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Pyrolysis‐mass spectrometry of the phenolic constituents of plant cell walls
Author(s) -
Hartley Roy D.,
Haverkamp Johan
Publication year - 1984
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/jsfa.2740350104
Subject(s) - ferulic acid , bran , chemistry , p coumaric acid , pyrolysis , polysaccharide , cell wall , coumaric acid , mass spectrometry , phenolic acid , chromatography , raw material , organic chemistry , biochemistry , antioxidant
Cell walls of plant parts of maize, barley, Italian ryegrass, wheat bran, lucerne and red clover were subjected to low voltage pyrolysis‐mass spectrometry. The ion intensity at m/z 120, which is characteristic of p ‐coumaric acid, was significantly correlated (r=0.99) with the p ‐coumaric acid content of the walls; the ion intensity at m/z 150, characteristic of ferulic acid, was present in the spectra of the graminaceous walls. Factor analysis of the pyrolysis‐mass spectra indicated that some, at least, of the p ‐coumaric and ferulic acid constituents of the walls are bound to pentosans, and suggested that not all the aromatic constituents of the walls are bound to polysaccharides.