Phenolic compounds as cross-links of plant derived polysaccharides

M. Bunzel, J. Ralph and H. Steinhart
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M. Bunzel: Institute of Biochemistry and Food Chemistry, University of Hamburg, Hamburg, Germany
J. Ralph: Institute of Biochemistry and Food Chemistry, University of Hamburg, Hamburg, Germany
H. Steinhart: Institute of Biochemistry and Food Chemistry, University of Hamburg, Hamburg, Germany

Czech Journal of Food Sciences, 2004, vol. 22, issue SpecialIssue, S64-S67

Abstract: Plant cell wall polysaccharides are partially cross-linked via phenolic compounds. As shown in the past, the most important phenolic compounds to cross-link plant cell-wall polysaccharides are ester-linked ferulic acid dimers, but p-coumarate dimers were also shown to be potential cross-linking compounds. Recently, ferulic acid dimers were identified and quantified in a range of cereal grains. The isolation of 8-O-4-dehydrodiferulic aciddiarabinoside from maize bran shows that diferulic acids are able to form intermolecular cross-links between arabinoxylans. The more recently identified sinapic acid dehydrodimers and ferulic acid dehydrotrimers provide additional contributions to building up a strong network of plant cell wall polysaccharides.

Keywords: plant cell walls; arabinoxylans; ferulic acid; ferulate dimers and trimers; sinapate dimers (search for similar items in EconPapers)
Date: 2004
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DOI: 10.17221/10613-CJFS

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