What are beta-glucans?
Beta-glucans are polysaccharides – long chains of glucose units – that form part of the cell walls of cereals, mushrooms, yeasts and some seaweeds. Nutritionally, they are considered a type of soluble dietary fibre.
Where are they found?
- Cereals: oats and barley are the best-known sources.
- Mushrooms: such as Reishi, Shiitake, Maitake, Lion's Mane, Sun Mushroom and Oyster Mushroom.
- Yeasts and seaweeds.
Are all beta-glucans the same?
No. Their structure varies depending on the source. Cereal beta-glucans have β-(1,3) and β-(1,4) linkages, while those found in mushrooms and yeasts have a β-(1,3) backbone with β-(1,6) branches. Solubility, molecular size and branching all differ between sources, which is why scientists study them separately.
How do we measure beta-glucans?
At Hifas da Terra we analyse the beta-glucan content of our mushroom extracts batch by batch using the Megazyme enzymatic method for mushrooms and yeasts, as part of our Hifas Quality System. The results are published on each product page so you know exactly what you are taking.
How to include beta-glucans in your diet
Porridge, barley in soups and stews, and a variety of culinary mushrooms are simple ways to add beta-glucans to a varied, balanced diet.