Practical 5: Crude Fibre Content

What components are detected by crude fibre analysis?

Mainly cellulose and lignin are removed; others, such as pectins, are not.

What is the principle behind the FiberCap method?

The FiberCap method utilizes a specific enzymatic process to selectively digest non-fiber components, enabling the accurate measurement of fiber content. It primarily targets cellulose and hemicellulose while preserving lignin.

Why must high-fat samples be defatted before analysis?

To prevent interference with the measurement of fiber content, as fats can obstruct enzyme activity and lead to inaccurate results.

How is capsule solubility corrected in fibre analysis?

Using a blank capsule to calculate a correction factor.

Health role of crude fibre?

Aids digestion, regulates bowel movement, and supports satiety.