Artificial neural networks (ANNs) and multiple linear regression (MLR) for prediction of moisture content for coated pineapple cubes
Jitrawadee Meerasri, Rungsinee Sothornvit
Case Studies in Thermal Engineering
Abstract
The effects were investigated of edible coating and drying temperature (50, 65 and 80 °C) on the properties of dehydrated pineapple cubes. A comparative study was performed using mathematical models, multiple linear regression (MLR) and artificial neural networks (ANNs) to predict moisture ratio (MR) and drying rate (DR). Kinetic drying, effective moisture diffusion (Deff) and activation energy were examined. Midilli et al. model was the best fit to predict MR. Higher air temperature reduced drying time and moisture content, while Deff increased for uncoated and coated dried pineapples of 1.69 × 10−9 to 5.57 × 10−9 m2/s and 1.60 × 10−9 to 5.95 × 10−9 m2/s with the activation energy (Ea) of 37.68 and 41.61 kJ/mol, respectively. Interestingly, the edible coating did not significantly affect Deff and Ea, but it retained ascorbic acid. Moreover, ANNs model was appropriate for the prediction of the MR and DR of dehydrated pineapple cubes, as this model had the highest R2 and accuracy with the lowest RMSE and MAE. The ANNs models with topology of 3–14-14-1 for MR and 3-7-7-1 for DR predictions were the optimal to estimate the drying process of uncoated and coated fruits with satisfactory accuracy and benefit for food industry.
Extracted Claims
5 claims extracted from this paper into the knowledge graph
ANNs model was appropriate for prediction of moisture ratio (MR) and drying rate (DR)
“Moreover, ANNs model was appropriate for the prediction of the MR and DR of dehydrated pineapple cubes, as this model had the highest R2 and accuracy with the lowest RMSE and MAE.”
edible coating retained ascorbic acid
“Moreover, the edible coating did not significantly affect Deff and Ea, but it retained ascorbic acid.”
drying temperature increased effective moisture diffusion (Deff)
“Higher air temperature reduced drying time and moisture content, while Deff increased for uncoated and coated dried pineapples of 1.69 × 10−9 to 5.57 × 10−9 m2/s and 1.60 × 10−9 to 5.95 × 10−9 m2/s wi...”