Anthocyanidin

Anthocyanidin

:"Not to be confused with Anthocyanin, their sugar containing counterparts."Anthocyanidins are sugar-free counterparts of anthocyanins, can be identified based on the structure of a large group of polymethine dye, the benzopyrylium (chromenylium) ion. In particular anthocyanidins are salt derivatives of the 2-phenylchromenylium cation also known as flavylium cation. As shown in the figure below, the phenyl group at the 2-position, can carry different substituents. The counterion of the flavylium cation is mostly chloride. With this positive charge the anthocyanins differ from other flavonoids.


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  • Anthocyanidin reductase — In enzymology, an anthocyanidin reductase (EC number|1.3.1.77) is an enzyme that catalyzes the chemical reaction:a flavan 3 ol + 2 NAD(P)+ ightleftharpoons an anthocyanidin + 2 NAD(P)H + H+The 3 substrates of this enzyme are flavan 3 ol, NAD+,… …   Wikipedia

  • anthocyanidin — noun An aglycone of an anthocyanin …   Wiktionary

  • Anthocyanidin — An|tho|cy|a|ni|din [↑ Anthocyan u. ↑ idin (4)], das; s, e: die den Anthocyaninen (↑ Anthocyan) als Aglykone zugrunde liegenden 2 Phenyl 2H benzo 1 pyran Derivate mit 3–6 Hydroxy u./od. Methoxygruppen. Versch Anthocyan[id]ine sind als… …   Universal-Lexikon

  • anthocyanidin — an·tho·cy·an·i·din …   English syllables

  • anthocyanidin — ˌsīˈanədə̇n noun ( s) Etymology: International Scientific Vocabulary anth (I) + cyanidin : a plant pigment (as cyanidin, delphinidin, or pelargonidin) formed by the hydrolysis of an anthocyanin and characterized by the same ring structure as the… …   Useful english dictionary

  • Anthocyanin 5-aromatic acyltransferase — In enzymology, an anthocyanin 5 aromatic acyltransferase (EC number|2.3.1.153) is an enzyme that catalyzes the chemical reaction:hydroxycinnamoyl CoA + anthocyanidin 3,5 diglucoside ightleftharpoons CoA + anthocyanidin 3 glucoside 5… …   Wikipedia

  • Anthocyanin 6"-O-malonyltransferase — In enzymology, an anthocyanin 6 O malonyltransferase (EC number|2.3.1.171) is an enzyme that catalyzes the chemical reaction:malonyl CoA + an anthocyanidin 3 O beta D glucoside ightleftharpoons CoA + an anthocyanidin 3 O (6 O malonyl beta D… …   Wikipedia

  • Anthocyanin — Not to be confused with Anthocyanidin, their sugar free counterparts. Anthocyanins (from Greek: polytonic|ἀνθός (anthos) = flower + polytonic|κυανός (kyanos) = blue) are water soluble vacuolar pigments that may appear red, purple, or blue… …   Wikipedia

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