Eriodyctiol

Eriodyctiol is a flavanone, a type of flavonoid, found in certain plants, notably in the hops species *Humulus lupulus*, which is used in brewing beer. It is also present in other plants such as *Eriodictyon californicum*, commonly known as yerba santa.

Chemically, eriodyctiol is characterized by its 2,3-dihydro-2-(4-hydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one structure. It is closely related to other flavanones like naringenin and hesperetin. Eriodyctiol is known to occur as a glycoside, meaning it is attached to a sugar molecule, in some plant sources.

Research has explored the potential biological activities of eriodyctiol. Studies have investigated its antioxidant properties, suggesting it can help neutralize harmful free radicals in the body. Additionally, there is scientific interest in its anti-inflammatory effects. Some investigations have also looked into its potential as a xanthine oxidase inhibitor, an enzyme involved in the production of uric acid.

The presence of eriodyctiol in hops contributes to the complex flavor profile of beer. While its specific sensory contributions are part of a larger array of compounds, its chemical structure places it within the group of compounds that influence bitterness and aroma. Further scientific exploration continues to elucidate the full spectrum of its biological roles and potential applications.