Cereal Chem 54:874 - 881.  |  VIEW ARTICLE
Determination of Moisture Content in Wheat by Near-Infrared Diffuse Reflectance Spectrophotometry.

D. P. Law. Copyright 1977 by the American Association of Cereal Chemists, Inc. 

A method is described for determing moisture in ground wheat by direct near-infrared reflectance spectrophotometry. Kubelka-Munk values, F (R'(infinity)), were calculated from the spectra at 20 wavelengths between 1.12 and 2.49 microns. Multiple linear regression analysis showed that only the two values at 1.93 and 2.10 micron were sufficient to predict the moisture accurately over a range of 2.8 to 16.5% using the equation: log m = 0.966 + 1.620 log F (R'(infinity))1.93 microns-1.628 log F (R'(infinity))2.10 microns. The method is applicable to different wheat types (durum, hard red spring and soft white winter) and is unaffected by a change in mean particle size from 170 to 500 microns.