Journal
JOURNAL OF FOOD ENGINEERING
Volume 166, Issue -, Pages 193-203Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2015.06.007
Keywords
E-nose; E-tongue; Citrus; Extreme Learning Machine; Random Forest; Support Vector Machine
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Funding
- National Key Technology RD Program [2012BAD29B02-4]
- Chinese National Foundation of Nature and Science [1370555]
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This paper demonstrates a joint way employing both of an electronic nose (E-nose) and an electronic tongue (E-tongue) to discriminate two types of satsuma mandarins from different development stages and to trace the internal quality changes (i.e. ascorbic acid, soluble solids content, total acid, and sugar/acid ratio). Extreme Learning Machine (ELM), Random Forest (RF) and Support Vector Machine (SVM) were applied for qualitative classification and quantitative prediction. The models were compared according to accuracy rate and regression parameters. For classification, the three systems (E-nose, E-tongue, and the fusion system) achieved perfect results respectively. For internal quality prediction, the RF and ELM models obtained better performance than the SVM models. The fusion systems had an advantage when compared with the signal system. This study shows that the E-nose and E-tongue systems combined with RF or ELM could be a fast and objective detection system to trace fruit internal quality changes. (C) 2015 Elsevier Ltd. All rights reserved.
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