Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 402117
Title Evaluation of the free volume theory to predict moisture transport and quality changes during broccoli drying
Author(s) Jin, X.; Sman, R.G.M. van der; Boxtel, A.J.B. van
Event 17th International Drying Symposium, IDS2010, Magdeburg, Germany, 3 - 6 October, 2010, 2010-10-03/2010-10-06
Department(s) Systems and Control Group
Food Process Engineering
FBR Food Technology
Publication type Contribution in proceedings
Publication year 2010
Abstract Abstract: Moisture diffusion in porous broccoli florets and stalks is modeled by using the free volume and Maxwell-Eucken theories. These theories are based on the mobility of water and show the variation of the effective diffusion coefficient for a wide range of temperatures and moisture content of the product during drying. Mass and heat transport, shrinkage and vitamin C degradation during drying of broccoli are simulated by a spatial model. The effective diffusion coefficient varies strongly with product moisture content and temperature. Vitamin C degradation is strong at oisture contents below 4 kg water per kg dry matter.
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