期刊
FOOD CHEMISTRY
卷 125, 期 4, 页码 1398-1405出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2010.10.016
关键词
Cork; Ellagitannins; Flavanoellagitannins; LC DAD/ESI MS; Phenolic compounds; Quercus suber L
资金
- ARCP (Associacao) Rede Competencia em Polimeros) from Portugal
- FCT POCI [CONC-REEQ/275/2001]
The aim of the present work was to identify the extractable phenolic compounds present in cork from Quercus suber L The structures of thirty three compounds were tentatively identified by liquid chromatography coupled to electrospray ionisation mass spectrometry (HPLC-DAD/ESI-MS) The majority of those compounds were gallic acid derivatives in the form of either galloyl esters of glucose (gallotannins) combinations of galloyl and hexahydroxydiphenoyl esters of glucose (ellagitannins) dehydrated tergallic-C-glucosides or ellagic acid derivatives Others were found to correspond to low molecular weight phenolic compounds like acids and aldehydes Mongolicain a flavanoellagitannin in which hydrolysable tannin and flavan-3-ol moieties are connected through a carbon-carbon linkage was also detected in cork from Q suber L The results illustrate the rich array of phenolic compounds present in cork (C) 2010 Elsevier Ltd All rights reserved
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