Document Type
Thesis - University Access Only
Award Date
1994
Degree Name
Master of Science (MS)
Department / School
Home Economics
First Advisor
Padmanaban G. Krishnan
Abstract
Corn distillers' grain, a by-product of the ethanol industry, is known to be an excellent source of dietary protein and dietary fiber. The protein solubility profile of corn distillers' grain at the pH range of 2 to 12 was determined. Optimal protein extraction and characterization of functional properties of extracts from distillers' grain was done. The maximum protein solubility was 26% at pH 12 and minimum protein solubility was 2% at pH 3.5. Of 12 combination of parameters tested, the highest protein extraction (53%) was achieved by using 0.3 M NaOH solution as the extraction solvent, 20,000 rpm as the homogenizing speed, 80°C as the extracting temperatures, and pH 4 as the protein recovering pH. The functional properties of protein concentrates were comparable with those of commercial soy protein concentrate, soy protein isolates and soy flour.
Library of Congress Subject Headings
Distillation
Proteins -- Analysis
Extraction (Chemistry)
Format
application/pdf
Publisher
South Dakota State University
Recommended Citation
He, Yuqing, "Protein Concentrates From Corn Distillers' Grain" (1994). Electronic Theses and Dissertations. 81.
https://openprairie.sdstate.edu/etd2/81
Rights Statement
