Crude Fibre Calculator
This calculator estimates the crude fibre content in feed or food samples using the standard gravimetric method. It is especially useful for chemists, food scientists, and agriculture professionals to determine the indigestible fibrous residue after acid and alkaline digestion. Just enter the weights before and after ashing, along with the sample weight, to get the crude fibre percentage.
Crude Fibre Calculator
Gravimetric Crude Fibre Formula
Explanation:
This formula calculates the crude fibre content by subtracting the ash weight from the post-digestion residue, then expressing the result as a percentage of the original sample weight.
Crude fibre is the portion of plant material in foods that is indigestible. It’s measured after treating the sample with dilute acid and alkali, simulating the human digestive process. The residue is weighed before and after ashing in a muffle furnace to eliminate organic matter. This result helps assess the nutritional value and digestibility of feeds and food, particularly in agricultural and animal nutrition sectors.