Bio-oil Fractionation According to Polarity and Molecular Size: Characterization and Application as Antioxidants.

ABSTRACT: Bio-oil obtained from biomass pyrolysis has great potential for several applications after being upgraded and refined. This study established a method for separating bio-oil into different fractions based on polarity and molecular size to extract phenolic and polyphenolic compounds with antioxidant properties. The fractions were analyzed using various spectroscopic and chromatographic techniques, such as GC/MS, FTIR, UV-vis, SEC, DOSY-NMR, ¹³C-NMR, and ³¹P-NMR. The antioxidant properties of these fractions were tested by examining their ability to improve the oxidative stability of biodiesel. The results strongly connected the bio-oil's chemical functionalities and antioxidant power. During solvent fractionation, dichloromethane could extract phenolic structures, whic

SUBMITTER: Fonts I 

PROVIDER: S-EPMC11460040 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature