Nutrition evaluation and mutagenicity testing of freeze-dried distiller's grains with solubles.
Distiller's grains with solubles (DGS) was obtained from a commercial fermentation of 90% corn and 10% wheat for ethanol production. The DGS was freeze-dried and proximate analysis resulted in 17.6% protein, 5.5% fat, 3.0% ash, 17.3% moisture, 21.6% neutral detergent fiber, and 35% carbohydrate by difference. Fatty acid analysis and amino acid analysis were similar to those of corn. Tryptophan was the limiting amino acid with a chemical score of 47. Protein Efficiency Ratio (PER) was 1.49. Mutagenicity testing of lipid and aqueous extracts of DGS in the Ames Salmonella mammalian microsome assay were negative.
Department of Nutritional Sciences, University of Vermont, Burlington 05405.
S J
SJ
Pintauro
A S
AS
al-Nasser
D000596:Amino Acids / Q000032:analysis; D002523:Edible Grain / Q000032:analysis* / Q000633:toxicity; D000431:Ethanol / Q000096:biosynthesis; D005227:Fatty Acids / Q000032:analysis; D005285:Fermentation; D005612:Freeze Drying; D009152:Mutagenicity Tests; D009753:Nutritive Value; D010940:Plant Proteins / Q000032:analysis; D012995:Solubility; D003313:Zea mays / Q000032:analysis
D000596:Amino Acids; D005227:Fatty Acids; D010940:Plant Proteins; D000431:Ethanol