LC-DAD-ESI/MSn Determination of Direct Condensation Flavanol−Anthocyanin Adducts in Pressure Extracted Pomegranate (Punica granatum L.) Juice
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- 作者：Enrique Sentandreu ; Jose L. Navarro ; Jose M. Sendra
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2010
- 出版时间：October 13, 2010
- 年：2010
- 卷：58
- 期：19
- 页码：10560-10567
- 全文大小：929K
- 年卷期：v.58,no.19(October 13, 2010)
- ISSN：1520-5118
文摘
Pomegranate (Punica granatum L.) juice, obtained by pressure extraction of the whole fruit, has been analyzed for its flavanol−anthocyanin adduct content using reversed-phase liquid chromatography with diode array detection, coupled to mass spectrometry (ion trap) with electrospray ionization (HPLC-DAD−ESI/MSn), operating in positive ion mode. A total of 35 dimers have been detected, consisting of mono- and disubstituted hexoside derivatives of the adducts between the flavan-3-ols (epi)gallocatechin, (epi)catechin and (epi)afzelechin and the anthocyanidins delphinidin, cyanidin and pelargonidin. In addition, evidence is given for the presence of additional anthocyanin−flavanol adducts in this juice.