fagopyrin

fagopyrin

a red, fluorescent pigment of the helianthrone family, present in Fagopyrum sagittatum (buckwheat), and causing primary photosensitization.
References in periodicals archive ?
Buckwheat sprouts contain a toxin called fagopyrin that can cause extreme sensitivity to light.
Buckwheat greens, sometimes used in green juices, contain a pink pigment called fagopyrin.