Fractionation of technical lignin with ionic liquids as a method for improving purity and antioxidant activity

详细信息    查看全文

• 作者：Maris Lauberts^a ; Olena Sevastyanova^b ; ^c ; ^Olena@kth.se ; Jevgenija Ponomarenko^a ; Tatjana Dizhbite^a ; Galina Dobele^a ; Alexandr Volperts^a ; Liga Lauberte^a ; Galina Telysheva^a
• 关键词：Ionic liquids ; Lignin ; Analytical pyrolysis (Py-GC/MS/FID) ; Antioxidant activity ; Electron paramagnetic resonance (EPR) ; Gel-permeation chromatography (GPC) ; Purification
• 刊名：Industrial Crops and Products
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：95
• 期：Complete
• 页码：512-520
• 全文大小：918 K
• 卷排序：95

文摘

IL’s are suitable green solvents to obtain lignin fractions with enhanced antioxidant activity. Fractionation with IL’s resulted in significantly higher yield than that with organic solvents. Antioxidant activity of the fractionated lignin is higher than that in original soda lignin.