Abstract
SummarySamples taken during air drying of carrots were analysed after different equilibration times. Low resolution NMR measurements were made and the longitudinal (T1) and the transverse (T2) relaxation times calculated. Both T1 and T2 decreased with the equilibration time for water contents above 0.30 and 0.47 kg water kg‐1 dry matter, respectively. The decrease in relaxation time increased with the water content. For the same water contents, grated carrots gave lower T1 values and smaller T1 decreases with equilibration time than 3‐mm cubes. Low resolution NMR is a technique which is well suited to the monitoring of the tempering phases of industrial drying cycles.
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