Journal article
Nutrient Enhancement of Corn Distillers Dried Grains by Addition of Coproducts of the Enzyme-Assisted Aqueous Extraction Process of Soybeans in Corn Fermentation
Journal of the American Oil Chemists' Society, v 96(9), pp 1047-1057
01 Sep 2019
Abstract
Corn distillers dried grains with solubles (DDGS) are not nutritionally complete as a nonruminant ingredient owing to poor essential amino acid profile, and high fat and fiber contents. Coproducts of soybean enzyme-assisted aqueous extraction process, skim (wastewater) and insoluble fiber (IF; solid residue), and/or enzymes (pectinase, cellulase, and acid protease; referred to as PCF) were evaluated as distillers dried grains (DDG) nutritional quality enhancers in corn fermentation. Corn-soy DDG had similar to 10% higher protein, similar to 3% lower fat, and similar to 2% lower fiber contents compared to corn DDG; fiber content was further reduced with PCF treatment (similar to 4% total decrease). Concentrations of all essential amino acids in corn-soy DDG showed at least a threefold increase, except for allo-isoleucine and tryptophan, compared to corn DDG. Corn-soy DDG had similar to 25% decrease in total fatty acid (TFA) and similar to 6% decrease in free fatty acid (FFA) contents compared to corn DDG; TFA and FFA contents further decreased with PCF treatment. Corn-soy DDG had similar to 15%, 3%, and 1.7% lower hemicellulose, cellulose, and lignin contents, respectively, compared to corn DDG; hemicellulose content further decreased with PCF treatment. Mineral composition of corn-soy DDG was in the recommended range, except Na and S were out of range by 0.79% and 0.74%, respectively. All results, except for Na and S, suggest strong potential of using skim and IF as DDG nutritional quality enhancers.
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Details
- Title
- Nutrient Enhancement of Corn Distillers Dried Grains by Addition of Coproducts of the Enzyme-Assisted Aqueous Extraction Process of Soybeans in Corn Fermentation
- Creators
- Jasreen K. Sekhon - Drexel UniversityKurt A. Rosentrater - Iowa State UniversityStephanie Jung - California Polytechnic State UniversityTong Wang - Iowa State University
- Publication Details
- Journal of the American Oil Chemists' Society, v 96(9), pp 1047-1057
- Publisher
- Wiley
- Number of pages
- 11
- Grant note
- United State Department of Agriculture National Institute of Food and Agriculture
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Food and Hospitality Management
- Web of Science ID
- WOS:000485001300008
- Scopus ID
- 2-s2.0-85067411788
- Other Identifier
- 991019168834604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Applied
- Food Science & Technology