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Functional Ingredients · Soluble Fiber
Polydextrose
A synthetically produced soluble dietary fiber and bulking agent — neutral taste, high solubility, low viscosity, and excellent processing stability for reduced-sugar foods, beverages, dairy, bakery, and nutritional products.
Versatile bulking fiber for modern formulations
Polydextrose is produced through controlled polymerization of glucose with small amounts of sorbitol and a food-grade acid catalyst. Its complex branched structure is only partially digested — providing soluble dietary fiber with neutral taste, low viscosity, and excellent heat stability for fiber enrichment and sugar reduction strategies.
Polydextrose is a randomly bonded glucose polymer classified as soluble dietary fiber. Produced by controlled thermal polymerization rather than plant extraction, it offers low-calorie carbohydrate properties with high water solubility, neutral flavor, low viscosity, and excellent processing stability.
Food-grade glucose is polymerized with sorbitol and an acid catalyst under controlled heat, then neutralized, purified, and dried. The result is a highly branched carbohydrate polymer with glycosidic bonds that human digestive enzymes cannot completely break down.
High solubility, neutral taste, low viscosity, excellent heat stability, and ability to provide dietary fiber and bulk make it versatile for beverages, reduced-sugar bakery, dairy, confectionery, and nutritional supplements.
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Bulk, fiber, and formulation flexibility in one ingredient
Polydextrose increases dietary fiber content while providing bulk where sugar or fat is reduced — maintaining product volume and structure. Stable under pasteurization, baking, extrusion, and UHT processing, it is widely used in functional beverages, dairy, bakery, confectionery, and meal replacement formulations worldwide.
Explore full specificationsSoluble
Dietary Fiber
Low-Cal
Carbohydrate
Neutral
Taste Profile
Heat
Stable
Product specifications & applications
Explore composition, manufacturing, functional properties, applications, and quality parameters for Polydextrose.
Introduction
Polydextrose is a synthetically produced soluble dietary fiber widely used as a bulking agent, soluble fiber, and texture modifier. Produced through controlled polymerization of glucose with sorbitol and a food-grade acid catalyst, it forms a highly branched carbohydrate polymer only partially digested in the gastrointestinal tract.
Because of neutral taste, high solubility, low viscosity, and excellent processing stability, polydextrose is incorporated into reduced-sugar foods, fiber-enriched products, beverages, bakery, dairy, confectionery, meal replacements, and nutritional supplements.
Composition
- Primary Component Glucose polymers
- Also Contains Small quantities of sorbitol
- Catalyst Citric acid or phosphoric acid (manufacturing)
Chemical Characteristics
- Randomly bonded glucose polymer with multiple glycosidic bond types
- High water solubility and low sweetness
- Low viscosity and excellent thermal stability
- Good acid stability
Nutritional Characteristics
- Soluble fiber recognized in many jurisdictions
- Low digestibility and lower caloric contribution than conventional carbohydrates
- Fermentable in the large intestine
Scientific Summary
Polydextrose is a synthetically produced soluble dietary fiber from controlled glucose polymerization. Valued for high solubility, neutral taste, low viscosity, and processing stability — widely used in beverages, dairy, bakery, confectionery, meal replacements, and reduced-sugar foods for fiber enrichment, bulk, and formulation flexibility.
Manufacturing Process
- Raw Material Preparation — Food-grade glucose with small amounts of sorbitol and food-grade acid catalyst
- Polymerization — Controlled heating polymerizes glucose into highly branched carbohydrate chains
- Neutralization — Reaction mixture neutralized to stabilize the product
- Purification — Filtration, decolorization, ion exchange, removal of residual low-molecular-weight compounds
- Drying — Supplied as powder, granules, or syrup depending on application
Functional Properties
Fiber Enrichment
Increases dietary fiber content in foods and beverages.
Bulking Agent
Provides bulk where sugar or fat is reduced — maintaining product volume and structure in reduced-sugar formulations.
Low Viscosity
Contributes minimal viscosity even at relatively high concentrations — suitable for beverages and liquid nutritional products.
Neutral Taste
Mild flavor allows incorporation without significantly altering the intended taste profile.
Excellent Processing Stability
Performs well under pasteurization, baking, extrusion, UHT processing, and beverage manufacturing — depending on formulation and conditions.
Food Applications
Functional Beverages
Functional drinks, protein beverages, meal replacement beverages, nutritional drinks, and RTD products — high solubility and low viscosity ideal for liquids.
Dairy Products
Yogurt, drinking yogurt, ice cream, dairy desserts, and fermented dairy — dietary fiber with texture support.
Bakery Products
Bread, cakes, cookies, muffins, and biscuits — bulk and fiber in reduced-sugar formulations.
Confectionery
Nutrition bars, chocolate, gummies, chewy candies, and functional confectionery.
Nutritional Supplements
Fiber supplements, protein powders, meal replacements, nutritional formulations, and functional nutrition products.
Industrial Applications
Nutraceutical formulations, medical nutrition, dietary supplements, pharmaceutical formulations, and functional ingredient blends.
Quality & Storage
Storage Conditions
- Cool, dry location
- Tightly sealed containers
- Protected from moisture
- Away from direct sunlight
- According to manufacturer recommendations
Proper storage helps preserve product quality and stability.
Quality Parameters
Evaluated for polydextrose content, moisture content, appearance, particle size, solubility, microbiological quality, heavy metals, and food safety compliance.
Regulatory Considerations
Should comply with regulations governing food ingredients, dietary fiber labeling, food safety standards, GMP, microbiological specifications, and contaminant limits.
Advantages
- Soluble dietary fiber
- Low-calorie carbohydrate
- Excellent water solubility
- Neutral taste
- Low viscosity
- Suitable for reduced-sugar formulations
- Stable during heat processing
- Compatible with beverages, dairy, bakery, and confectionery
- Available in powder, granule, and syrup forms
Where polydextrose performs best
Fiber enrichment and bulking for reduced-sugar beverages, bakery, and confectionery.
Confectionery
Nutrition bars, chocolate, gummies, and functional confectionery products.
Explore food applicationsPolydextrose at a glance
Origin
Synthetically produced from glucose polymerization — highly branched structure with partially digestible glycosidic bonds.
Key Benefit
Provides dietary fiber and bulk in reduced-sugar formulations without significantly affecting taste, viscosity, or appearance.
Forms
Available as powder, granules, or syrup — store in cool, dry conditions with sealed containers.
Related functional ingredients
Inulin
Explore inulin
Resistant Dextrin
Explore resistant dextrin
Fructooligosaccharides (FOS)
Explore FOS
What is Polydextrose?
Read the full guide
Soluble Dietary Fiber
Read the full guideFrequently asked questions
Polydextrose is a synthetically produced soluble dietary fiber made by polymerizing glucose with small amounts of sorbitol and a food-grade acid catalyst.
Yes. In many countries, polydextrose is recognized as a soluble dietary fiber and is commonly used to increase fiber content in food products.
It is produced through controlled thermal polymerization, followed by neutralization, purification, concentration, and drying to achieve the desired product specifications.
Beverages, yogurt, bakery products, confectionery, meal replacements, protein powders, nutrition bars, and dietary supplements.
Its high solubility, neutral taste, low viscosity, excellent heat stability, and ability to provide dietary fiber and bulk make it a versatile ingredient for modern food formulations.
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