Effect of coatings with wild sage seed, basil seed and xanthan gums on the appearance characteristics of dried quince slices

Authors
Fakhreddin Salehi 1
Shamimeh Azimi Salim 2
1 Associate Professor, Faculty of AgricultureĜŒ Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
2 Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
10.52547/fsct.18.118.55
Abstract
Coating the fruits using edible gums increases the appearance quality, improves the color and reduces their shrinkage at the end of the drying process. The purpose of this study was to investigate the effect of coating with wild sage seed, basil seed and xanthan gums on the appearance characteristics of dried quince slices in the infrared system. In this study, quince slices with a thickness of 0.5 cm were coated using wild sage seed, basil seed and xanthan gums (concentration of 1%) and then placed in an infrared dryer and the effects of radiation power (250 and 375 W) on the appearance characteristics were examined. Also, for modeling the color change index, the Power, Quadratic, Gompertz, Logistic, Richards, MMF, and Weibull models were used. Color indexes including lightness, redness, yellowness and color changes as well as changes in the samples area during drying time were examined. The calculated lightness index for the drying process of quince samples showed that the coated samples with wild sage seed gum were brighter. In terms of color change index, coated quince slices with wild sage seed gum showed the lowest color changes during drying time and the average values of this index for the uncoated sample, coated with wild sage seed, basil seed and xanthan gums were equal to 35.09, 20.20, 43.40 and 28.33, respectively (250 W). For modeling the color change index, the MMF model had less error than the others models. The results showed that the coating with wild sage seed gum maintained the appearance of the dried product and also the least shrinkage in the drying duration and at different radiation powers were observed in these coated samples.
Keywords
Color indexes
Infrared dryer
Modeling
Shrinkage

Subjects

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