Adulteration of Fruit Juices: Dihydrochalcones as Quality Markers for Apple Juice Identification

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• 作者：Versari ; A. ; Biesenbruch ; S. ; Barbanti ; D. ; Farnell ; P. J.
• 刊名：Lebensmittel-Wissenschaft und -Technologie
• 出版年：1997
• 出版时间：September, 1997
• 年：1997
• 卷：30
• 期：6
• 页码：585-589
• 全文大小：86.1 K

文摘

Some phenolic compounds, (+) catechin, (−) epicatechin, chlorogenic acid, phloretin glucoside (phloridzin) and phloretin xyloglucoside, in several juice samples were separated and identified by reversed phase high performance liquid chromatography/diode array detection (RP-HPLC/DAD). Dihydrochalcones were identified as ‘markers’ in apple samples, their content was calculated and a ‘threshold concentration’ for detectable addition was evaluated. The direct injection method gives excellent recovery, accuracy and precision with a detection limit of 1.6 mg/L.