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Proximate Analysis

Estimation and determination of the major food components in a given food, is done by validating content of nutrients in order to prevent a food processor from making unfounded claims to the public. Four standard constituents can easily be obtained via chemical reactions and experiments by BUCHI, and are an inexpensive way to track deviations from the quality of food.

  Extraction Kjeldahl NIR Incineration
Analyte Fat Protein and Nitrogen Fat, Protein, Salt, Ash Ash
Analytical method Soxhlet (reference) Kjeldahl (reference) Screening (indirect) Ashing
Limit of detection (LOD) 10 mg 0.02 mg N 0.10% -
Throughput in 9 hours 18 samples up to 120 samples ~190 samples 12
Application overview Applications Extraction

Applications Kjeldahl

Applications NIR Application Wet Digester
Case studies  

Kjeldahl customers