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About: Variegatic acid     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Substance100019613, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceChemical compoundyago:WikicatBiologicalPigmentsyago:Abstraction100002137yago:ColoringMaterial114984973yago:Material114580897yago:Matter100020827yago:Part113809207yago:PhysicalEntity100001930yago:Pigment114989820yago:Relation100031921chemical compoundyago:Substance100019613 New Facet based on Instances of this Class

Variegatic acid (3,3',4,4'-tetrahydroxypulvinic acid) is an orange pigment found in some mushrooms. It is responsible for the bluing reaction seen in many bolete mushrooms when they are injured. When mushroom tissue containing variegatic acid is exposed to air, the chemical is enzymatically oxidized to blue quinone methide anions, specifically chinonmethid anions. It is derived from xerocomic acid, which is preceded by atromentic acid and atromentin, and its genetic basis is unknown. In its oxidized form (due to the production of a second lactone ring) is variegatorubin, similar to xerocomorubin.