Citrus fiber
Citrus fiber is an ingredient obtained mainly from the fibrous parts of oranges, lemons and other citrus fruits (Citrus spp., family Rutaceae), often recovered from by-products of juice production.
It consists primarily of insoluble and soluble dietary fibre, including cellulose, hemicelluloses and pectins, in proportions that vary depending on the raw material and manufacturing process.
It has a high capacity to absorb and retain water and, in some products, also fats and oils. For this reason, it is used not only to increase fibre content but also as a technological ingredient.
From a nutritional point of view, highly purified citrus fiber generally contains very little sugar or fat and can help increase overall dietary fibre intake.
Dietary fibre supports normal bowel function and may contribute to satiety. The actual effects depend on the amount consumed and the overall composition of the food.
Unlike whole citrus fruit, citrus fiber does not necessarily provide significant amounts of vitamin C, which may be largely removed or degraded during processing.
It may, however, retain small amounts of pectins and phenolic compounds naturally present in citrus peel and fibrous tissues.
Uses in Food
It is used in baked goods, bread, biscuits, meat products, sauces, plant-based foods, desserts and fibre-enriched products.
Thanks to its water-holding capacity, it can improve softness, texture, yield and stability.
It may help reduce water loss during cooking and storage and is sometimes used as a thickener, structuring agent or partial fat replacer.
In baked products, it can also help maintain softness for longer and increase the declared fibre content.
Uses in Cosmetics
Citrus-derived fibres and related ingredients may be used in cosmetics as absorbent, texturising and stabilising agents.
They may be found in masks, scrubs, cleansers, powders and skincare formulations, particularly where plant-derived ingredients are preferred.
Pectins and other citrus-derived polysaccharides may also contribute to viscosity and film formation in cosmetic formulations.
Food-grade citrus fiber, however, should not automatically be considered equivalent to a standardised cosmetic ingredient.
Calories
When composed mainly of dietary fibre, it provides approximately 180–220 kcal per 100 g, based on the conventional energy value assigned to fermentable fibre. The actual value may vary depending on purity and residual carbohydrates.
Allergens
Citrus fruits are not among the major food allergens requiring mandatory declaration in the European Union. Rare individual reactions may nevertheless occur.
Assessment
An interesting ingredient from both a nutritional and technological point of view, thanks to its high fibre content and its ability to retain water and improve food structure.
Ingredient verdict: a useful source of plant fibre and a versatile technological ingredient for improving fibre content, texture and product stability.
Cons: possible gastrointestinal discomfort when consumed in large amounts
