HPLC Analysis of Cabernet Sauvignon and Noble Wine Pigment Fractions

摘要

Vitis vinifera cv. Cabernet Sauvignon and Vitis rotundifolia cv. Noble wines were made with different skin contact times to investigate the anthocyanin content of fractions isolated from the wines by low pressure column chromatography. The effect of acetaldehyde addition to wine was also investigated. The fractions were analyzed by a modified HPLC procedure using a 3-solvent gradient and a C-18 reverse phase column. Cabernet Sauvignon fractions contained different combinations of antho- cyanins; Noble wine fractions contained different ratios of five antho- cyanins present in the wines. These differences are hypothesized to influence the long-term stability of the wines.