Fiber content in food is calculated differently depending on whether it's soluble or insoluble fiber.
- Insoluble fiber is calculated by adding the content of cellulose, lignin, and 2/3 of hemicelluloses. This sum is then multiplied by a correlation coefficient to get the final value.
- Soluble fiber is calculated by adding the content of pectin and 1/3 of hemicelluloses. This sum is then multiplied by a correlation coefficient to get the final value.
These calculations are often used in food labeling and nutrition analysis, helping consumers understand the fiber content of different foods.