Amino Acid Profile of Biodegraded Brewers Spent Grains (BSG)

  • Essien J
  • Udotong I
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Abstract

The amino acids profiles of biodegraded brewers spent grains (BSG) were determined. The analysis revealed the presence of 17 amino acids including the major amino acids (cysteine, lysine and methionine) required in poultry nutrition. The concentrations of the amino acids however varied with the microbial species used in the degradation process. After 10 days of solid state fermentation at room temperature glusine, alanine and phenyalanine were detected at very high concentration in Aspergillus niger TF-4 degraded BSG. Glusine, alanine and proline were the major amino acid components of BSG degraded by Saccharomyces cerevisiae FP-4, while glusine, alanine and leucine were found to be the major components of BSG degraded by Streptomyces sp UU-2. The concentrations of the required amino acids except lysine were short of the standard requirement for poultry. However their concentrations were positively affected over time by biodegradation

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Essien, J., & Udotong, I. (2010). Amino Acid Profile of Biodegraded Brewers Spent Grains (BSG). Journal of Applied Sciences and Environmental Management, 12(1). https://doi.org/10.4314/jasem.v12i1.55582

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