研究目的

This study aimed to (i) explore the drying characteristics of radish slabs under different drying methods (HAD, MD, and HMCD methods), (ii) determine the changes in DP of radish depending on the MC, (iii) predict and visualize MC distribution of radish dried by different drying methods using a multivariate data analysis technique and an image processing strategy, (iv) improve the prediction efficiency of the multivariate model and accurate visualization of the moisture distribution map by selecting optimal variables representing the changes in sample MC, and (v) compare the obtained results with previously mentioned studies and suggest competent techniques for the uniform drying of radish samples.

研究成果

The study concluded that the Page model was most suitable for describing drying characteristics of radish slabs under different drying methods. The PLSR-VIP model developed with optimal variables provided high prediction accuracies for MC. Visualization of drying patterns showed that HMCD resulted in nearly uniform drying, improving drying uniformity and significantly reducing drying time.

研究不足

The study focused on radish slabs under specific drying conditions, and the findings may not be directly applicable to other vegetables or drying methods. The penetration depth of microwaves in radish was found to be between 0.81 and 1.15 cm, which may limit the effectiveness of microwave drying for thicker samples.