Medicinal mushroom extraction is the term describing the separation of bioactive constituents for health assistance. Key constituents in mushrooms are beta-glucans, which contribute to influence immune system function. The other category, triterpenoids, is concerned with anti-inflammatory and neuroprotective effects in the body. The two most common techniques are hot water extraction and alcohol solvent extraction. Hot water extraction helps bring out polysaccharides, which are water-soluble and help with immune support.