Milligram Capsules
Capsules carry milligrams of about 99% L-ergothioneine from golden oyster. The dose is the isolated amino acid, not a scoop of mushroom powder.
Pleurotus citrinopileatus Extract Ergothioneine Powder
- Mushroom Source
- Golden Oyster
- Latin Name
- Pleurotus citrinopileatus
- Appearance
- White fine powder
- Test Method
- HPLC
Product Description
Weigh this one. L-ergothioneine at about 99%, CAS 497-30-3, is an isolated amino acid from golden oyster, Pleurotus citrinopileatus. It is not a scoop of mushroom extract, and it does not belong on a beta-glucan line.
Capsules, tablets and some serum trials use it at milligram doses. HPLC assay, identity, residual solvents and the source organism are the release. A Pleurotus polysaccharide powder cannot keep the 99% claim.
Specification
| Mushroom Source | Golden Oyster | Latin Name | Pleurotus citrinopileatus |
|---|---|---|---|
| Appearance | White fine powder | Test Method | HPLC |
| Ergothioneine | 99% | CAS No. | 497-30-3 |
Applications
Tablets
Tablets dilute the same isolate in the tablet mass and still deliver it by the milligram.
Antioxidant Trials
Serum trials can take the water-soluble isolate at a low level. Colour and stability belong in that formula test.
Not a Mushroom Extract
The capsule contains the purified amino acid. An oyster polysaccharide powder cannot keep a 99% ergothioneine claim.
FAQ
Is this a golden oyster mushroom extract?
It is the isolated L-ergothioneine obtained from that mushroom, at about 99%, not a polysaccharide extract of the fruiting body.
What is the CAS number?
497-30-3.
How is the assay done?
HPLC. A polysaccharide UV test does not measure ergothioneine.
What dose range should formulation expect?
Milligrams, not the gram doses used for a 30% polysaccharide powder. Weigh it as a high assay.
What else should the COA show?
Identity, residual solvents, heavy metals and microbiology, plus the source organism.
