FIWE units are suitable for the crude fiber analysis and detergent fiber extraction according to official standard methods.

  • Vegetables and derived products are made up of substances belonging to different categories
    Carbohydrates, proteins, fats, mineral salts
    A non-digestible component consisting of polymers (lignin, cellulose, hemicellulose, pectin) called “fiber”
  • Nutritional importance for analysis
    Too much fiber can cause digestive problems
    Low fiber intake creates irregularities in the functioning of the digestive tract
  • Authorities of almost all countries require manufacturers of food & feed products to declare the fiber content as part of the nutritional table


  • Weende Method
    The oldest analytical procedure still in use today, in which fiber concentration is measured as crude fiber (CF)
  • Van Soest Method (NDF, ADF, ADL)
    A method developed by Van Soest, being now the most common measure of fiber used for animal feed analysis. Van Soest method is based on the concept that plant cell can be divided into less digestible cell walls consisting of hemicellulose, cellulose and lignin. As a result is possible to fraction fiber in NDF, ADF and ADL that are used to estimate the energy intake from feed and particularly for ruminants.

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FIWE Advance Automatic Fiber Analyzer



FIWE Fiber Analyzers


COEX Cold Extractor



The automatic analyzer for crude and detergent fiber determination according to official reference methods requiring minimum operator time with unique user interface and cloud connectivity.

  Fiber Analyzers that use pre-heated reagents for fiber analysis according to Weende, Van Soest and other official methods.
  Cold extractor that performs rapid fat extraction directly in the same glass crucibles that are used by the FIWE Series for raw fiber analysis.