Shiitake mushroom extract is produced from the cultivated fruiting body of Lentinula edodes and standardised on its polysaccharide content. This article covers the composition, how the extract is standardised, the documentation a B2B buyer should expect, and the formats the ingredient is used in.

Composition and Source
Shiitake is one of the most widely cultivated culinary and extract mushrooms. The commercial extract is produced from the fruiting body, and the fractions that matter to a specification are the polysaccharides and a small set of characteristic secondary compounds.
- Polysaccharides and β-glucans – the water-soluble fraction and the usual basis for standardisation; the beta-glucan structures are the group the ingredient is normally bought on.
- Ergothioneine – a compound characteristic of shiitake and a few other fungi.
- Melanin and other pigments – carried over from the fruiting body.
- Vitamins (group B; ergocalciferol where UV-treated) – present in the fresh mushroom and reflected to a degree in the extract.
Because the extract is produced from the cultivated fruiting body, batch-to-batch variation in the polysaccharide content is a normal consideration, and the standardisation and the test method should both be stated in the specification.
Standardisation and Specification
Standard market grades are available, and custom specifications can be produced to order. Exact parameters are confirmed per order and stated in the batch Certificate of Analysis.
| Item | Value |
| Product name | Shiitake mushroom extract |
| Botanical source | Lentinula edodes (Berk.) Pegler |
| Part used | Fruiting body |
| Extraction | Hot-water extraction, followed by drying |
| Standardisation | Polysaccharides (β-glucans); standard market grades available, custom standardisation on request |
| Test method | UV / HPLC; the method is stated with the specification |
| Appearance | Brown to dark-brown fine powder; colour confirmed per order |
| Particle size | Standard grades available; custom mesh size on request |
| Packaging | 25 kg fiber drum with food-grade inner liner |
| Documents | COA, MSDS, specification sheet, allergen statement |
| Certifications | ISO9001, ISO22000, FSSC22000, HACCP, cGMP, FAMI-QS; HALAL, KOSHER, NOP, EOS where applicable |
Quality and Documentation
Manufacturing is carried out under ISO9001, ISO22000, FSSC22000, HACCP, cGMP and FAMI-QS management systems, and the product range is certified for HALAL, KOSHER, NOP and EOS (organic) where applicable. Certificates are available on request.
- Certificate of Analysis (batch specific)
- Material Safety Data Sheet
- Technical specification sheet
- Allergen statement
- Microbiology and heavy-metal test data as agreed for the target market
Applications
- Capsules, tablets and powder blends for dietary supplements
- Savoury and umami-flavour applications in food
- Functional foods and beverage formulations
- Multi-ingredient botanical blends where a standardised polysaccharide content is required
Related Products
Related materials in the range include shiitake mushroom extract, shiitake mushroom powder and chaga mushroom extract powder.
Samples and Enquiries
Evaluation samples, specification sheets and bulk quotations are available for qualified enquiries. Contact liu@wellgreenxa.com or use the contact form.
This page describes an industrial botanical ingredient for business-to-business use. It is not intended to diagnose, treat, cure or prevent any disease, and is not intended for direct consumer use.



