• A. Topete -Betancourt
  • J. D. Figueroa
  • E. Morales Sanchez
  • G. Arámbula-Villa
  • J. F. Pérez-Robles
Keywords: Fickian mechanism, Diffusion coefficient, Water release, Oil absorption, Tortilla chips


Simple equation Mt/M= Ktn is evaluated to describe the Fickian mechanism of oil absorption and water release during the frying of tortilla chips in nixtamalized samples with lime and without lime where Mt/M is the fractional solute absorption or release, and n is the diffusional exponent characteristic of the Fickian mechanism that changes with food physical and chemical properties. For the Fickian mechanism, the exponent (n) is ≤0.50, and non-Fickian is 0.5<n<1 for slabs. Moisture releases showed a Fickian mechanism form tortilla chips with lime (n = 0.5) due to water interaction with matrix components and non-Fickian for tortilla chips without lime (n = 0.6). Oil absorption showed a Fickian mechanism for nixtamalization with lime n = 0.4 and for nixtamalization without lime, one of n = 0.3. The larger water diffusion coefficient in the tortilla chip compared to that of oil diffusion indicates that water release and oil absorption during frying is not a simultaneous event. The behavior of the water and oil diffusion is an interesting topic that, in this study, was investigated using a practical equation with potential application in food processing.


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How to Cite
Topete -Betancourt, A., Figueroa, J., Morales Sanchez, E., Arámbula-Villa, G., & Pérez-Robles, J. (2019). EVALUATION OF THE MECHANISM OF OIL UPTAKE AND WATER LOSS DURING DEEP-FAT FRYING OF TORTILLA CHIPS. Revista Mexicana De Ingeniería Química, 19(1), 409-422. https://doi.org/10.24275/rmiq/Alim605
Food Engineering