A.A.  Rumyantsev, O.G.  Loretts, V.S.  Kuhar, 
    Research of the Relationship Between Color and Biochemical
Properties of Buckwheat Groats,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 20,
    2018,
    Pages 8500-8505,
    ISSN 1816-949x,
    jeasci.2018.8500.8505,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.8500.8505)
    Abstract: In the study a significant linear correlation is shown between x and y chromaticity coordinates of the
color of buckwheat groats in CIE xyY diagram and the regression function y = f (x) is given. A quantitative
correlation is established between the change in color and the content of the main components of buckwheat
groats biochemical complex (starch and proteins) and dextrin which occurs during hydrothermal processing of
buckwheat grain. The results obtained allow assessing the quality of buckwheat groats by its color as well as
open up the possibility of effective management of the groats production processes. The range of colors is
determined in which the content of the studied components of buckwheat groats biochemical complex changes
insignificantly, so, it may be used as a basis for rational choice of modes of hydrothermal processing of
buckwheat grain.
    Keywords: Hydrothermal processing of grain;buckwheat groats;color;biochemical complex;protein;starch;dextrin;chromaticity coordinates