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Proceedings Paper

Assessment of the quality of durum wheat products by spectrofluorometry and fluorescence video image analysis
Author(s): Bruno Novales; Joel Abecassis; Dominique Bertrand; Marie-Francoise Devaux; Paul Robert
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Paper Abstract

Because assessment of Durum wheat semolina purity by standard ash-test has been widely criticized, we attempted to characterize products of a semolina mill by spectrofluorometry and fluorescence imaging. A collection of milled wheat products ranging from very pure semolina to brans were chosen for this study. Multidimensional statistical analyses (Principal component analyses) were applied to the spectral and image data. Maps showing a classification of the products according to purity were obtained without biochemical calibration. Principal component regression was applied to the data in order to test the relationship of aleurone fluorescence to ash content. Both spectrofluorometry and fluorescence imaging gave similar results with good determination coefficients (r2 equals 0.97 and 0.92) for the study of a single wheat variety. Products obtained from different wheat varieties were more difficult to compare.

Paper Details

Date Published: 6 January 1995
PDF: 10 pages
Proc. SPIE 2345, Optics in Agriculture, Forestry, and Biological Processing, (6 January 1995); doi: 10.1117/12.198865
Show Author Affiliations
Bruno Novales, Institut National de la Recherche Agronomique (France)
Joel Abecassis, Institut National de la Recherche Agronomique (France)
Dominique Bertrand, Institut National de la Recherche Agronomique (France)
Marie-Francoise Devaux, Institut National de la Recherche Agronomique (France)
Paul Robert, Institut National de la Recherche Agronomique (France)


Published in SPIE Proceedings Vol. 2345:
Optics in Agriculture, Forestry, and Biological Processing
George E. Meyer; James A. DeShazer, Editor(s)

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