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Effect of NaOH on Visible Wavelength Spectra of Single Wheat Kernels and Color Classification Efficiency
Author(s) -
Dowell F. E.
Publication year - 1997
Publication title -
cereal chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.558
H-Index - 100
eISSN - 1943-3638
pISSN - 0009-0352
DOI - 10.1094/cchem.1997.74.5.617
Subject(s) - kernel (algebra) , chemistry , artificial intelligence , pattern recognition (psychology) , dorsum , biological system , mathematics , computer science , combinatorics , biology , anatomy
A diode‐array system, which measures spectral reflectance from 400 to 700 nm, was used to quantify single wheat kernel color before and after soaking in NaOH as a means of determining color class. Wheat color classification is currently a subjective determination and important in determining the end‐use of the wheat. Soaking kernels in NaOH and classifying the soaked kernels with the diode‐array system resulted in more difficult‐to‐classify kernels correctly classified (98.1%) than the visual method of classifying kernels (74.8%). Kernel orientation had a slight effect on correct classification, with the side view correctly classifying more kernels than the dorsal or crease view. The diode‐array system provided a means of quantifying kernel color and eliminated inspector subjectivity when determining color class.