Laboratory of Biomass and Green Technologies, University of Liège, Passage des Déportés, 2, Gembloux 5030, Belgium.
Laboratory of Biomass and Green Technologies, University of Liège, Passage des Déportés, 2, Gembloux 5030, Belgium.
Carbohydr Polym. 2021 Feb 15;254:117412. doi: 10.1016/j.carbpol.2020.117412. Epub 2020 Nov 22.
Lignocellulosic fibres modification focused so far essentially on the resulting material properties to create functional fibres instead of determining the reaction influencing parameters. Using a data-mining algorithm, surface chemical composition of the fibres after modifications was compared to multiple signals. A 24 h reaction at either 25 °C or 60 °C, pH5 was conducted in presence of trans-ferulic acid, laccase, and lignocellulosic fibres (flax, hemp, or cellulose) having different chemical surface composition. Dimers and trimers were detected in variable concentrations in the reaction filtrate and extractive. At 25 °C, crystalline cellulose, amorphous cellulose, xylans, mannans, and lignins were well correlated to specific reaction products while at 60 °C, only lignins and xylan were found correlated to reaction products. Fibres surface composition affected the extractive profile. Lignocellulosic surface composition influence on the product formed was unveiled using a data mining approach. This study presents a way to unveil non-evident chemical interface interaction in reactions.
木质纤维的改性主要集中在研究所得材料的性能上，以创造功能性纤维，而不是确定影响反应的参数。使用数据挖掘算法，将改性后纤维的表面化学成分与多种信号进行了比较。在 25°C 或 60°C、pH5 的条件下，木质纤维（亚麻、大麻或纤维素）与反式阿魏酸、漆酶一起反应 24 小时，木质纤维的表面化学成分不同。在反应滤液和提取物中检测到了不同浓度的二聚体和三聚体。在 25°C 时，结晶纤维素、无定形纤维素、木聚糖、甘露聚糖和木质素与特定反应产物很好地相关，而在 60°C 时，只有木质素和木聚糖与反应产物相关。纤维表面成分影响提取物的分布。使用数据挖掘方法揭示了木质纤维素表面成分对产物形成的影响。本研究提供了一种揭示反应中不明显化学界面相互作用的方法。
