Quantitative Methods for Anthocyanins.

Abstract

SUMMARY— The evaluation of the various purification methods was based, in the order of their importance, on the recovery of individual and total anthocyanins and on the concentrating power. Amberlite CG‐50 ion exchange resin was the best, but basic lead acetate was also satisfactory. Polyamide did not concentrate the anthocyanins and the use of neutral lead acetate resulted in poor recoveries.