Compositional Differentiation of Maize Hybrid Stovers Using Analytical Pyrolysis and High-Performance Liquid Chromatography
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- 作者：Guido C. Galletti ; James B. Reeves ; III ; Paola Bocchini ; and Carlo I. Muscarella
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：1997
- 出版时间：May 1997
- 年：1997
- 卷：45
- 期：5
- 页码：1715 - 1719
- 全文大小：116K
- 年卷期：v.45,no.5(May 1997)
- ISSN：1520-5118
文摘
Pyrolysis/gas chromatography/mass spectrometry (PY/GC/MS) andhigh-performance liquid chromatography with electrochemical detection (HPLC-ED) were carried outon stover samples fromten commercial maize hybrids grown in northern Italy. Theobjective was to check whether thecomposition of the cell wall lignin and polysaccharides, as obtained byPY/GC/MS, and the phenolicacid content, as determined by HPLC-ED, were significantly differentin the various hybrids.Neutral detergent fiber (NDF) and crude protein content were alsodetermined. Thirty pyrolysisfragments were identified mainly deriving from polysaccharides andlignin. Vanillic, p-coumaric,and ferulic acids were quantified by HPLC-ED. Analysis ofvariance and the Waller-Duncan testshowed significant differences in all the examined parameters.Correlations were also found amongNDF, PY/GC/MS lignin markers, p-coumaric, and ferulic acidsand among vanillic acid, p-coumaricacid, and PY/GC/MS lignin markers.Keywords: Maize stover; lignin; phenolic; pyrolysis/gas chromatography/massspectrometry; liquidchromatography