Xylitol
Xylitol is a polyol (sugar alcohol) used as a low-calorie sweetener in a wide range of food products. Chemically, it is a pentose polyol with sweetness comparable to sucrose, but with approximately 40% lower energy value. In the food industry it is supplied as a crystalline, white powder with neutral odour, high purity and good stability. It does not participate in Maillard reactions, which supports stable flavour and colour during thermal processing. Xylitol is particularly important in sugar-free formulations and reduced-energy products, as well as in functional products with a focus on dental health.
Source
Industrial xylitol is most commonly produced from:
- wood biomass (birch, beech) rich in xylose
- agricultural residues (corn cobs, husks, fibrous by-products)
The process includes chemical or enzymatic conversion of hemicellulose to xylose, followed by hydrogenation to xylitol and multistep crystallisation. The resulting xylitol is standardised in terms of purity, particle size and moisture content, in line with food industry requirements.
Variations
On the market, xylitol is available in several technological forms tailored to different applications:
- fine crystalline xylitol for rapid dispersion and a strong cooling effect in the mouth
- coarser granulations for dusting, decoration and blends with other sweeteners
- controlled particle size powder for instant drink mixes, dry blends and premixes
Special blends of xylitol with other polyols or intense sweeteners are also available to optimise sweetness, texture and cost-in-use.
Applications In The Food Industry
Confectionery Industry
Xylitol is widely used in sugar-free chewing gums, candies, lozenges and hard/soft caramels. It provides:
- sweetness close to sucrose
- a pronounced cooling effect in the mouth (endothermic dissolution)
- texture stability and minimal unwanted crystallisation when correctly formulated
Due to its low cariogenicity and favourable impact on oral cavity pH, xylitol is a standard ingredient in products targeting oral care and children’s sugar-free sweets.
Bakery Industry
In bakery products without sugar and in reduced-sugar formulations, xylitol is used in cookies, biscuits, cakes and sweet bakery goods. Its role includes:
- replacing sucrose while maintaining similar sweetness
- contributing to dough volume and texture with lower caloric load
- good heat stability without caramelisation and browning
It is particularly important in “diabet-friendly” and “low sugar” bakery concepts.
Beverage Industry
Xylitol is used in soft drinks, functional beverages, syrups and instant powdered drinks, especially in no-added-sugar formulations. It contributes to:
- pleasant, rounded sweetness without strong aftertaste
- partial increase in viscosity and body in beverages
- energy reduction while maintaining sensory quality
It is often combined with high-intensity sweeteners to optimise cost and sweetness profile.
Dairy Industry
In dairy and fermented products, xylitol is used in yogurts, dairy desserts, puddings and sugar-free ice cream. It allows:
- reduction of total sugar content while maintaining palatable sweetness
- improved texture and creaminess, especially in frozen desserts
- stable sweetness during storage, without degradation seen with sucrose under certain conditions
It is suitable for products aimed at consumers who control sugar and energy intake.
Benefits Of Use
Xylitol provides multiple functional and marketing advantages in food products:
- sweetness comparable to sucrose with about 40% fewer calories
- low glycaemic index and suitability for specialised dietary formulations
- non-cariogenic properties and positive effect on oral health, a strong marketing benefit
- good technological functionality (bulk, texture, stable flavour and colour) across many categories
- compatibility with other sweeteners and ingredients, facilitating the development of sugar-free and reduced-sugar products
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