Oyster Mushroom
Pleurotus ostreatus
| Kingdom | Fungi |
| Class | Agaricomycetes |
| Order | Agaricales |
| Family | Pleurotaceae |
| Genus | Pleurotus |
| Species | P. ostreatus |
Oyster Mushroom
The Oyster Mushroom bridges the worlds of culinary delight and medicinal significance. Widely cultivated across South Africa, it is also found wild on dead hardwoods. Its medicinal properties — centred on cholesterol-reducing lovastatin, immune-active beta-glucans, and anti-tumour polysaccharides — make it one of the most practically accessible functional foods available.
Pleurotus ostreatus contains lovastatin (a natural statin), which inhibits HMG-CoA reductase and contributes to cholesterol reduction. Its beta-glucan content activates the innate immune system via the Dectin-1 receptor pathway. Pleuran — the primary beta-glucan extract — has been the subject of multiple clinical studies. Additionally, Pleurotus is one of the few fungi shown to degrade petroleum hydrocarbons (mycoremediation) and is used industrially for bioremediation projects.
Bioactive Compounds & Medicinal Properties
| Lovastatin | Natural statin — HMG-CoA reductase inhibitor; cholesterol reduction |
| Beta-glucans | Pleuran — studied in respiratory immunity, cancer support |
| Eritadenine | Amino acid derivative contributing to cholesterol lowering |
| Anti-tumour | Polysaccharide fractions studied against colon and breast cancer cell lines |
| Iron content | High bioavailable iron — useful in dietary supplementation |
| Preparation | Fresh or dried as food; extract standardised to beta-glucan content |
