Nutritional Characteristics of Distiller's Spent Grain

Authors:
  • GRG. S. Ranhotra
    G. S. Ranhotra
  • JGJ. A. Gelroth
    J. A. Gelroth
  • FTF. A. Torrence
    F. A. Torrence
  • MBM. A. Bock
    M. A. Bock
  • GWG. L. Winterringer
    G. L. Winterringer
  • LBL. S. Bates
    L. S. Bates
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Abstract
Five distiller's spent grain (DSG) samples were analyzed for their compositional and nutritional (protein efficiency ratio, PER) values. The protein content (N × 6.25) of these samples ranged from 26.9–34.9% (air‐dry basis). True protein content, however, was substantially lower. Dietary fiber content of samples ranged from 29.1–35.8%. Samples contained about 3% nucleic acid. All samples contained appreciable amounts of potassium, magnesium, phosphorus, zinc, copper, iron, chromium, thiamin, riboflavin and niacin. The lysine content of DSG samples ranged from 2.50–3.74 g/100g protein. Except for one sample (PER, 1.7), the quality of protein in the samples was low (PER, 0.6 ± 0.1).
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