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TitleDeep blue anthocyanins from blue Dianella berries
Publication TypeJournal Article
Year of Publication2001
AuthorsBloor, S.J.
Pagination923 - 927
Date Published2001
ISSN00319422 (ISSN)
Keywords2 acetyl 1,5 dihydroxy 3 methyl 8 o [xylosyl(1-6)glucosyl]naphthalene, 3,7,3',5' tetraglucoside, angiosperm, anthocyanin, Anthocyanins, article, chemical structure, chemistry, Chromatography, High Pressure Liquid, delphinidin, Dianella, Dianella nigra, high performance liquid chromatography, Liliaceae, Magnetic Resonance Spectroscopy, Mass spectrometry, Molecular Structure, nonhuman, nuclear magnetic resonance spectroscopy, pH, phytochemistry, plant, proton nuclear magnetic resonance, Spectrophotometry, Ultraviolet, ultraviolet spectrophotometry, unclassified drug
AbstractThree anthocyanins, all acylated delphinidin 3,7,3′,5′-tetraglucosides, and a naphthalene glycoside, 2-acetyl-1,5-dihydroxy-3 methyl-8-O(xylosyl-(l→6)-glucosyl) naphthalene, have been isolated from the berries of two Dianella species, D. nigra and D. tasmanica. The anthocyanins show exceptional blueness at in vivo pH values due to effective intramolecular copigmentation involving p-coumaroyl-glucose units (GC) at the 7, 3′ and 5′ of the delphinidin anthocyanidin. Evidence is presented to show that the effectiveness of the copigmentation can be ranked; 3′,5′ GC > 7 GC > 3 GC. © 2001 Elsevier Science Ltd. All rights reserved.

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