Which technique measures protein during direct analytical chemistry?
Answer
Kjeldahl method.
For achieving high-level accuracy required in research or quality control, direct analytical chemistry is employed, involving physical testing of the food sample. When determining macronutrients directly in a laboratory setting, the Kjeldahl method is specifically utilized for quantifying the total protein content within the sample matrix. This method involves a chemical digestion process followed by titration to estimate the nitrogen content, which is then converted to an estimate of total protein.
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