Application of FTIR spectroscopy to the characterization of archeological wood

Traoré, Mohamed; Kaal, Joeri; Cortizas, Antonio Martínez

doi:10.1016/j.saa.2015.07.108

Cited by 180 publications

(102 citation statements)

References 40 publications

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“…A strong case can be made that substrate characterization in biorefinery has emerged as a research field in its own right. Characterization of biorefinery resources has been examined by several state-of-the-art analytical techniques including Fourier transform infrared spectroscopy (FTIR) 2 , fluorescence spectroscopy 3 , HPLC 4 , gas chromatography-mass spectrometry (GC-MS) 5 , NMR spectroscopy 6 , gel permeation chromatography (GPC) 7 , scanning electron microscopy 8 , tunneling electron microscopy 9 , atomic force microscopy 10 , Raman spectrometry 11 , time-of-flight secondary ion mass spectrometry (ToF-SIMS) 12 , and small-angle neutron scattering 13 along with a host of wet-chemistry and biological assays.…”

Section: Introductionmentioning

confidence: 99%

Determination of hydroxyl groups in biorefinery resources via quantitative 31P NMR spectroscopy

et al. 2019

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The analysis of chemical structural characteristics of biorefinery product streams (such as lignin and tannin) has advanced substantially over the past decade, with traditional wet-chemical techniques being replaced or supplemented by NMR methodologies. Quantitative 31 P NMR spectroscopy is a promising technique for the analysis of hydroxyl groups because of its unique characterization capability and broad potential applicability across the biorefinery research community. This protocol describes procedures for (i) the preparation/solubilization of lignin and tannin, (ii) the phosphitylation of their hydroxyl groups, (iii) NMR acquisition details, and (iv) the ensuing data analyses and means to precisely calculate the content of the different types of hydroxyl groups. Compared with traditional wet-chemical techniques, the technique of quantitative 31 P NMR spectroscopy offers unique advantages in measuring hydroxyl groups in a single spectrum with high signal resolution. The method provides complete quantitative information about the hydroxyl groups with small amounts of sample (~30 mg) within a relatively short experimental time (~30-120 min).

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Section: Introductionmentioning

confidence: 99%

Determination of hydroxyl groups in biorefinery resources via quantitative 31P NMR spectroscopy

et al. 2019

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“…In addition, mechanistic studies describe the type of reaction intermediates and competing pathways involved in the product formation (Asatryan, Bennadji, Bozzelli, Ruckenstein, & Khachatryan, 2017;Bahrle, Custodis, Jeschke, van Bokhoven, & Vogel, 2014;Custodis et al, 2014;Furutani, Dohara, Kudo, Hayashi, & Norinaga, 2018;Khachatryan et al, 2016;Kibet, Khachatryan, & Dellinger, 2012;Kim, Bai, Cady, Gable, & Brown, 2015;Koirala, Villano, Carstensen, & Dean, 2013;Qi, Zhang, Kudo, Norinaga, & Hayashi, 2017;Seshadri & Westmoreland, 2012;Shen, Jarboe, et al, 2015;Wornat, Ledesma, & Marsh, 2001;Xu, Khachatryan, Baev, & Asatryan, 2016). Advances in analytical techniques have made it possible to even detect intermediate radicals and important product species (Bahng et al, 2009;Kanaujia, Sharma, Agrawal, & Garg, 2013;Michailof, Kalogiannis, Sfetsas, Patiaka, & Lappas, 2016;Negahdar et al, 2016;Pouwels, Eijkel, & Boon, 1989;Sarrut et al, 2015;Traore, Kaal, & Martinez Cortizas, 2016). Results obtained with such techniques play a crucial role in the evolution of detailed biomass fast pyrolysis reaction mechanisms.…”

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confidence: 99%

Measuring biomass fast pyrolysis kinetics: State of the art

SriBala

Carstensen

Marin

2018

WIREs Energy & Environment

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Fast pyrolysis of lignocellulosic biomass is considered to be a promising thermochemical route for the production of drop‐in fuels and valuable chemicals. During the past decades, a comprehensive understanding of feedstock structure, fast pyrolysis kinetics, product distribution, and transport effects that govern the process has allowed to design better pyrolysis reactors and/or catalysts. A variety of lignocellulosic biomass feedstocks, like corn stover, pinewood, poplar, and model compounds like glucose, xylan, monolignols have been utilized to study the thermal decomposition at or close to fast pyrolysis conditions. Significant progress has been made in understanding the kinetics by developing unique setups such as drop‐tube, PHASR, and micropyrolyzer reactors in combination with the use of advanced analytical techniques such as comprehensive gas and liquid chromatography (GC, LC) with time‐of‐flight mass spectrometer (TOF‐MS). This has led to initial intrinsic kinetic models for biomass and its main components, namely cellulose, hemicellulose, and lignin, validated using experimental setups where the effects of heat and mass transfer on the performance of the process, expressed using Biot and pyrolysis numbers, are adequately negligible. Yet, not all aspects of fast pyrolysis kinetics of biomass components are equally well understood. The use of time‐resolved or multiplexed experimental techniques can further improve our understanding of reaction intermediates and their corresponding kinetic mechanisms. The novel experimental data combined with first principles based multiscale models can reshape biomass pyrolysis models and transform biomass fast pyrolysis to a more selective and energy efficient process. This article is categorized under: Energy and Climate > Climate and Environment Energy Research & Innovation > Science and Materials Bioenergy > Science and Materials

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“…CRM imaging and TEM measurements provided more complete information on the removal, migration and re-localization of lignin resulting from dilute acid pretreatment. Traoré et al (93) suggested that FTIR is a good tool for the wood lignin, cellulose, hemicelluloses and carbohydrates; they also confirmed the relationship between carbohydrate and lignin content of soft wood and hard wood plant. Agarwal et al (94) concluded that, Raman and NMR is a good tool for the estimation of syringyl-to-guaiacyl (S/G) ratio in woods.…”

Section: Instruments and Methods Used In Biomass Assessmentmentioning

confidence: 90%

Biomass breakdown A review on pretreatment instrumentations and methods

2018

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Enzymatic breakdown of lignocellulosic biomass for liquid fuel production is a viable alternative to fossil fuels, due to its renewable and environmental friendly nature. Naturally, plants protect their cell wall polysaccharides by giving limited access to the cell wall degrading enzymes. Lignocellulose breakdown requires proper pretreatments that disrupt the close inter-component association between the constituents of the plant cell wall. For efficient biomass conversion, the choice of the correct pretreatment is important for removing the barriers to enhance access to microbial enzymes. Among the pretreatment methods available, biological pretreatment is a promising approach for biomass degradation as there are no inhibitors generated. Another significant area that needs attention is the development of methods that can qualitatively and quantitatively determine the degradation of biomass and product generation. More technological advancement would be required in the field of pretreatment technology and fermentation processes to make the whole process economical. Here, we review the recent developments in the field of lignocellulosics, role of various pretreatments, instruments & methods and role of microbial enzymes in biomass degradations.

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Application of FTIR spectroscopy to the characterization of archeological wood

Cited by 180 publications

References 40 publications

Determination of hydroxyl groups in biorefinery resources via quantitative 31P NMR spectroscopy

Determination of hydroxyl groups in biorefinery resources via quantitative 31P NMR spectroscopy

Measuring biomass fast pyrolysis kinetics: State of the art

Biomass breakdown A review on pretreatment instrumentations and methods

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