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|Section2= |Section3= }} Homogentisic acid (2,5-dihydroxyphenylacetic acid) is a phenolic acid found in ''Arbutus unedo'' (strawberry-tree) honey. It is also present in the bacterial plant pathogen ''Xanthomonas campestris pv. phaseoli'' as well as in the yeast ''Yarrowia lipolytica'' where it is associated with the production of brown pigments. It is less commonly known as melanic acid, the name chosen by William Prout. ==Human pathology== Accumulation of excess homogentisic acid and its oxide, named alkapton, is a result of the failure of the enzyme homogentisic acid 1,2-dioxygenase (typically due to a mutation) in the degradative pathway of tyrosine, consequently associated with alkaptonuria. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「homogentisic acid」の詳細全文を読む スポンサード リンク
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