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Identification and quantitation of flavonols in rowanberry (Sorbus aucuparia L.) juice


Eight flavonols were detected in rowanberry juice, six quercetin and two kaempferol glycosides which were identified as quercetin 3-O-galactoside, quercetin 3-O-glucoside, two quercetin 3-O-dihexosides, quercetin pentose-hexoside and quercetin hexose-pentoside and two kaempferol dihexosides. The total content of identified flavonols in the rowanberry juice was 291 mg L–1. Quercetin dihexosides contributed 78% to the flavonol content. However, chlorogenic and neochlorogenic acid were the most abundant phenolic compounds in the rowanberry juice (544 and 273 mg L–1, respectively). From a nutritional point of view, rowanberry juice provides 70 mg of flavonols and 196 mg of chlorogenic acids per serving. HPLC-MSn and HPLC-DAD in combination with solid phase extraction were used to obtain these results.

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Revised version: 25 January 2001

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Gil-Izquierdo, .A., Mellenthin, .A. Identification and quantitation of flavonols in rowanberry (Sorbus aucuparia L.) juice. Eur Food Res Technol 213, 12–17 (2001).

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  • Rowanberry juice Quercetin Kaempferol Flavonol glycosides Mass spectrometry