At present, the research mainly focuses on the function of Lentinus edodes as an immunostimulant and its ability to resist many diseases, including atherosclerosis, cancer, bacterial and viral infections.

Studies have shown that there are a lot of substances in Lentinus edodes, among which Lentinus edodes mycelium (LEM) performs well in treating patients infected by human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). The antiviral activity of Lentinus edodes LEM may be due to its ability to induce interferon, a natural chemical that produces immunity to virus-infected cells.

The ability of Lentinus edodes to reduce blood coagulation was also studied. Therefore, due to its anticoagulant properties, people often emphasize that patients must avoid eating too many mushrooms for a long time when taking hemodilution drugs. Lentinus edodes extract contains 10% or 20% based on polysaccharide (lentinan).

Lentinus edodes essence is made from high-quality Lentinus edodes by technological fermentation.

Lentinus edodes extract is rich in lentinan, which is β-( 1→6) glucan with β-( 1→3) branch. Lentinus edodes extract also contains lentinan and lentinan.