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.
Pintauro
S J
SJ
Department of Nutritional Sciences, University of Vermont, Burlington 05405.
al-Nasser
A S
AS
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