2000
DOI: 10.1021/jf9909398
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Abstract: The monomeric composition of suberin extracts obtained by gradual alkaline methanolysis of Quercus suber cork was determined by gas chromatography-mass spectrometry (GC-MS). Results show that 1-alkanols and alkanoic and alpha,omega-alkanedioic acids are preferentially removed upon mild alkaline conditions, whereas mid-chain-modified omega-hydroxyalkanoic acids are preferentially removed under stronger alkaline conditions. Saturated omega-hydroxyalkanoic acids are found to be abundant in all suberin extracts. T… Show more

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Cited by 83 publications
(113 citation statements)
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“…1). Together with the relatively strong decrease in the ester-linked fraction of C 22 , C 24 N-hydroxy acids and, to a lesser extent, C 18 -C 28 a, N-dioic acids, this again suggests that these long-chain (NC 16 ) N-hydroxy and a, N-dioic acids are more easily released from the biopolyester structure than other ester-linked aliphatic buildingblocks (Lopes et al, 2000;Nierop et al, 2003), including C 16 N-hydroxy acid (Fig. 1).…”
Section: Changes In Molecular Composition Of Root-derived Ester-linkementioning
confidence: 93%
See 1 more Smart Citation
“…1). Together with the relatively strong decrease in the ester-linked fraction of C 22 , C 24 N-hydroxy acids and, to a lesser extent, C 18 -C 28 a, N-dioic acids, this again suggests that these long-chain (NC 16 ) N-hydroxy and a, N-dioic acids are more easily released from the biopolyester structure than other ester-linked aliphatic buildingblocks (Lopes et al, 2000;Nierop et al, 2003), including C 16 N-hydroxy acid (Fig. 1).…”
Section: Changes In Molecular Composition Of Root-derived Ester-linkementioning
confidence: 93%
“…N-Hydroxy acids have been suggested to be more easily released from the biopolyester structure than other ester-linked aliphatic building-blocks upon base hydrolysis as well as decomposition in soil (Lopes et al, 2000;Nierop et al, 2003). They may form a more accessible part of the biopolyester (Nierop et al, 2003).…”
Section: Introductionmentioning
confidence: 99%
“…There is a large reduction of the absorption peak at 1610 cm -1 , which is assigned to the elongation of the aromatic C=C units, as well as the absorption peak at 1510 cm -1 , which is characteristic of lignin structures in both the solid residue and the liquefied material. The peaks around 2930 and 1740 cm -1 are indicative of suberin, corresponding to C-H stretching and to the C=O band, respectively, of suberin (Graça and Pereira 2000;Lopes et al 2000). The peak located at 1265 cm -1 is assigned to the epoxy ring, which is also characteristic of suberin (Graça and Pereira 2000).…”
Section: Cork Liquefactionmentioning
confidence: 97%
“…The quantitative composition of monomeric mixtures obtained depends on the method, but consists mostly of long-chain (16-24 carbon atoms) aliphatic dicarboxylic acids, ω-hydroxy fatty acids, very long chain (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) carbons) fatty acids, fatty alcohols, and glycerol together with a small amount of aromatic compounds such as coumaric and ferulic acids (1)(2)(3)(4)(5). The distribution of the individual suberin monomeric components and compound classes varies between different plant species and parts of plants.…”
Section: Introductionmentioning
confidence: 99%