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Cell wall cross‐linking by ferulates and diferulates in grasses
Author(s) -
Hatfield Ronald D,
Ralph John,
Grabber John H
Publication year - 1999
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/(sici)1097-0010(19990301)79:3<403::aid-jsfa263>3.0.co;2-0
Subject(s) - polysaccharide , lignin , chemistry , cell wall , dimer , biochemistry , organic chemistry
Ferulate polysaccharide esters in grasses enter into free‐radical condensation reactions in the cell wall. By radical dimerisation of ferulates, polysaccharide–polysaccharide cross‐linking is effected. A range of diferulate isomers are produced, not solely the 5‐5′‐coupled dimer which has been quantified historically. Both ferulates and diferulates enter lignification reactions and become intimately bound up with the lignin complex. Again, under‐quantification is significant since it is not possible to release ferulate or diferulates from some of the structures. Overall, ferulates play a significant role in cell wall development and impact polysaccharide utilisation in grasses. © 1999 Society of Chemical Industry