Rapid and accurate determination of the lignin content of lignocellulosic biomass by solid-state NMR

Fu, Li; McCallum, Scott A.; Miao, Jianjun; Hart, C Jac; Tudryn, Gregory J.; Zhang, Fuming; Linhardt, Robert J.

doi:10.1016/j.fuel.2014.10.039

Cited by 81 publications

(40 citation statements)

References 35 publications

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“…The last peak at 105.1 ppm corresponds to C 1 of cellulose (David et al, 2009). The presence of lignin in the feedstock can also be observed from the solid state NMR (Fu et al, 2015). The presence of hemicellulose is also indicated by the low intensity peaks at 21 and 102 ppm.…”

Section: Resultsmentioning

confidence: 87%

Value addition to rice straw through pyrolysis in hydrogen and nitrogen environments

Balagurumurthy

Srivastava

Vinit

et al. 2015

Bioresource Technology

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Section: Resultsmentioning

confidence: 87%

Value addition to rice straw through pyrolysis in hydrogen and nitrogen environments

Balagurumurthy

Srivastava

Vinit

et al. 2015

Bioresource Technology

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“…SSNMR has been used to quantify the amount of lignin in secondary cell walls [50–52], however lignin interactions with polysaccharides and proteins on the molecular level have not been studied (Fig. 3).…”

Section: Perspectives: Underexplored Areasmentioning

confidence: 99%

Multidimensional solid-state NMR spectroscopy of plant cell walls

Wang

Phyo

Hong

2016

Solid State Nuclear Magnetic Resonance

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Plant biomass has become an important source of bio-renewable energy in modern society. The molecular structure of plant cell walls is difficult to characterize by most atomic-resolution techniques due to the insoluble and disordered nature of the cell wall. Solid-state NMR (SSNMR) spectroscopy is uniquely suited for studying native hydrated plant cell walls at the molecular level with chemical resolution. Significant progress has been made in the last five years to elucidate the molecular structures and interactions of cellulose and matrix polysaccharides in plant cell walls. These studies have focused on primary cell walls of growing plants in both the dicotyledonous and grass families, as represented by the model plants Arabidopsis thaliana, Brachypodium distachyon, and Zea mays. To date, these SSNMR results have shown that 1) cellulose, hemicellulose, and pectins form a single network in the primary cell wall; 2) in dicot cell walls, the protein expansin targets the hemicellulose-enriched region of the cellulose microfibril for its wall-loosening function; and 3) primary wall cellulose has polymorphic structures that are distinct from the microbial cellulose structures. This article summarizes these key findings, and points out future directions of investigation to advance our fundamental understanding of plant cell wall structure and function.

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“…FTIR based on diffuse reflectance infrared fourier transform spectroscopy (DRIFT) is an improvement that offers a nondestructive technique to estimate lignin content of biomass, and has been validated compared to previous methods (32). NMR methods that allow for solid-state analysis have also been developed, and the rapid and accurate determination of the lignin content of lignocellulosic biomass by solid-state NMR has been documented (33). The methods of oxidant consumption are used exclusively in the analysis of residual lignin in unbleached pulps.…”

Section: Formation and Elimination Of Multiple-bond Functionalitiesmentioning

confidence: 99%

Lignin

Gargulak¹,

Lebo²,

McNally³

2015

Kirk-Othmer Encyclopedia of Chemical Technology

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The word lignin is derived from the Latin word lignum meaning wood. It is one of the main components of all vascular plants and the second most abundant polymer in nature. This article describes the current understanding of the structure of this complex natural polymer. The number and types of different chemical bonds present in lignin are discussed, as are the ways in which different lignins are identified and their distributions determined in plant tissues. Means for isolating lignin from wood are described, and the chemical and physical properties of the resulting lignins are reviewed. The various chemical and instrumental methods for characterizing isolated lignins are also discussed. The article concludes with a review of commercial lignin products including a discussion of producers, production methods, modification reactions, and the many industries in which lignins are used.

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Rapid and accurate determination of the lignin content of lignocellulosic biomass by solid-state NMR

Cited by 81 publications

References 35 publications

Value addition to rice straw through pyrolysis in hydrogen and nitrogen environments

Value addition to rice straw through pyrolysis in hydrogen and nitrogen environments

Multidimensional solid-state NMR spectroscopy of plant cell walls

Lignin

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