Stemflow Fluorescence Predicts Lignin Composition and Phenolic Monomer Yield for Trees.

ABSTRACT: Lignin is a promising renewable feedstock to produce chemicals, fuels, and materials, yet a major challenge for lignocellulosic biorefineries is the significant variation in lignin content and structure. Traditional lignin characterization approaches require time-intensive, wet laboratory procedures, highlighting the need for rapid and reliable characterization methods to quantify lignin content and deconstruction products. This study presents a noninvasive, preharvest approach to determine lignin content, total phenolic monomer yield, and syringyl/guaiacyl (S/G) unit ratios in tree biomass from reductive catalytic fractionation (RCF) utilizing the optical properties of stemflow dissolved organic matter (DOM) as a proxy. A significant relationship between fluorescent signatures in stemflow

SUBMITTER: O'Halloran RC 

PROVIDER: S-EPMC12188632 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature