Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 40, Issue 4, Pages 638-645Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2006.03.013
Keywords
osmotic dehydration; apple; neural networks; mass transfer; modeling
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An artificial neural network (ANN) model was developed for the prediction of water loss (WL) and solid gain (SG) in osmotic dehydration of apple cylinders using a wide variety of data from the literature to make it more general. This model mathematically correlates six processing variables (temperature and concentration of osmotic solution, immersion time, surface area, solution to fruit mass ratio and agitation level) with WL and SG. The optimal ANN consisted of one hidden layer with four neurons. This model was able to predict WL and SG in a wide range of processing variables with a mean square error of 13.9 and 4.4, and regression coefficient of 0.96 and 0.89, respectively, in testing step. This ANN model performs better when compared to linear multi-variable regression. The wide range of processing variables considered for the formulation of this model, and its easy implementation in a spreadsheet using a set of equations, make it very useful and practical for process design and control. (c) 2006 Swiss Society of Food Science and Technology. Published by Elsevier Ltd. All rights reserved.
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