Model of the solutes transfer during osmotic dehydration of vegetal matrices: a proposal

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Abstract

Osmotic dehydration of apple was modeled considering the mechanisms involved in the solutes transfer within the plant matrix: impregnation and diffusion. The model mathematical writing includes the impregnation layer thickness, the diffusion thickness, a water bulk flow and the convective resistance. Apple cylinders were dehydrated at 30, 50 ° C and 30, 50 ° Brix and a motion of 0.15 m/s. The Reynolds number was of 250 for 30°C-30°Bx and 500 for 50°C-50°Bx. Schmidt numbers was of 4000 for 30 ° C-30 ° Bx and 4200 for 50 ° C-50 ° Bx.
Original languageSpanish (Mexico)
Pages (from-to)277-282
Number of pages6
JournalProceedings of 21st International Drying Symposium. 978-84-9048-688-7
StatePublished - 7 Sep 2018

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