Chitosan Oligosaccharide – (Mushroom)

Description

Chitosan Oligosaccharide – Mushroom: Low Molecular Weight, Fully Water-Soluble, Fungal-Derived

Mushroom Chitosan Oligosaccharide is a low-molecular-weight, fully water-soluble form of chitosan derived from fungal biomass rather than crustacean shells. It’s supplied as a fine powder, available in Food and Industrial grades, with a documented specification of ≤1 kDa molecular weight and 95%+ degree of deacetylation (DDA).

Evaluating this material for your formulation? check the COA, or order a 25 g sample to test before you scale.

Product Snapshot

Purity, moisture, and ash values are not currently published on this page — request the COA above for full batch-specific testing data before scale-up.

Why Formulators Choose This Grade

The molecular weight and DDA aren’t incidental numbers they’re what make this specific material behave differently from both native mushroom chitosan and shellfish-derived chitosan oligosaccharide:

• Sub-1 kDa molecular weight puts this well within the low end of the chitosan oligosaccharide range, meaning fuller aqueous solubility and lower viscosity than higher-MW COS grades.
• 95%+ DDA provides a high density of available amine groups, relevant to charge-dependent behavior in both formulation and research contexts.
• Fungal origin removes crustacean material from the supply chain entirely relevant for manufacturers avoiding shellfish-derived ingredients for sourcing, labeling, or market-positioning reasons.
• Water solubility means this material dissolves directly, without the acid-handling step native chitosan requires.

None of this makes the material universally “better” it makes it a specific tool for formulations that need full aqueous solubility, low viscosity, and non-shellfish sourcing simultaneously. If your formulation doesn’t need all three, native mushroom chitosan or a shellfish-derived alternative may be more cost-effective.

Mushroom COS vs. Native Mushroom Chitosan

The short version: native mushroom chitosan is a much larger polymer, generally acid-soluble rather than water-soluble, and better suited to film-forming or coating applications. This COS grade is a fragment of that same polymer, small enough to dissolve fully in water and behave with much lower viscosity better suited to liquid formulations, beverages, and applications where acid processing isn’t practical. For the full comparison, including specification ranges and use-case guidance, see Mushroom COS vs. Native Mushroom Chitosan.

Key Characteristics

Low molecular weight. At below 1 kDa, this material sits toward the lower end of the chitosan oligosaccharide range, which typically supports faster dissolution and lower solution viscosity than higher-MW COS grades relevant for liquid formulation work where excess viscosity is a constraint.

Water solubility. This grade dissolves fully in water without requiring acid pre-treatment, unlike native chitosan. For the underlying chemistry of why chain length affects solubility this way, see our water-soluble mushroom chitosan guide.

Fungal/mushroom origin. Sourced from mushroom biomass rather than crustacean shells. This supports non-shellfish sourcing positioning; specific allergen-free, vegan, halal, or kosher claims depend on your target market’s requirements and should be confirmed with your own regulatory or certification process rather than assumed from origin alone.

DDA (95%+). Degree of deacetylation reflects how many amine groups are available along the polymer chain, relevant to charge-dependent formulation behavior and some biological research contexts.

Where This Grade Is Used

Functional foods and nutraceutical research. Water solubility and low viscosity support incorporation into powder blends, functional beverages, and liquid supplement formats without requiring an acidic carrier. See Mushroom COS for Functional Foods for formulation-specific detail.

Agriculture. Chitosan oligosaccharides are studied as biostimulants and elicitors of plant defense responses; water solubility simplifies aqueous spray preparation.

Cosmetics and personal care. Relevant where the Food or Industrial grade’s specification fits an aqueous formulation matrix confirm grade suitability against your product’s regulatory category before use.

Pharmaceutical and drug-delivery research. Low molecular weight and aqueous compatibility are studied in hydrogel and nanoparticle carrier research contexts. See Mushroom COS for Drug Delivery for the research picture specific to this material research findings should not be read as confirmed properties of this commercial grade without independent testing.

Industrial and biomaterials formulations. Full aqueous solubility supports coating, film, and biopolymer research where acid-based processing isn’t practical.

Material Benefits — Briefly

As a material, this grade offers water solubility, low viscosity, easier aqueous handling than native chitosan, and fungal (non-shellfish) sourcing. For a fully cited treatment of the biological research associated with chitosan oligosaccharide generally antioxidant, antimicrobial, and gut-microbiota research, each labeled by evidence strength see our research on Mushroom Chitosan Oligosaccharide benefits. That research describes chitosan oligosaccharide broadly; it should not be read as a guaranteed property of this specific batch without independent verification.

Mushroom COS vs. Shellfish COS

Both can share similar molecular weight and DDA specifications the primary difference is biological source, which affects sourcing positioning (non-shellfish, potential vegan-adjacent claims) and supply-chain considerations, not a guaranteed performance advantage in either direction. See Mushroom COS vs. Shellfish COS for the full comparison.

How It’s Produced — Briefly

This material is produced by breaking down fungal-derived chitosan into much shorter chain fragments through controlled depolymerization, then purifying and drying the resulting oligosaccharide fraction. For the full technical process, see how Mushroom Chitosan Oligosaccharide is produced.

Is This Mushroom COS Right for Your Formulation?

Don’t select this material based on the name “Chitosan Oligosaccharide” alone the actual specification determines fit. Before ordering, confirm:

• Intended application — food, nutraceutical, agricultural, cosmetic, or industrial (Food and Industrial grades carry different documentation expectations)
• Required molecular weight — confirm ≤1 kDa fits your formulation’s viscosity and solubility needs
• DDA requirement — confirm 95%+ matches your charge-density needs
• Solubility conditions — test at your actual target pH and concentration
• Purity requirements — request the COA for batch-specific ash, moisture, and residual data not published on this page
• Regulatory requirements — confirm this grade meets your market’s documentation needs for your specific use case
• Order volume — sample first if you haven’t validated this material in your formulation yet

Documentation & Quality Verification

• Certificate of Analysis (COA) — available for download
• Safety Data Sheet (SDS/MSDS) — available on request
• Source information — mushroom/fungal origin, as detailed above

Note: this page does not currently claim FDA approval, GRAS status, pharmaceutical certification, ISO certification, or GMP certification. If your application requires any of these, confirm directly with our technical team whether current documentation supports your specific regulatory pathway before ordering.

Request the current COA before placing a production-scale order.

Sample-to-Bulk Purchase Path

1. Review the specification above against your formulation requirements
2. Request the current COA
3. Order the 25 g sample
4. Validate solubility and performance in your actual formulation
5. Confirm the grade (Food or Industrial) matches your application
6. Request bulk pricing for volumes beyond 1 kg
7. Scale to a commercial order

Not sure which grade fits your application? Contact our technical team for guidance before ordering.

Need more than 1 kg? Request bulk pricing our team can quote based on your volume and destination.

For broader sourcing and procurement guidance beyond this single product page, see our Mushroom COS supplier guide. For the complete scientific picture of this material, see our Mushroom Chitosan Oligosaccharide guide.

Frequently Asked Questions

What is Mushroom Chitosan Oligosaccharide? A low-molecular-weight, fully water-soluble form of chitosan derived from fungal/mushroom biomass, produced by breaking down the longer native chitosan polymer into much shorter fragments.

What is the molecular weight of this Mushroom COS? Below 1 kDa, as documented on the current Certificate of Analysis.

Is Mushroom COS water soluble? Yes, fully soluble in water due to its short chain length, without requiring acid pre-treatment.

What is the DDA? 95%+, as documented on the current Certificate of Analysis.

How is COS different from Native Mushroom Chitosan? COS is a much shorter, lower-molecular-weight fragment of the same polymer, fully water-soluble and lower in viscosity. Native mushroom chitosan is the longer, unmodified polymer, generally acid-soluble. See our full comparison.

How does Mushroom COS differ from Shellfish COS? Primarily in biological source; specifications can be similar between the two. See our full comparison.

What grades are available? Food Grade and Industrial Grade.

Can I request a COA? Yes, download it here or request an updated batch-specific version directly.

Can I order a sample before buying bulk? Yes. A 25 g sample is available with free shipping.

Do you supply Mushroom COS in bulk? Yes. 1 kg is the standard order size, with bulk packs available on request. contact our technical team for volume-specific pricing.