title: UV-Vis as quantification tool for solubilized lignin following a single-shot steam process.
abstract: In this short communication, UV/Vis was used as an analytical tool for the quantification of lignin concentrations in aqueous mediums. A significant correlation was determined between absorbance and concentration of lignin in solution. For this study, lignin was produced from different types of biomasses (willow, aspen, softwood, canary grass and hemp) using steam processes. Quantification was performed at 212, 225, 237, 270, 280 and 287 nm. UV-Vis quantification of lignin was found suitable for different types of biomass making this a timesaving analytical system that could lead to uses as Process Analytical Tool (PAT) in biorefineries utilizing steam processes or comparable approaches.
authors.affiliation: Industrial Research Chair on Cellulosic Ethanol, Departement of Chemical and Biotechnological Engineering, Université de Sherbrooke, Sherbrooke, Québec, Canada.
authors.forename: Roland A
authors.initials: RA
authors.lastname: Lee
authors.forename: Charles
authors.initials: C
authors.lastname: Bédard
authors.forename: Véronique
authors.initials: V
authors.lastname: Berberi
authors.forename: Romain
authors.initials: R
authors.lastname: Beauchet
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Lavoie
mesh_terms: D018533:Biomass; D002138:Calibration; D008031:Lignin / Q000032:analysis*; D011134:Polysaccharides / Q000032:analysis; D012995:Solubility; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D013227:Steam
chemical_list: D011134:Polysaccharides; D013227:Steam; C007916:hemicellulose; D008031:Lignin
keywords: Biorefineries; Hemicellulose; Lignin; Steam explosion; UV–Vis