Determination of Lignin, Cellulose, and Hemicellulose in Plant Materials by FTIR Spectroscopy

Kostryukov, S. G.; Matyakubov, Hasan Bahramovich; Masterova, Yu. Yu.; Kozlov, A. S.; Pryanichnikova, M. K.; Pynenkov, A. A.; Khluchina, N. A.

doi:10.1134/s1061934823040093

Cited by 26 publications

(9 citation statements)

References 29 publications

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“…Then, in the fingerprint range of wavelengths from 800 to 1800 cm −1 , we marked the peaks with the numbers 1–10. In the spectra of both studied seeds, these ten characteristic bands indicate the presence of cellulose, hemicellulose, starch, and also lignin [ 41 , 42 ]. Table 1 summarizes the absorption ranges of the corresponding peaks as well as their assignment and possible sources.…”

Section: Resultsmentioning

confidence: 99%

Growth Stimulation of Durum Wheat and Common Buckwheat by Non-Thermal Atmospheric Pressure Plasma

Tunklová,

Šerá,

Šrámková

et al. 2023

Plants

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The grains of durum wheat (Triticum durum Desf.) and achenes of common buckwheat (Fagopyrum esculentum Moench) were tested after treatment with two sources of non-thermal atmospheric pressure plasma (DCSBD, MSDBD) with different treatment times (0, 3, 5, 10, 20, 30, and 40 s). The effect of these treatments was monitored with regard to the seed surface diagnostics (water contact angle—WCA, chemical changes by Fourier transform infrared spectroscopy—FTIR); twenty parameters associated with germination and initial seed growth were monitored. A study of the wettability confirmed a decrease in WCA values indicating an increase in surface energy and hydrophilicity depending on the type of seed, plasma source, and treatment time. Surface analysis by attenuated total reflectance FTIR (ATR-FTIR) showed no obvious changes in the chemical bonds on the surface of the plasma-treated seeds, which confirms the non-destructive effect of the plasma on the chemical composition of the seed shell. A multivariate analysis of the data showed many positive trends (not statistically significant) in germination and initial growth parameters. The repeated results for germination rate and root/shoot dry matter ratio indicate the tendency of plants to invest in underground organs. Durum wheat required longer treatment times with non-thermal plasma (10 s, 20 s) for germination and early growth, whereas buckwheat required shorter times (5 s, 10 s). The responses of durum wheat grains to the two non-thermal plasma sources used were equal. In contrast, the responses of buckwheat achenes were more favorable to MSDBD treatment than to DCSBD.

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Section: Resultsmentioning

confidence: 99%

Growth Stimulation of Durum Wheat and Common Buckwheat by Non-Thermal Atmospheric Pressure Plasma

Tunklová,

Šerá,

Šrámková

et al. 2023

Plants

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“…The peaks observed at 1247 cm −1 (C-O stretching vibration of Ph-O-C) and 1511 cm −1 /1598 cm −1 (C=C stretching of aromatic skeleton) correspond to characteristic signals of lignin. Peaks observed at 1112 cm −1 (glucose ring stretching vibration) and 1164 cm −1 (C-O-C stretching vibration) correspond to characteristic signals of cellulose [43][44][45]. Following the heat treatment, there is an increase in relative intensity between cellulose and hemicelluloses, which may be attributed to the thermal degradation of hemicelluloses.…”

Section: Fourier Transform Infrared (Ftir) Spectramentioning

confidence: 99%

The Optimization of the Steam-Heat-Treated Process of Rattan (Calamus simplicifolius) Based on the Response Surface Analysis and Its Chemical Changes

Xu,

Wang,

et al. 2024

Forests

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The objective of this study is to investigate the impacts of steam heat treatment parameters (e.g., temperature, time, and pressure) on the impact toughness of rattan (Calamus simplicifolius). The Box–Behnken design response surface analysis was employed to optimize the steam heat treatment parameters. Impact toughness was selected as the evaluation index, with single-factor tests conducted as a baseline for comparison. Changes in chemical composition, cellulose crystallinity, and pyrolysis properties were analyzed using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectra, Thermogravimetry–Fourier transform infrared (TG-FTIR) spectra, and wet-chemistry methods for both untreated control samples and the heat-treated samples. The results show that a 1 h steam heat treatment at 160 °C under 0.1 MPa pressure has the optimal process parameters for the rattan. The achieved impact toughness value closely matches the predicted value at 71.29 kJ/m2. After the steam heat treatment, hemicellulose and cellulose contents decrease, whereas relative lignin content increases significantly, leading to improved toughness characteristics in Calamus simplicifolius samples. The TG results indicate that maximum weight loss occurs at temperatures of 352 °C, 354 °C, and 361 °C, respectively, for three different samples. This suggests that the thermal stability is enhanced as a result of the heat treatment. These findings will help optimize the heat treatments of the rattan material.

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“…In the fingerprint region of the spectra (Figure 3c), a broad band of 1648-1641 cm −1 in both samples was observed, which is likely to be due to -OH bending in weakly adsorbed water. However, for the P1 sample, this band could also be due to C=C stretching in lignin, which makes paper susceptible to degradation [55][56][57]. Other notable bands that appeared in both spectra were those at 1424 cm −1 and 1311-1319 cm −1 , ascribed to -CH 2 and -CH bending in cellulose and the band of 1162-1161 cm −1 due to C-O-C stretching vibration in cellulose and hemicellulose, a polysaccharide that binds cellulose fibers together [57].…”

Section: P1 Paper P1-hmimts P1-hmimclmentioning

confidence: 99%

Ionic Liquids as Potential Cleaning and Restoration Agents for Cellulosic Artefacts

Croitoru,

Roata

2024

Processes

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This study explores the efficacy of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide and 1-hexyl-3-methylimidazolium chloride as cleaning agents for aged cellulosic artifacts. A 10% v/v acetone solution of these ionic liquids (ILs) effectively removes the brownish-yellow color of aged paper in a 10 min immersion treatment. Colorimetric analysis shows a remarkable increase in lightness (L*) by up to 40% and a decrease in red/brownish tones (b*) after IL treatment. The cleaning process also deacidifies the paper, shifting the pH to neutral-slightly basic levels and enhancing its long-term stability. Optimal pH outcomes are achieved, with ionic liquid consumption values of 0.4–0.6 g/g of paper. The FTIR analysis revealed structural changes in cellulose induced by the washing step, which is mainly due to the reorganization effect imparted by the ionic liquids. Furthermore, ILs mobilized degraded compounds and acidic species, aiding in their extraction during the restoration process. Mechanical testing indicated an enhancement in the overall tensile strength and strain at break values for IL-treated papers by up to 33%. This study demonstrates the multiple benefits of alkylimidazolium ionic liquids for preserving and restoring cultural heritage artifacts made of cellulosic materials.

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Determination of Lignin, Cellulose, and Hemicellulose in Plant Materials by FTIR Spectroscopy

Cited by 26 publications

References 29 publications

Growth Stimulation of Durum Wheat and Common Buckwheat by Non-Thermal Atmospheric Pressure Plasma

Growth Stimulation of Durum Wheat and Common Buckwheat by Non-Thermal Atmospheric Pressure Plasma

The Optimization of the Steam-Heat-Treated Process of Rattan (Calamus simplicifolius) Based on the Response Surface Analysis and Its Chemical Changes

Ionic Liquids as Potential Cleaning and Restoration Agents for Cellulosic Artefacts

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