Determination of limonoate and nomilinoate A-ring lactones in citrus juices by liquid chromatography–electrospray ionization mass spectrometry

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• 作者：Breksa ; Andrew P. ; Zukas ; Audrius A. ; Manners ; Gary D.
• 关键词：Limonoids ; Citrus ; Solid-phase extraction ; Juice analysis
• 刊名：Journal of Chromatography A
• 出版年：2005
• 出版时间：February 4, 2005
• 年：2005
• 卷：1064
• 期：2
• 页码：187-191
• 全文大小：127 K

文摘

The development of delayed bitterness in citrus products is a major problem to citrus producers and juice processors worldwide. A rapid and sensitive liquid chromatography–electrospray ionization mass spectrometry (LC–ESI-MS) method has been developed to quantify the recognized precursors of limonoid derived delayed bitterness, limonoate and nomilinoate A-ring lactones, in a wide variety of citrus juices. The limonoid A-ring lactones were isolated by solid-phase extraction from juice samples, analyzed by negative ion LC–ESI-MS and quantified utilizing the standard addition method.