Determination of Lignin Content in Plant Materials Using Solid-State 13C NMR Spectroscopy
S. G. Kostryukov, P. S. Petrov, V. A. Kalyazin, Yu. Yu. Masterova, V. S. Tezikova, N. A. Khluchina, L. Ya. Labzina, D. Kh. Alalvan
Abstract
The article shows the possibilities of solid-state (СP MAS) 13С NMR spectroscopy for determination of lignin content in a wide range of lignocellulosic materials: wood of various tree species and plant waste. The analysis is based on the use of the dependences of the integral intensity of 13C NMR signals due to aromatic or methoxy carbon atoms of lignin on its percentage in mixtures with cellulose. The lignin content obtained by 13С NMR spectroscopy is in good agreement with the published data and the results obtained using acid hydrolysis of the corresponding samples of lignocellulosic biomaterials.
Topics & Concepts
LigninCelluloseNuclear magnetic resonance spectroscopyCarbon-13 NMRLignocellulosic biomassMaterials scienceSpectroscopyHydrolysisCarbon fibersChemistryAcid hydrolysisAnalytical Chemistry (journal)Organic chemistryComposite materialComposite numberPhysicsQuantum mechanicsLignin and Wood ChemistryBiofuel production and bioconversionFermentation and Sensory Analysis