荻树皮有机溶剂分级法：亲脂性成分的命运和有价值酚类副产物的形成。

Miscanthus x giganteus bark organosolv fractionation: fate of lipophilic components and formation of valuable phenolic byproducts.

机构信息

Department of Chemistry, University of Aveiro, Aveiro, Portugal.

出版信息

J Agric Food Chem. 2010 Jul 28;58(14):8279-85. doi: 10.1021/jf101174x.

PMID:20593898

Abstract

The behavior of Miscanthus x giganteus bark lipophilic extractives during three acid organosolv pulping processes (Acetosolv, formic acid fractionation, and Milox) was investigated. It was demonstrated that nearly 90% of the lipophilic extractives were removed from pulps by either dissolution in the organosolv liquors (fatty acids and alcohols) or extensive degradation (sterols). The organosolv liquors were found to be rich in vanillin, syringaldehyde, and ferulic, vanillic, and p-coumaric acids. The Acetosolv fractionation process was found to be the most efficient in the removal of lipophilic components from pulps, and it was also the process that generated higher amounts of valuable monomeric phenolic compounds that could be exploited within the biorefinery context.

摘要

研究了荻树皮脂溶性抽提物在 3 种酸有机溶媒法制浆过程（乙酰基溶媒法制浆、甲酸分级法和 Milox 法）中的行为。结果表明，脂溶性抽提物中近 90%通过溶解在有机溶媒（脂肪酸和醇）或广泛降解（甾醇）而从纸浆中去除。有机溶媒富含香草醛、丁香醛和阿魏酸、香草酸和对香豆酸。乙酰基溶媒法制浆是从纸浆中去除脂溶性成分最有效的方法，也是生成更多可在生物精炼背景下利用的有价值的单体酚类化合物的方法。