malic acid

malic acid
Hydroxysuccinic acid; an acid found in apples and various other tart fruits; an intermediate in the tricarboxylic acid cycle, the glyoxylate cycle, and in a shuttle system. SYN: monohydroxysuccinic acid.

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malic acid n any of three optical isomers of a crystalline dicarboxylic acid C4H6O5 esp the one found in various plant juices and formed as an intermediate in the Krebs cycle

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mal·ic ac·id (maґlik) (malґik) an intermediate in the tricarboxylic acid (Krebs) cycle, formed from fumaric acid and itself oxidized to form oxaloacetic acid; found in apples, pears, and many other fruits; its action is similar to that of tartaric acid, and it is a permitted food additive.

Medical dictionary. 2011.

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  • Malic acid — Malic Ma lic, a. [L. malum an apple: cf. F. malique.] (Chem.) Pertaining to, or obtained from, apples; as, malic acid. [1913 Webster] {Malic acid}, (Chem.) a hydroxy acid ({HO.CO.CH2.CH(OH).CO.OH}) obtained from unripe fruit (such as green apples …   The Collaborative International Dictionary of English

  • malic acid — [mal′ik, mā′lik] n. [Fr acide malique < L malum < Gr mēlon, apple] a crystalline acid, COOHCH2CH(OH)COOH, occurring in apples and other fruits …   English World dictionary

  • Malic acid — Not to be confused with maleic acid or malonic acid. Malate redirects here. For the district in Manila, see Malate, Manila. Malic acid …   Wikipedia

  • malic acid — noun Etymology: French acide malique, ultimately from Latin malum apple, from Greek mēlon, malon Date: 1790 a crystalline dicarboxylic acid C4H6O5; especially the levorotatory isomer of malic acid that is found in various fruits (as apples) and… …   New Collegiate Dictionary

  • malic acid — obuolių rūgštis statusas T sritis chemija formulė HOOCCH(OH)CH₂COOH atitikmenys: angl. malic acid rus. яблочная кислота ryšiai: sinonimas – hidroksibutano dirūgštis …   Chemijos terminų aiškinamasis žodynas

  • malic acid — [ malɪk] noun Chemistry a crystalline acid present in unripe apples and other fruits. Origin C18: malic from Fr. malique, from L. malum apple …   English new terms dictionary

  • malic acid — noun A colourless crystalline dicarboxylic acid, hydroxy malonic acid, found in wine, apples and other fruit; it is converted to lactic acid by malo lactic fermentation. Syn: E296, acidity regulator …   Wiktionary

  • malic acid — /mælɪk ˈæsəd/ (say malik asuhd) noun a crystalline, dibasic hydroxy acid, C2H3OH(COOH)2, occurring in small amounts in almost all living cells as a component of the citric acid cycle, and in greater amounts in apples, grapes, and other fruits …   Australian-English dictionary

  • malic acid — n. acid in fruits (such as in apples and tomatoes) …   English contemporary dictionary

  • malic acid — n. an organic acid found in unripe apples and other fruits. Etymology: F malique f. L malum apple …   Useful english dictionary

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