Ether linkage between phenolic acids and lignin fractions from wheat straw
A Scalbert, B Monties, JY Lallemand, E Guittet… - Phytochemistry, 1985 - Elsevier
The bonding of the bound-phenolic acids present in three lignin preparations isolated from
wheat straw where determined. p-Coumaric acid was mainly ester-linked whereas 35–75%
of the recovered ferulic acid was ether-linked to milled straw lignin or enzyme lignin. Ferulic
acid ethers accounted for 1.1% dry wt of alkali extracted lignin and might explain the high
solubility of Gramineae lignins in soda. Isolated lignins were associated to hemicelluloses,
principally arabinoglucuronoxylans. The possible existence of ferulic acid cross-links …
wheat straw where determined. p-Coumaric acid was mainly ester-linked whereas 35–75%
of the recovered ferulic acid was ether-linked to milled straw lignin or enzyme lignin. Ferulic
acid ethers accounted for 1.1% dry wt of alkali extracted lignin and might explain the high
solubility of Gramineae lignins in soda. Isolated lignins were associated to hemicelluloses,
principally arabinoglucuronoxylans. The possible existence of ferulic acid cross-links …
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