<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Graça, José</style></author><author><style face="normal" font="default" size="100%">Santos, Sara</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Linear Aliphatic Dimeric Esters from Cork Suberin</style></title><secondary-title><style face="normal" font="default" size="100%">Biomacromolecules</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">cork suberin</style></keyword><keyword><style  face="normal" font="default" size="100%">dimeric esters</style></keyword><keyword><style  face="normal" font="default" size="100%">Dimerization</style></keyword><keyword><style  face="normal" font="default" size="100%">Electrospray Ionization</style></keyword><keyword><style  face="normal" font="default" size="100%">Electrospray Ionization: metho</style></keyword><keyword><style  face="normal" font="default" size="100%">Esters</style></keyword><keyword><style  face="normal" font="default" size="100%">Esters: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">GC-MS (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">Lipids</style></keyword><keyword><style  face="normal" font="default" size="100%">Mass</style></keyword><keyword><style  face="normal" font="default" size="100%">Membrane Lipids</style></keyword><keyword><style  face="normal" font="default" size="100%">Membrane Lipids: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular Structure</style></keyword><keyword><style  face="normal" font="default" size="100%">Sensitivity and Specificity</style></keyword><keyword><style  face="normal" font="default" size="100%">Spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">Trees</style></keyword><keyword><style  face="normal" font="default" size="100%">Trees: chemistry</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">7</style></volume><pages><style face="normal" font="default" size="100%">2003-2010</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Cork suberin was partially depolymerized by methanolysis catalyzed by calcium hydroxide. Analysis by GC-MS of the methanolysate showed suberin monomers, including glycerol and long-chain α,?-diacids and ?-hydroxyacids. ESI-MS analysis of the methanolysate showed, besides the aliphatic monomers, suberin oligomers, including linear dimeric esters of α,?-diacids and ?-hydroxyacids. Two types of dimeric esters were identified:? a α,?-diacid linked to a ?-hydroxyacid and two inter-linked ?-hydroxyacids. The α,?-diacids and ?-hydroxyacids found as monomer residues in the dimeric esters were mainly the C18 monomers with midchain substituents. The identification of these dimeric esters was based in their CID-MS/MS spectra and confirmed after synthesis of model compounds. The occurrence of inter-esterified long-chain monomers in suberin brings a new insight in the understanding of the polyester structure of this biopolymer.</style></abstract><accession-num><style face="normal" font="default" size="100%">16768426</style></accession-num><notes><style face="normal" font="default" size="100%">From Duplicate 1 (Linear Aliphatic Dimeric Esters from Cork Suberin - Graça, José; Santos, Sara)</style></notes><research-notes><style face="normal" font="default" size="100%">From Duplicate 1 (Linear Aliphatic Dimeric Esters from Cork Suberin - Graça, José; Santos, Sara)</style></research-notes></record></records></xml>