Fractionation of Organosolv Lignin Using Acetone:Water and Properties of the Obtained Fractions Academic Article

abstract

• © 2016 American Chemical Society. Lignin fractions with different molecular weight were prepared using a simple and almost green method from switchgrass and pine organosolv lignin. Different proportions of acetone in water, ranging from 30 to 60%, were used for lignin fractionation. A higher concentration of acetone dissolved higher molecular weight fractions of the lignin. Fractionated organosolv lignin showed different molecular weight and functional groups. Higher molecular weight fractions exhibited more aliphatic and less phenolic OH than lower molecular weight fractions. Lower molecular weight fractions lead to more homogeneous structure compared to samples with a higher molecular weight. All fractions showed strong antioxidant activity.

authors

• Yuan, Joshua

altmetric score

• 0.5

author list (cited authors)

• Sadeghifar, H., Wells, T., Le, R. K., Sadeghifar, F., Yuan, J. S., & Ragauskas, A. J.

citation count

• 81

complete list of authors

• Sadeghifar, Hasan||Wells, Tyrone||Le, Rosemary Khuu||Sadeghifar, Fatemeh||Yuan, Joshua S||Jonas Ragauskas, Arthur

publication date

• November 2016

publisher

• American Chemical Society (ACS)  Publisher

published in

• ACS SUSTAINABLE CHEMISTRY & ENGINEERING  Journal

keywords

• Acetone:water Mixture
• Antioxidant Activity
• Lignin Fractionation
• Molecular Weight
• Organosolv Lignin

Digital Object Identifier (DOI)

• 10.1021/acssuschemeng.6b01955

start page

• 580

end page

• 587

volume

• 5

issue

• 1