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Significance
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Most widely used methods for protein determination are
combustion and kjeldahl which measure only nitrogen
PROTEIN ADULTERATION
►
Generally, amino acids are cheaper than high quality
protein ingredients
►
Amino acids and Taurine can be added to products to
“fool” methods and increase the perceived protein
content of product
►
Common adulterants
Taurine
Glycine
Alanine
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Analytical Needs
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Method should
Identify and quantify each relevant proteinaceous
amino acid in raw materials and a variety of dietary
supplements in which amino acids are a dietary
ingredient
Identify and quantify proteinaceous amino acid
adulterants in relevant dietary supplement finished
products
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