Isolation and structures of oligomeric wine pigments by bisulfite-mediated ion-exchange chromatography
Date
2001
Authors
Asenstorfer, R.
Hayasaka, Y.
Jones, G.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Agricultural and Food Chemistry, 2001; 49(12):5957-5963
Statement of Responsibility
Robert E. Asenstorfer, Yoji Hayasaka and Graham P. Jones
Conference Name
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.