Applications of food imaging

Here mass transport is of minor importance compared to the changes in relaxation times induced by phase changes such as crystallization of water or lipid, phase separation, gelation and/or macromolecule aggregation and denatur-ation. Since relaxation times are sensitive to temperature, relaxation time maps might also be used to follow temperature changes and heat transport. 

Low concentrations of paramagnetic ions dramatically shorten water proton relaxation times so the transport of these ions in, for example, plant tissue can be monitored.153,179 Fat and water also have different proton relaxation times allowing fat and water distributions in meat180,181 and fish173 to be measured 

Water distribution during drying of food gels 164 

Water distribution during the drying of apple tissue 166 

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