加速溶剂萃取法从麻疯树（Candlenut）果壳中提取木质素。
Accelerated solvent extraction of lignin from Aleurites moluccana (Candlenut) nutshells.
机构信息
Center for Green Chemistry and Green Engineering, Yale University, 225 Prospect Street, New Haven, Connecticut 06511, USA.
出版信息
J Agric Food Chem. 2010 Sep 22;58(18):10045-8. doi: 10.1021/jf1019856.
Lignin from candlenut shells was isolated using an ethanol-water accelerated solvent extraction method. Yields (based on Klason lignin) increased from about 14 to 33% as temperature increased from 100 to 195 °C and were also influenced by the amount of aqueous acid used to precipitate lignin from the extraction liquor. These yields were higher than could be obtained using a conventional dioxane-water acidolysis method. The resulting lignin was characterized by IR, 31P NMR, and 1H-13C HMQC NMR spectroscopic techniques. The lignin contained predominantly guaiacyl units, and both the total hydroxyl group content and phenolic hydroxyl group content were high.
采用乙醇-水加速溶剂萃取法从麻疯树果壳中分离得到木质素。随着温度从 100°C 升高到 195°C，基于 Klason 木质素的产率（yield）从约 14%增加到 33%，并且还受到用于从萃取液中沉淀木质素的水相酸用量的影响。这些产率高于使用传统的二恶烷-水酸解方法获得的产率。用红外光谱（IR）、31P NMR 和 1H-13C HMQC NMR 光谱技术对得到的木质素进行了表征。木质素主要含有愈创木基单元，总羟基含量和酚羟基含量都很高。
Zotero 插件