|
|
 |
Food&Feed Line |
|
|
Dietary fiber extractor |
|
|
|
|
What is the difference between dietary fiber and raw fiber?
It is basically an analytical type of difference.
Both procedures for determining the dietary fiber and the raw fiber are aimed at calculating the indigestible residue of a food, or that is to say, everything that is not fats, proteins or carbohydrates.
Whereas the procedure for determining dietary fiber envisages using enzymes, that for determining raw fiber uses only chemical reagents (acids and bases).
The procedure for determining dietary fiber exposes the sample to a series of enzymatic digestions that simulate the actual digestive process taking place in the human and animal digestive tract, calculating the undigested residue remaining at the end of the analysis. The official analytical reference procedure is AOAC 985.29. On the other hand, in analyzing raw fiber the sample is digested using diluted solutions of acids and bases, and here as well the final undigested residue of the starting food is measured. In this case the most widely used official procedure is the Weende method (official in Italy, France, England, Sweden and the USA).
Generally, dietary fiber analysis is carried out on foods intended for human nourishment, whereas raw fiber analysis is carried out on animal feeds or on raw materials of vegetable origin, e.g. cereals.
|
|
|
|
|
|
|
|
|
