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New pyranoanthocyanins from blackcurrant seeds

โœ Scribed by Yinrong Lu; L.Yeap Foo; Yan Sun

Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
85 KB
Volume
43
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Four new pyranoanthocyanins, namely pyranocyanin C and D and pyranodelphinin C and D, possessing the pyrano[4,3,2-de]-1-benzopyrylium core structure were isolated from an extract of blackcurrant seeds. Their chemical structures were elucidated by spectral methods and confirmed by chemical synthesis involving blackcurrant anthocyanins and p-coumaric acid. It is postulated that this condensation reaction plays a significant part in the evolution of red wine colour.

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## Abstract For Abstract see ChemInform Abstract in Full Text.