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| Section2 = | Section3 = | Section7 = }} Methylene cyclopropyl acetic acid (MCPA) is found in lychee seeds and also a toxic metabolite in mammalian digestion after ingestion of hypoglycin. ==Overview== Methylene cyclopropyl acetic acid (MCPA) is a compound found in lychee seeds.〔Gray DO, Fowden (L. alpha-(methylenecyclopropyl)glycine from litchi seeds. ) Biochem J 1962;82:385–9.PMC 1243468〕 It is also a metabolite in mammalian digestion after ingestion of hypoglycin, a rare and potentially toxic amino acid, chemically related to the common amino acid lysine. (Hypoglycin is found in the unripe ackee fruit in Africa.) Dihydrosterculic acid is the major carbocyclic fatty acid in the seed oils of Litchi chinensis. It is a cyclopropene fatty acid; these have been found in many plants of the order Malvales (Sterculiaceae, Malvaceae, Bombaceae and Tiliaceae), in up to 60% of seed oil content, depending on the species but also in leaves, roots and shoots. They are accompanied by small amounts of their cyclopropanoid analogues, i.e. cyclopropyl acetic acid. 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「Methylene cyclopropyl acetic acid」の詳細全文を読む スポンサード リンク
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