[Flavonol glycosides of apples (Malus silvestris Mill.). 10. Phenolics of fruits (author's transl)].

The flavonol glycosides of apple skin (Malus silvestris Mill. cv. Golden Delicious) were separated by means of cellulose column chromatography and paper chromatography, and the following compounds were obtained crystalline and identified by usual procedures: quercetin 3-O-alpha-D-galactoside, quercetin 3-O-xyloside, quercetin 3-O-alpha-L-arabinofuranoside, quercetin 3-O-rhamnoside and rutin. Quercetin 3-O-beta-D-glucoside also was identified, but could not be obtained crystallin. A comparison by TLC of 10 very different varieties of apples namely Golden Delicious, Cox Orange, Roter Berlepsch, Cortland, Ingrid Marie, Jonathan, Boskoop, Laxtons Superb, Gloster, and James Grieve demonstrated the same flavonol glycosides and thus showed no distinctions in glycosid pattern between the different varieties of these apples.