SUMMARY— The anthocyanin pigments of Red Delicious apples were isolated and identified from their chromatographic, spectral and chemical properties. The maior pigment was cyanidin‐3‐galactoside. The minor pigments were cyanidin‐3‐arabinoside and cyanidin‐7‐arabinoside. Cyanidin‐7‐arabino‐side was isolated from a natural source for the first time. Three pigments were isolated from 74 varieties of apples, two from six varieties and only one from two varieties.
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SUN et al. (1967) studied this question.