Saccharide Alterations in Spruce Wood Due to Thermal and Accelerated Aging Processes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F25%3A103233" target="_blank" >RIV/60460709:41320/25:103233 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/17/9/1265" target="_blank" >https://www.mdpi.com/2073-4360/17/9/1265</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym17091265" target="_blank" >10.3390/polym17091265</a>

Result language

angličtina

Original language name

Saccharide Alterations in Spruce Wood Due to Thermal and Accelerated Aging Processes

Original language description

This work is devoted to the changes in polysaccharides in thermally treated wood after its accelerated aging with the aim of its optimal utilization after its original use has ended. Spruce wood samples were treated by the Thermowood process at temperatures of 160 degrees C, 180 degrees C, and 210 degrees C and subjected to accelerated aging in wet mode. The influence of treatment temperature and accelerated aging was monitored by wet chemistry, high-performance liquid chromatography (HPLC), X-ray diffraction (XRD), size exclusion chromatography (SEC), and Fourier-transform infrared spectroscopy (FTIR). During thermal treatment, hemicelluloses are mainly degraded. At the temperature of 210 degrees C, aromatic compounds formed as degradation products of lignin and hemicelluloses bind to cellulose fibers and increase cellulose yield. Preferential decomposition of the amorphous portion of cellulose leads to an increase in its crystallinity, while higher temperatures cause degradation of the crystal lattice. The degree of polymerization in both cellulose and hemicelluloses decreases due to the cleavage of glycosidic bonds. Accelerated aging does not significantly affect the changes in polysaccharides. The results obtained can be used in the processing of cellulose and hemicelluloses from thermally modified wood at the end of its life cycle in various industrial fields.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20502 - Paper and wood

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

POLYMERS

ISSN

2073-4360

e-ISSN

2073-4360

Volume of the periodical

17

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

1-16

UT code for WoS article

001486121500001

EID of the result in the Scopus database

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