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OYSTER MUSHROOM
EXTRACT POLYSACCHARIDE (10-30%)
Oyster Mushroom Extract (Pleurotus ostreatus) is a water-based herbal extract produced from organically cultivated oyster mushroom fruiting bodies, standardized to a polysaccharide content of 10% to 30%. The oyster mushroom is a wood-decaying saprophytic fungus: by secreting a range of enzymes, its mycelium breaks down cellulose, hemicellulose, lignin, and pectin into simple sugars that serve as carbon sources, while also absorbing organic acids and alcohols directly. Naturally nutrient-dense, the fruiting body contains approximately 20-23 grams of protein per 100 grams, a broad profile of amino acids, and abundant minerals. In traditional dietary practice it is described as warm in nature and sweet in taste. Appearing as a fine brown to light-yellow powder, this food-grade extract is valued across nutraceutical, functional food, cosmetic, and animal nutrition formulations for its beta-glucan and fungal polysaccharide content.
TECHNICAL SPECIFICATIONS
EVIDENCE & CERTIFICATES
1. Polysaccharide Content Verification (UV-Vis / Phenol-Sulfuric Acid)
Each batch is analyzed for total polysaccharide content against a standard calibration curve using the phenol-sulfuric acid method with UV-Vis detection, confirming the 10%-30% assay range and ensuring batch-to-batch consistency for industrial formulation.
2. Beta-Glucan & Fungal Polysaccharide Profile Confirmation
Representative quality checks confirm the presence of beta-glucan and fungal polysaccharides intrinsic to the oyster mushroom fruiting body, carried through the water-based extraction process that preserves the natural bioactive profile.
3. Heavy Metal & Microbial Compliance
Every batch undergoes ICP-MS heavy metal screening (Pb ≤ 2 ppm, As ≤ 1 ppm, Cd ≤ 1 ppm, Hg ≤ 0.1 ppm) and full microbial analysis (total plate count, yeast & mold, E. coli, Salmonella) to meet food-grade safety standards for global markets.
PRODUCT HIGHLIGHTS
Standardized 10%-30% Polysaccharide Content
Total polysaccharide content is verified against a defined assay range of 10% to 30%, providing formulators with a consistent, quantifiable ingredient specification for dosage design and label claims across production batches.
Rich in Beta-Glucan & Fungal Polysaccharides
The oyster mushroom fruiting body naturally contains beta-glucan and fungal polysaccharides, structural compounds carried through water-based extraction. These naturally occurring constituents form the basis of the product’s value in immune-support nutraceutical formulations.
Naturally Nutrient-Dense Profile
The raw fruiting body is naturally rich in nutrients, containing approximately 20-23 grams of protein per 100 grams along with a wide range of amino acids and abundant minerals — attributes that carry through into the extract and support its use as a functional nutrient source.
Clean, Organic & Food-Grade Sourcing
Sourced from organically cultivated oyster mushrooms with no added carriers, fillers, or excipients. Water-based extraction with no organic solvents keeps the ingredient clean-label and traceable — aligned with the requirements of organic and clean-label product lines.
FUNCTIONAL ROLES
1. Immune-Support Formulation Ingredient
Rich in beta-glucan and fungal polysaccharides, the extract is widely applied in capsules, tablets, and compound powder blends formulated for immune-support nutraceutical applications.
2. Natural Flavor & Functional Nutrient Carrier
Provides natural mushroom flavor along with functional nutrients — protein, amino acids, and minerals — for functional food, solid beverage, and meal replacement powder production.
3. Antioxidant Activity Contributor
Possessing antioxidant activity, this food-grade extract can be added to skincare raw-material formulas as a plant-derived ingredient for soothing and antioxidant purposes.
INDUSTRIAL APPLICATIONS

1. Nutraceutical Formulations
Applied in capsules, tablets, and compound powders for immune-support nutraceutical formulations, leveraging the naturally occurring beta-glucan and fungal polysaccharide content.
2. Functional Foods & Beverages
Provides natural mushroom flavor and functional nutrients for functional food, solid beverage, and meal replacement powder production — a clean-label botanical addition to everyday nutrition products.
3. Skincare & Personal Care
With antioxidant activity, the food-grade extract can be incorporated into skincare raw-material formulas for soothing and antioxidant purposes, supporting the growing natural cosmetics segment.
4. Feed Additive Raw Material
Serves as a feed additive raw material, supplying naturally occurring bioactive components for animal health products requiring a plant-derived functional ingredient.
TECHNICAL FAQ
Q1: What does the 10%-30% polysaccharide content mean in practical terms?
A: It is the total polysaccharide assay range verified for this extract, determined by the phenol-sulfuric acid method with UV-Vis detection. Individual batches are measured within this declared range (for example, a 20% batch or a 25% batch), and the actual value is stated on each batch COA. This provides formulators with a quantifiable specification for dosage design and label documentation.
Q2: How does this extract differ from whole oyster mushroom powder?
A: Whole oyster mushroom powder is simply dried and milled fruiting body with no concentration. This extract is produced through water-based extraction that concentrates the water-soluble polysaccharide fraction to a standardized 10%-30% assay, giving higher functional compound density per unit weight while retaining the broader nutritional profile of the mushroom.
Q3: Is the powder fully water-soluble?
A: The extract is water-dispersible and the water-soluble polysaccharide fraction dissolves partially in water. In beverage and solid-drink applications it forms a uniform suspension; for fully transparent solutions, pre-hydration and filtration may be applied depending on the target clarity of the finished product.
Q4: Is this product suitable for organic and clean-label formulations?
A: Yes. The extract is sourced from organically cultivated oyster mushrooms, produced by water-based extraction with no added carriers or fillers, and contains no organic solvents. Organic certification documents are available on request. We recommend confirming final product compliance with your certifying agent, as certification of finished formulations depends on the complete recipe and processing environment.





