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United States Department of Agriculture

Agricultural Research Service

Title: The Use of Nir to Measure Total Dietary Fiber Content of Cereal Products

item Kays, Sandra
item Windham, William
item Barton Ii, Franklin

Submitted to: Near Infrared Spectroscopy International Conference Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: August 17, 1995
Publication Date: N/A

Technical Abstract: The Nutritional Labeling and Education Act (NLEA) requires that the amount of total dietary fiber be included on food labels. Accurate, rapid, and environmentally safe methods are needed for the measurement of dietary fiber and for monitoring NLEA compliance. The current work assesses the application of NIR techniques for the measurement of dietary fiber. Total dietary fiber content of dry milled breakfast cereals, crackers, brans, an flours was measured in the laboratory by the AOAC enzymatic-gravimetric procedure (AOAC, 991.43). Dietary fiber values ranged from 1.0 to 50.5%. The milled cereal samples (n=53) were scanned using an NIRSystems 6500 monochromator and ISI software. A dietary fiber calibration was obtained using Partial Least Squares regression. The standard error of cross validation was 1.94% with R2 = 0.97. Independent samples (n=16) were analyzed in the laboratory and scanned by NIR for equation validation. The estandard error of prediction for the validation set was 1.3% with R2 = 0.92. Suitably calibrated, NIR represents a rapid and accurate method of measuring total dietary fiber in cereal products

Last Modified: 4/22/2015
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