Moisture diffusivity in high oleic sunflower seeds and kernels
Moisture diffusivities in high oleic seeds and kernels were obtained from experimental thin layer drying rates in the range of 25-90°C air temperature and 4.2-33.5% initial moisture content (d.b.). Moisture diffusivity back-calculated from Ficks second law of diffusion var- ied between 0.85.10⁻¹⁰ an...
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| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2010
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/123637 |
| Aporte de: |
| Sumario: | Moisture diffusivities in high oleic seeds and kernels were obtained from experimental thin layer drying rates in the range of 25-90°C air temperature and 4.2-33.5% initial moisture content (d.b.). Moisture diffusivity back-calculated from Ficks second law of diffusion var- ied between 0.85.10⁻¹⁰ and 7.26.10⁻¹⁰ m²/s for seeds and between 0.37.10⁻¹⁰ and 2.39.10⁻¹⁰ m²/s for kernels. The Arrhenius activation energy for seeds and kernels resulted 31 and 24 kJ/mol, respectively. A new model based on the kinetic parameter of Page equation was proposed as a simple tool to predict water diffusion in high oleic sunflower seeds and kernelss. |
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