Next Article in Journal
The Preliminary Assessment of New Biomaterials Necessitates a Comparison of Direct and Indirect Cytotoxicity Methodological Approaches
Previous Article in Journal
Study on Low-Temperature and Fatigue Performance of High RAP Content Hot Recycled Asphalt Mixture Based on the Degree of Blending (DOB)
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Polymers
Volume 14
Issue 21
10.3390/polym14214521
polymers-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Composition and Structure of Aspen (Pópulus trémula) Hemicelluloses Obtained by Oxidative Delignification

by
Valentina S. Borovkova
1,2,
Yuriy N. Malyar
1,2,*,
Irina G. Sudakova
1,
Anna I. Chudina
1,
Dmitriy V. Zimonin
1,2,
Andrey M. Skripnikov
1,2,
Angelina V. Miroshnikova
1,2,
Vladislav A. Ionin
1,2,
Alexander S. Kazachenko
1,2,3,
Valentin V. Sychev
1,2,
Ilya S. Ponomarev
1,2 and
Noureddine Issaoui
4
1
Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch Russian Academy of Sciences, Akademgorodok 50/24, 660036 Krasnoyarsk, Russia
2
School of Non-Ferrous Metals and Material Science, Siberian Federal University, Pr. Svobodny 79, 660041 Krasnoyarsk, Russia
3
Department of Biological Chemistry with Courses in Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University of the Ministry of Healthcare of the Russian Federation, St. Partizan Zheleznyak, Bld. 1, 660022 Krasnoyarsk, Russia
4
Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, University of Monastir, Monastir 5079, Tunisia
*
Author to whom correspondence should be addressed.
Polymers 2022, 14(21), 4521; https://doi.org/10.3390/polym14214521
Submission received: 30 September 2022 / Revised: 19 October 2022 / Accepted: 21 October 2022 / Published: 25 October 2022
Browse Figures
Versions Notes

Abstract

In this study, hemicelluloses of aspen wood (Pópulus trémula) were obtained by oxidative delignification in an acetic acid-water-hydrogen peroxide medium at temperatures of 70–100 °C and a process time of 1–4 h. The maximum polysaccharide yield of up to 9.68 wt% was reported. The composition and structure of the hemicelluloses were studied using a complex of physicochemical methods: gas and gel permeation chromatography, Fourier-transform infrared spectroscopy, 2D nuclear magnetic resonance spectroscopy, and thermogravimetric analysis. The xylose, mannose, galactose, and glucose monomer units were identified in the hemicelluloses by gas chromatography. The weight average molecular weight Mw of the products determined by gel permeation chromatography was found to range within 8932–33,142 g/mol. The reported Fourier-transform spectra of the hemicelluloses contain all the bands characteristic of heteropolysaccharides; a weak lignin absorption signal in the spectra at 1500–1510 cm−1 is attributed to a minor content of phenolic fragments in the structure of the obtained hemicelluloses. The use of thermogravimetric analysis established that the hemicelluloses isolated from aspen wood are resistant against heating to temperatures of up to 90–100 °C and, upon further heating up to 400 °C, start destructing at an increasing rate. The antioxidant activity of the hemicelluloses was examined using the compounds that mimic free radicals (1,1-diphenyl-2-picrylhydrazyl) and hydroxyl radicals (salicylic acid). It was found that the activity of all polysaccharides in neutralizing DPPH and hydroxyl radicals is lower than the absorption capacity of vitamin C at all the tested concentrations (0.5, 2, and 5 mg/mL) and attains 81.7 and 82.9%, respectively.
Keywords: hemicellulose; aspen wood; antioxidant activity; delignification; molecular weight characteristics; optimization of the process; HSQC hemicellulose; aspen wood; antioxidant activity; delignification; molecular weight characteristics; optimization of the process; HSQC
Graphical Abstract

Share and Cite

MDPI and ACS Style

Borovkova, V.S.; Malyar, Y.N.; Sudakova, I.G.; Chudina, A.I.; Zimonin, D.V.; Skripnikov, A.M.; Miroshnikova, A.V.; Ionin, V.A.; Kazachenko, A.S.; Sychev, V.V.; et al. Composition and Structure of Aspen (Pópulus trémula) Hemicelluloses Obtained by Oxidative Delignification. Polymers 2022, 14, 4521. https://doi.org/10.3390/polym14214521

AMA Style

Borovkova VS, Malyar YN, Sudakova IG, Chudina AI, Zimonin DV, Skripnikov AM, Miroshnikova AV, Ionin VA, Kazachenko AS, Sychev VV, et al. Composition and Structure of Aspen (Pópulus trémula) Hemicelluloses Obtained by Oxidative Delignification. Polymers. 2022; 14(21):4521. https://doi.org/10.3390/polym14214521

Chicago/Turabian Style

Borovkova, Valentina S., Yuriy N. Malyar, Irina G. Sudakova, Anna I. Chudina, Dmitriy V. Zimonin, Andrey M. Skripnikov, Angelina V. Miroshnikova, Vladislav A. Ionin, Alexander S. Kazachenko, Valentin V. Sychev, and et al. 2022. "Composition and Structure of Aspen (Pópulus trémula) Hemicelluloses Obtained by Oxidative Delignification" Polymers 14, no. 21: 4521. https://doi.org/10.3390/polym14214521

APA Style

Borovkova, V. S., Malyar, Y. N., Sudakova, I. G., Chudina, A. I., Zimonin, D. V., Skripnikov, A. M., Miroshnikova, A. V., Ionin, V. A., Kazachenko, A. S., Sychev, V. V., Ponomarev, I. S., & Issaoui, N. (2022). Composition and Structure of Aspen (Pópulus trémula) Hemicelluloses Obtained by Oxidative Delignification. Polymers, 14(21), 4521. https://doi.org/10.3390/polym14214521

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop