Determination of the Composition of Lignocellulosic Biomasses from Combined Analyses of Thermal, Spectroscopic, and Wet Chemical Methods

Abstract

In this article, we characterize the composition of different fibers from agro-industrial waste by means of wet characterization methods, such as Van Soest Wine and TAPI standards. The compositions of these fibers are also determined by thermogravimetric analysis (TGA) as an alternate form of analysis and to assess the reliability of the wet methods. The original fibers are characterized, and samples are taken at each intermediate step of the wet method. These samples are analyzed using TGA, scanning electron microscopy, and infrared spectroscopy. We discuss the results of these techniques and conclude that each of the steps of the wet characterization methods is not efficiently removing the corresponding phase. We show that the wet methods affect and modify the biomasses during the analysis, while the thermogravimetric analyses with deconvolution of signs provide an accurate determination of the different components, in shorter time periods.

Valorization of coffee silverskin by cascade extraction of valuable biomolecules: preparation of eco‐friendly composites as the ultimate step

“…The evaluation of the lignin content can then be determined from peak deconvolution of the derivative curves obtained from TGA 56 . Software Magic Plot Pro 3.0.1 was used to carry out peak deconvolution analyses from the DTG curves for the three residues and the results are summarized in Table 2.…”

“…Lignin content (wt%) a curves obtained from TGA. 56 Software Magic Plot Pro 3.0.1 was used to carry out peak deconvolution analyses from the DTG curves for the three residues and the results are summarized in Table 2. As observed in Fig.…”

Preparation and characterization of emulsion gels stabilized by adequately preprocessed insoluble soybean fiber from okara

“…Van Soest's method was adapted to determine the cellulose, hemicellulose, and lignin content. 19 2.3.2. Fourier transform infrared (FTIR) spectroscopy.…”

Challenges and Future Perspectives of Promising Biotechnologies for Lignocellulosic Biorefinery

“…Hence, rational and efficient utilization of lignocellulose has always been a hot research topic. Lignocellulose derived from wastes or residues of agricultural and forestry industry activities is mainly composed of cellulose (35-50%), hemicellulose (23-32%) and lignin (15-30%) [7,8]. These cellulosic polysaccharides and Molecules 2021, 26, 5411 2 of 15 non-cellulosic polysaccharides constitute 90% of plant dry weight (Figure 1).…”

“…Molecules 2021, 26, x FOR PEER REVIEW 2 of 15 hemicellulose (23-32%) and lignin (15-30%) [7,8]. These cellulosic polysaccharides and non-cellulosic polysaccharides constitute 90% of plant dry weight (Figure 1).…”