Eritadenine is a bioactive compound primarily found in shiitake mushrooms (Lentinula edodes). It is known for its cholesterol-lowering effects, which are attributed to its ability to alter lipid metabolism. Eritadenine works by inhibiting the activity of S-adenosylhomocysteine hydrolase, leading to a decrease in plasma cholesterol levels. This compound is of significant interest in nutritional science and functional foods due to its potential health benefits. Eritadenine is a derivative of adenine and contains a unique ethylbutyric acid side chain. It is moderately soluble in water and alcohol, but insoluble in fats, which influences its bioavailability and application in food products.