2015). https://doi.org/10.2298/CICEQ141014004P
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