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Knud Erik Bach Knudsen

Ferulic Acid Dehydrodimer and –Dehydrotrimer Profiles of Distillers Dried Grains with Solubles from Different Cereal Species

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  • Mads Brøgger Pedersen, Danmark
  • Mirko Bunzel, Karlsruhe Institute of Technology (KIT), Danmark
  • Judith Schäfer, Karlsruhe Institute of Technology (KIT), Danmark
  • Knud Erik Bach Knudsen
  • Jens F Sørensen, Dupont Industrial Biosciences, Danmark
  • Shukun Yu, Dupont Industrial Biosciences, Danmark
  • Helle Nygaard Lærke
Ferulic acid dehydrodimers- (DFA) and trimers (TriFA) ester-linked to plant cell wall polymers may not only cross-link cell wall polysaccharides, but also other cell wall components including proteins and lignin, thus, enhancing the rigidity and potentially affect the enzymatic degradation of the plant cell wall. Corn-, wheat-, and mixed cereal distillers dried grains with solubles (DDGS) were investigated for composition of DFAs and TriFAs by reversed phase high performance liquid chromatography with ultra violet detection. Corn DDGS contained 5.3 and 5.9 times higher contents of total DFAs than wheat- and mixed DDGS, respectively. Furthermore, the contents of total TriFAs were 5.7 and 6.3 times higher in corn DDGS than in wheat- and mixed DDGS, respectively. In addition, both corn grains and corresponding DDGS had similar profiles of individual DFAs and TriFAs, indicating that ferulic acid cross-links in the corn cell wall are presumably not modified during fermentation and DDGS processing.
OriginalsprogEngelsk
TidsskriftJournal of Agricultural and Food Chemistry
Vol/bind63
Nummer7
Sider (fra-til)2006-2012
Antal sider7
ISSN0021-8561
DOI
StatusUdgivet - 9 feb. 2015

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