Aplicación del modelo de Peleg en la deshidratación osmótica al vacío de Smallanthus sonchifolius.

• Autores: Oblitas, J., Cieza-Rimarachin, Y.
• Formato: objeto de conferencia
• Fecha de Publicación: 2022
• Institución: Universidad Nacional de Cajamarca
• Repositorio: UNC-Institucional
• Lenguaje: español
• OAI Identifier: oai:repositorio.unc.edu.pe:20.500.14074/9590
• Enlace del recurso: http://hdl.handle.net/20.500.14074/9590; http://dx.doi.org/10.18687/LACCEI2022.1.1.70
• Nivel de acceso: acceso abierto
• Materia: kinetics; osmotic dehydration; Peleg model; yacon; https://purl.org/pe-repo/ocde/ford#2.11.01

The applicability of Peleg model to predict mass transfer kinetics during the osmotic dehydration (OD) process of yacon was investigated by using 3 different concentrations of sucrose solution, 3 vacuum pressures, 3 temperatures and 9 times. When analyzing the effect on solids gain, it shows a linear effect over time, while the other parameters show quadratic effects. Similarly, the loss of water continues to have a linear trend as a function of time, while for the other parameters there is a decreasing behavior as temperature, concentration and pressure increase. The equilibrium values predicted by the Peleg equation were very close to the experimental ones, with values of R2>0.98. Regarding the Peleg's rate constants, the results showed that that K1 was significantly (p<0.05) affected as the concentration of … and the temperature were increased. With regard to K2, this constant was significantly affected (p<0.05) by increasing the values of the three studied parameters, probably due to the phenomena of cellular relation because of the effect of pressure with the consequent increase of the volume.