Analysis of phenolic compounds in cork from Quercus suber L by HPLC-DAD/ESI-MS

被引:90
作者
Fernandes, Ana [1 ]
Sousa, Andre [1 ]
Mateus, Nuno [1 ]
Cabral, Miguel [2 ]
de Freitas, Victor [1 ]
机构
[1] Univ Porto, Fac Ciencias, Dept Quim, Ctr Invest Quim, P-4169007 Oporto, Portugal
[2] Amorim & Irmaos SA, P-4536902 Mozelos Vfr, Portugal
关键词
Cork; Ellagitannins; Flavanoellagitannins; LC DAD/ESI MS; Phenolic compounds; Quercus suber L; TANNING COMPOUNDS; OAK; ELLAGITANNINS; WOOD; POLYPHENOLS; CHESTNUT; FRENCH; WINES; ACID;
D O I
10.1016/j.foodchem.2010.10.016
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
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
引用
收藏
页码:1398 / 1405
页数:8
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