Pyrolysis-GC-MS characterization of forage materials

Pyrolysis-GC-MS pyrograms from a series of alfalfa preparations, a grass, an angiosperm wood, a cellulose, and an arabinoxylan were obtained under pyrolytic conditions optimal for aromatic components of plant cell walls. Approximately 130 pyrolytic fragments have been identified by a combination of...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 1991-08, Vol.39 (8), p.1426-1437
Main Authors: Ralph, John, Hatfield, Ronald D
Format: Article
Language:English
Subjects:
ALFALFA
ALIMENT POUR ANIMAUX
Biological and medical sciences
BROMUS INERMIS
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
Feed and pet food industries
Food industries
Fundamental and applied biological sciences. Psychology
LUZERNE
PARED CELULAR
PAROI CELLULAIRE
PIENSOS
PIROLISIS
PYROLYSE
SALIX
TECHNIQUE ANALYTIQUE
TECNICAS ANALITICAS
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Summary:Pyrolysis-GC-MS pyrograms from a series of alfalfa preparations, a grass, an angiosperm wood, a cellulose, and an arabinoxylan were obtained under pyrolytic conditions optimal for aromatic components of plant cell walls. Approximately 130 pyrolytic fragments have been identified by a combination of mass spectral interpretation, comparison with literature data, and, where possible, confirmation with authentic compounds. Several new fragments not previously noted in pyrograms have been conclusively assigned including both guaiacyl- and syringylpropyne and a range of alcohols. Diagnostic peaks from arabinose and xylose components of forages were found, along with markers for protein. Pyrolysis-GC-MS was particularly valuable for screening and differentiating p-coumaric acid and ferulic acid derivatives in tissues
ISSN:0021-8561
1520-5118
DOI:10.1021/jf00008a014