Classification of cereal flours by chemometric analysis of MIR spectra |
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| Authors: | Cocchi Marina Foca Giorgia Lucisano Mara Marchetti Andrea Pagani M Ambrogina Tassi Lorenzo Ulrici Alessandro |
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| Institution: | Dipartimento di Chimica, Università di Modena e Reggio Emilia, Via Campi 183, 41100 Modena, Italy. |
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| Abstract: | Different kinds of cereal flours submitted to various technological treatments were classified on the basis of their mid-infrared spectra by pattern recognition techniques. Classification in the wavelet domain was achieved by using the wavelet packet transform for efficient pattern recognition (WPTER) algorithm, which allowed singling out the most discriminant spectral regions. Principal component analysis (PCA) on the selected features showed an effective clustering of the analyzed flours. Satisfactory classification models were obtained both on training and test samples. Furthermore, mixtures of varying composition of the studied flours were distributed in the PCA space according to their composition. |
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