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Chemometric amylose modeling and sample selection for global calibration using artificial neural networks

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Title: Chemometric amylose modeling and sample selection for global calibration using artificial neural networks
Authors: Shimizu, N. Browse this author
Okadome, H. Browse this author
Wada, D. Browse this author
Kimura, T. Browse this author
Ohtsubo, K. Browse this author
Keywords: amglose
artificial neural network
Issue Date: Aug-2008
Publisher: 食品科学網
Journal Title: 食品科学
Volume: 29
Issue: 8
Start Page: 118
End Page: 124
Abstract: Chemometric amylose modeling for global calibration, using whole grain near infrared transmittance spectra and sample selection, was used in an artificial neural network (ANN), to assess the global and local models generated, based on samples of newly bred Indica, Japonica and rice. Global samples sets had a wide range of sample variation for amylose content and a narrow sample variation (amylose; 12.3 to 21%). For sample selection the CENTER algorithm was applied to generate calibration, validation and stop sample sets. Spectral preprocessing was found to reduce the optimum number of partial least squares (PLS) components for amylose content and thus enhance the robustness of the local calibration. The best model was found to be an ANN global calibration with spectral preprocessing; the next was a PLS global calibration using standard spectra. These results pose the question whether an ANN algorithm with spectral preprocessing could be developed for global and local calibration models or whether PLS without spectral preprocessing should be developed for global calibration models. We suggest that global calibration models incorporating an ANN may be used as a universal calibration model.
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 清水 直人

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