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Type: Journal article
Title: Isolation and structures of oligomeric wine pigments by bisulfite-mediated ion-exchange chromatography
Author: Asenstorfer, R.
Hayasaka, Y.
Jones, G.
Citation: Journal of Agricultural and Food Chemistry, 2001; 49(12):5957-5963
Publisher: Amer Chemical Soc
Issue Date: 2001
ISSN: 0021-8561
Statement of
Robert E. Asenstorfer, Yoji Hayasaka and Graham P. Jones
Abstract: Methods have been developed that are based on cation exchange chromatography in the absence and presence of excess bisulfite for the isolation of wine pigments from Australian red wine and grape marc extract. The pigments were identified using HPLC and electrospray ionization mass spectrometry. The mass spectral data indicate that these pigments are C4-substituted anthocyanins with a tetracyclic structure. The pigments form a series of closely related oligomeric pigments which include those previously described in the literature, such as pigment A and vitisin A, as well as some newly identified pigments.
Keywords: Wine pigments
oligomeric pigments
anthocyanin polymers
DOI: 10.1021/jf011261a
Appears in Collections:Aurora harvest 7
Wine Science publications

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