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Updated: Jan 28, 2026
07:19
Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn Zea mays As an Exemplar
Published on: August 6, 2018
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Dietary Fiber Content of Corn Bran
N E Anderson1, F M Clydesdale1
1Department of Food Science and Nutrition, Massachusetts Agricultural Experiment Station, University of Massachusetts, Amherst, Massachusetts 01003.
Journal of Food Protection
|March 3, 2019
Summary
Corn bran flour contains 50.12% dietary fiber (DF), primarily hemicellulose and cellulose. These findings on corn bran fiber composition are comparable to wheat bran analysis.
Area of Science:
- Agricultural Science
- Food Science
- Biochemistry
Background:
- Dietary fiber (DF) is crucial for human health and food functionality.
- Corn bran is a potential source of valuable fiber components.
- Accurate quantification of DF fractions is essential for nutritional and industrial applications.
Purpose of the Study:
- To determine the total and fractional dietary fiber content of corn bran flour.
- To characterize the carbohydrate composition of the identified fiber fractions.
- To compare the fiber profile of corn bran with that of wheat bran.
Main Methods:
- Utilized a previously established fractionation procedure to isolate and quantify DF components.
- Employed gas-liquid chromatography for neutral sugar analysis within carbohydrate polymers.
- Applied a modified carbazole reaction for the estimation of acidic sugars.
Main Results:
- Corn bran flour exhibited a total DF content of 50.12%.
- The DF composition included 34.49% hemicellulose, 12.34% cellulose, 3.06% pectic substances, and 0.23% Klason lignin.
- The analyzed fiber components and their proportions were similar to those found in wheat bran.
Conclusions:
- Corn bran flour is a rich source of dietary fiber, particularly hemicellulose and cellulose.
- The established fractionation method provides reliable quantification of DF in cereal brans.
- The compositional similarity suggests comparable nutritional and functional properties between corn and wheat bran fiber.
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