Characterization of Jatropha curcas lignins
Characterization of Jatropha curcas lignins
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麻风树木质素的表征
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
T. Umezawa
中科院分区：
文献类型：
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作者：
M. Yamamura;K. Akashi;A. Yokota;T. Hattori;Shiro Suzuki;D. Shibata;T. Umezawa
采用巯基乙酸法、硫代酸法和硝基苯氧化法对小桐子木质素进行了定性和定量分析。种皮中木质素含量最高，为49.4%;茎中木质素含量为15.9%，在被子植物常见木质素含量范围内。各器官的木质素芳香组分均由愈创木基和胡萝卜基单元组成。硝基苯的氧化反应表明，果皮和茎中愈创木基木质素和异辛基木质素的比例高于其它器官。本研究为麻疯树木材的综合利用提供了基础数据。
Lignins of Jatropha curcas organs were qualitatively and quantitatively characterized by thioglycolic acid, thioacidolysis, and nitrobenzene oxidation methods. The lignin content of the seed coat was 49.4%, and was the highest among various organs of the plant, while the stem had 15.9% lignin, within the range of usual lignin contents of angiosperm trees. Lignin aromatic components of all organs were composed of guaiacyl and syringyl units. Nitrobenzene oxidation indicated that the ratios of syringyl to guaiacyl lignins in the fruit coat and stem were higher than those in other organs. This study provides basic data for the total utilization of J. curcas wood.