What Is Polydextrose Soluble Dietary Fiber? Applications, Dosage, Alternatives & Specifications
Last updated: 2026-11-14 · CAS 68424-04-4 · Food Grade
- Quick facts
- Name
- Polydextrose Soluble Dietary Fiber
- CAS number
- 68424-04-4
- Grade
- Food Grade
- Certifications
- ISO 9001 · ISO 22000 · HACCP · FAMI-QS · Kosher · Halal · GMP · SGS
- Application areas
- 5
- Documentation
- COA · TDS · SDS
Overview
Polydextrose, also known as water-soluble dietary fiber, is a low-calorie, low-glycemic compound with characteristics of water-soluble dietary fiber and prebiotics. It is a polysaccharide produced by high-temperature melt polycondensation of naturally occurring glucose with small amounts of sorbitol and citric acid, belonging to randomly cross-linked glucose polymers. The chemical name of polydextrose is randomly cross-linked glucose polymer, with molecular formula represented as (C6H10O5)n, CAS number 68424–04–4, INS number 1200, and CNS number 20.022. Polydextrose appears as white or off-white solid particles, soluble in water, odorless and tasteless. It is a functional food component that can supplement the water-soluble dietary fiber needed by the human body. Polydextrose is a multifunctional soluble fiber that brings both nutritional and sensory advantages to modern food formulations. It serves as a low-calorie bulking agent that can partially replace sugar and fat—preserving creaminess, texture, and mouthfeel in reduced-calorie applications while enabling fiber enrichment. Polydextrose is widely used in the food industry, health food industry, pharmaceutical industry, and daily chemical industry. In the food industry, it is one of the most versatile and cost-effective ingredients, successfully applied in nutrition bars, cereal foods, baked goods, dairy products, beverages, jam products and fillings, chocolate, confectionery, and frozen foods. In the pharmaceutical field, it is used as a pharmaceutical excipient for tablet binders in wet granulation and direct compression tablet production. In the daily chemical industry, it is used as a humectant and bulking agent. In 2014, the National Health and Family Planning Commission explicitly stated that polydextrose can be managed as a common food ingredient, while it is also listed in GB 2760 as a food additive (thickener, raising agent, moisture retainer, stabilizer) and in GB 14880 as a nutrient fortifier for use in infant formula.
Appearance: White or off-white solid particles, odorless, tasteless. Crude product is light brownish-yellow powder with sour taste; refined product after neutralization is white flowable powder, odorless.
Molecular Formula and Molecular Weight: Molecular formula represented as (C6H10O5)n, average molecular weight approximately 2000, average degree of polymerization (DP) approximately 12, ranging from 2 to 120.
Applications
Health Food and Dietary Supplement Applications
Polydextrose applications in health foods and dietary supplements are growing rapidly, making it a key ingredient in functional foods. Main…
Pharmaceutical Industry Applications
Polydextrose has important applications as a pharmaceutical excipient in the pharmaceutical field. Main Pharmaceutical Applications:
Daily Chemical Industry Applications
Polydextrose is used as a humectant and bulking agent in the daily chemical industry. Main Applications:
Infant Formula Applications
Polydextrose is used as a nutrient fortifier in infant formula. Main Applications:
Meat Product Applications
Polydextrose can be used in meat products to improve texture and increase water retention.
Specification
| Specification | Test Method | Color | White or off-white (refined); Light brownish-yellow (crude) |
|---|---|---|---|
| Place appropriate amount of sample in a clean, dry white porcelain plate, observe under natural light | State | Solid particles or powder | Same as above |
| Odor | Odorless (refined); Sour (crude) | Olfactory | Physicochemical Specifications (based on USP, FCC, JECFA standards): Parameter |
| USP/FCC Standard | Test Method | Polydextrose Content (on dried, ash-free basis), % | ≥90.0 |
| HPLC | Water Content, % | ≤4.0 | Loss on drying method |
| pH (10% aqueous solution) | 5.0–6.0 (refined) | pH meter | 1,6-Anhydro-D-glucose, % |
| ≤4.0 | HPLC | D-Glucose, % | ≤4.0 |
| HPLC | Sorbitol, % | ≤2.0 | HPLC |
| 5-Hydroxymethylfurfural (HMF), % | ≤0.1 | HPLC | Sulfated Ash, % |
| ≤0.3 | Ignition method | Lead (Pb), mg/kg | ≤0.5 |
| Atomic Absorption Spectrometry/ICP-MS | Nickel (Ni), mg/kg | ≤2 | Atomic Absorption Spectrometry |
| Arsenic (As), mg/kg | ≤0.3 | Atomic Fluorescence Spectrometry | Total Plate Count, CFU/g |
| ≤1000 | GB 4789.2 plate count method | Coliforms, MPN/g | ≤0.3 |
| GB 4789.3 MPN method | Yeast and Mold, CFU/g | ≤100 | GB 4789.15 |
| Salmonella | Not detected | GB 4789.4 | Note: The above specifications are compiled based on USP, FCC, JECFA and other international standards. 3.2 Product Grade Classification Specification Type |
| Assay Range | Key Characteristics | Typical Applications | Food Grade Polydextrose (GB 2760) |
| ≥90.0% | White or off-white particles/powder, complies with national standard | Food additive, thickener, raising agent, moisture retainer, stabilizer | Pharmaceutical Grade Polydextrose (USP/EP) |
| ≥90.0% | Complies with pharmacopoeia standards, strict quality control | Pharmaceutical excipients, tablet binders, wet granulation | Health Food Grade Polydextrose |
| ≥90.0% | Complies with health food filing regulations | Health foods, dietary supplements, functional foods | Refined Grade Polydextrose |
| ≥90.0% | White flowable powder, odorless | Food, beverages, pharmaceuticals, daily chemicals | Regular Grade Polydextrose |
| ≥90.0% | Light brownish-yellow powder, sour taste | Industrial applications, non-sensitive foods | Powder Form Polydextrose |
| ≥90.0% | White solid particles, uniform particle size | Food ingredients, beverage premixes, health foods | Liquid Form Polydextrose |
| ≥70.0% (dry substance) | Clear colorless or light yellow liquid | Beverages, liquid flavors |
Packaging & Storage
- Packing: 25kg net fiber drum with double PE liner.
- Sample: 100-500g free sample available.
- Storage: Keep in tightly closed packaging, cool, dry, well-ventilated. Protect from light and moisture.
- Shelf Life: 24 months from production date.
Quality & Certifications
Every batch tested by in-house QC lab. COA, TDS, SDS provided with each shipment.
Regulatory & Compliance
EU
Complies with EU regulations and FAMI-QS standards.
USA
Meets FDA and AAFCO requirements.
China
Registered under Chinese MOA regulations.
International
Kosher, Halal, ISO certified. FTA forms available.
Safety & Handling
- Hazard Class: Generally non-hazardous. Refer to SDS for details.
- Storage: Room temperature, dry, sealed. Avoid strong oxidizers.
- Transport: Non-dangerous goods. Standard sea/air freight.
- SDS: Available on request at sales@xadditive.cn.
Frequently asked questions
MOQ?
MOQ is 1kg for trial, 25kg for regular orders. Free samples available.
Shelf life?
24 months from production date when stored properly.
Certifications?
ISO 9001, ISO 22000, HACCP, FAMI-QS, Kosher, Halal, COA, SDS, TDS.
How to get quote?
Email sales@xadditive.cn with your requirement. Reply within 30 minutes.
Request a quote & COA
Ask for the current specification sheet, a COA sample and a bulk quotation — reply within 30 minutes on working days.