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.

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Record number 431848
Title Anomalies in moisture transport during broccoli drying monitored by MRI?
Author(s) Jin, X.; Boxtel, A.J.B. van; Gerkema, E.; Vergeldt, F.J.; As, H. van; Straten, G. van; Boom, R.M.; Sman, R.G.M. van der
Source Faraday Discussions 158 (2012). - ISSN 1359-6640 - p. 65 - 75.
DOI https://doi.org/10.1039/C2FD20049J
Department(s) Biomass Refinery and Process Dynamics
Biophysics
Systems and Control Group
Food Process Engineering
FBR Food Technology
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) viscoelastic behavior - cooking - model - nmr - simulation - carrot - grain - food - meat
Abstract Magnetic resonance imaging (MRI) offers unique opportunities to monitor moisture transport during drying or heating of food, which can render unexpected insights. Here, we report about MRI observations made during the drying of broccoli stalks indicating anomalous drying behaviour. In fresh broccoli samples the moisture content in the core of the sample increases during drying, which conflicts with Fickian diffusion. We have put the hypothesis that this increase of moisture is due to the stress diffusion induced by the elastic impermeable skin. Pre-treatments that change skin and bulk elastic properties of broccoli show that our hypothesis of stress-diffusion is plausible.
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