ANALYSIS OF RICE (ORYZA-SATIVA L) LIGNIN BY PYROLYSIS-GAS CHROMATOGRAPHY

被引：23
|
作者：
KURODA, KI
SUZUKI, A
KATO, M
IMAI, K
机构：
[1] Wood Chemistry, Institute of Agricultural and Forest Engineering, University of Tsukuba, Tsukuba, Ibaraki
[2] Institute of Agriculture and Forestry, University of Tsukuba, Tsukuba, Ibaraki
来源：
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 1995年 / 34卷 / 01期
关键词：
P-COUMARIC ACID; FERULIC ACID; PADDY RICE (ORYZA SATIVA L); LIGNIN; NITROBENZENE OXIDATION; PYROLYSIS; PYROLYSIS GAS CHROMATOGRAPHY; PYROLYSIS GAS CHROMATOGRAPHY MASS SPECTROMETRY; 4-VINYLGUAIACOL; 4-VINYLPHENOL;
D O I：
10.1016/0165-2370(94)00850-Z
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Curie-point pyrolyses of four paddy rice (Oryza sativa L.) cultivars were carried out at 500 degrees C for 4 s. The products were analyzed by gas chromatography (GC) and/or GC/mass spectrometry. Analytical pyrolysis showed that rice lignin is a mixed p-hydroxyphenyl-guaiacyl-syringyl lignin, as did the results of alkaline nitrobenzene oxidation. The main pyrolysis products were 4-vinylphenol (VP) and 4-vinylguaiacol (VG). The determination of the vinyl compounds showed that the yield of VP had good correlation with the cultivars and the maturity of rice. p-Coumaric and ferulic acids in rice were determined on the basis of the yields of VP and VG produced on pyrolysis. The results were in good agreement with the amount of the acids determined by hot alkaline hydrolysis.
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页码：1 / 12
页数：12
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