Wood Science and Technology最新文献

{"title":"Retained metal concentration and thermal degradation pathways in inorganic salt-treated oak","authors":"Federico Paolino,&nbsp;Jeannette Jacqueline Łucejko,&nbsp;Sonia Godzisz,&nbsp;Jakub Brózdowski,&nbsp;Izabela Ratajczak,&nbsp;Tomasz Krystofiak,&nbsp;Magdalena Zborowska","doi":"10.1007/s00226-026-01797-0","DOIUrl":"10.1007/s00226-026-01797-0","url":null,"abstract":"<div><p>This study examines how the amount of retained metal influences the thermal degradation behaviour of oak wood treated with inorganic salts. After controlled impregnation and removal of loosely bound fractions, metal uptake was quantified by atomic absorption spectroscopy and related to changes in degradation behaviour observed by evolved gas analysis–mass spectrometry and pyrolysis–gas chromatography/mass spectrometry. Clear differences were observed between the various salt treatments. Calcium-based systems showed the highest metal retention and were associated with increased thermal stability, whereas alkali metals promoted more pronounced fragmentation of degradation products. Transition metals exhibited intermediate behaviour, reflecting the combined influence of metal-specific interactions and treatment conditions. The pH of the treatment solutions decreased after contact with wood, indicating that chemical changes during impregnation contribute to the observed behaviour. In addition, thermo-hygrometric ageing led to a general increase in degradation temperatures for all samples, while differences between treatments remained evident. These results highlight the combined role of metal retention, cation chemistry, and environmental exposure in controlling the thermal behaviour of salt-treated oak.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01797-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valorization of Pinus brutia bark and resin into eco-friendly biopolymer hydrogels for wound healing applications","authors":"Meltem Taş Küçükaydın,&nbsp;Mehmet Emin Duru,&nbsp;Özgür Ceylan,&nbsp;Pınar Terzioğlu,&nbsp;Selçuk Küçükaydın,&nbsp;Aydın Demiray","doi":"10.1007/s00226-026-01790-7","DOIUrl":"10.1007/s00226-026-01790-7","url":null,"abstract":"<div><p>The sustainable conversion of forestry by-products into bioactive biopolymer materials is a promising strategy for biodegradable wound dressing systems. This study valorized <i>Pinus brutia</i> bark extract (PBBE) and resin extract (PBRE) by incorporating them into chitosan-, chitosan/gelatin-, poly(vinyl alcohol) (PVA)/chitosan-, and PVA/starch-based hydrogel films. The extracts were characterized by high-performance liquid chromatography with diode-array detection (HPLC-DAD) and gas chromatography–mass spectrometry (GC-MS), and the films were evaluated for physicochemical properties, release behavior, biological activities, cytotoxicity, and scratch wound closure. PBBE showed a taxifolin-rich phenolic profile, with taxifolin as the major compound (180.5 mg/g), strong 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (IC₅₀: 7.33 µg/mL), and tyrosinase inhibition comparable to kojic acid. PBRE was dominated by diterpenic acids (87.43%) and exhibited notable antifungal activity against <i>Candida albicans</i>, with a minimum inhibitory concentration (MIC) of 0.078 mg/mL. Among the hydrogel systems, chitosan-based films showed the highest swelling and degradation, with chitosan-PBBE reaching the highest swelling ratio (381.0%). Extract-loaded hydrogels also displayed pH-dependent release and improved functional performance depending on polymer composition and extract type. In the scratch assay, both extracts enhanced wound closure compared with untreated controls, with PBBE reaching 70.00% closure at 24 h and both extracts reaching complete closure at 72 h. The extracts showed no apparent cytotoxicity toward HEK-293T cells. Overall, these findings suggest that <i>P. brutia</i> bark and resin can serve as sustainable bioactive ingredients for biodegradable hydrogel films intended for wound dressing applications, although further validation using skin-relevant cell models and in vivo studies is required.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurements of Japanese cedar growth on rough surface using spectral imaging analysis","authors":"Andrzej Sioma,&nbsp;Keiko Nagashima,&nbsp;Bartosz Lenty,&nbsp;Arkadiusz Hebda,&nbsp;Yasutaka Nakata,&nbsp;Kiichi Harada","doi":"10.1007/s00226-026-01795-2","DOIUrl":"10.1007/s00226-026-01795-2","url":null,"abstract":"<div><p>Accurate measurement of tree-ring increments on rough wood surfaces in the field is essential for evaluating forest productivity and merchantability. Conventional imaging approaches are hindered by intensity non-uniformity across the cross-section, particularly between the darker heartwood in the central region and the lighter sapwood towards the periphery. This study presents a spectral imaging method designed to compensate for intensity non-uniformity across the wood cross-section. By equalizing intensity variations between heartwood and sapwood regions, the method enables reliable identification of annual growth rings on unprocessed, rough surfaces of Japanese cedar. The spectral imaging station and the procedure for acquiring spectral images are described. Spectral characteristics that enhance ring visibility are analysed, and an algorithm is proposed for selecting the optimal spectral range to maximise contrast in the intensity-balanced image. The method was applied to 20 rough-surfaced Japanese cedar samples imaged at a spatial resolution of 0.05 mm/pixel. Annual ring increments were successfully quantified on these samples. Although validation on a larger and more diverse set of samples is required to confirm robustness and versatility, the key contribution lies in the proposed spectral imaging technique, which effectively addresses intensity non-uniformity and enables reliable dendrometric measurements on challenging field samples.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01795-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retrieving complete plastid genomes from historical xylaria: a hybridization capture approach for Fraxinus phylogenetics and wood authentication","authors":"Yang Lu,&nbsp;Lichao Jiao,&nbsp;Juan Liu,&nbsp;Yafang Yin","doi":"10.1007/s00226-026-01792-5","DOIUrl":"10.1007/s00226-026-01792-5","url":null,"abstract":"<div><p>Wood specimens preserved in xylaria are valuable genetic resources, but their highly fragmented and degraded DNA poses major challenges for genomic studies. This research established a feasible xylarium genomics approach by applying hybridization capture combined with next-generation sequencing to archived <i>Fraxinus</i> specimens, successfully retrieving high-quality plastid genomes with 99.89–100% coverage. The complete plastid genomes (155,541–155,613 bp) contained 79–80 protein-coding genes, 27 tRNA genes, and 4 rRNA genes. Repeat analyses identified 155–171 simple sequence repeats and 42–49 long repeats. While amino acid frequencies and codon usage were conserved in <i>Fraxinus</i>, structural variations were observed at IR/SC boundaries among 17 species. Comparative genomics revealed that intergenic regions had 3.54 times higher nucleotide diversity (Pi) than gene regions, with the most variable regions including <i>rpl</i>22-<i>rps</i>19, <i>trn</i>H-GUG-<i>psb</i>A, <i>atp</i>A-<i>atp</i>F, <i>rps</i>2-<i>rpo</i>C2, and <i>trn</i>L-UAG-<i>ccs</i>A. Phylogenetic analyses based on plastid genomes produced consistent, well-supported topologies. This study demonstrates the feasibility of obtaining complete plastid genomes from wood specimens and provides a methodological basis for building woody plant DNA databases. The identified high-variability regions offer potential molecular markers for wood identification and origin tracing, supplying preliminary technical insights for biodiversity conservation, sustainable resource use, and legal trade oversight.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of freezing on cutting forces in green Scots pine sapwood and heartwood","authors":"Yunbo Huang,&nbsp;Daniel Chuchala,&nbsp;Magnus Fredriksson,&nbsp;Mikael Svensson,&nbsp;Olof Broman","doi":"10.1007/s00226-026-01793-4","DOIUrl":"10.1007/s00226-026-01793-4","url":null,"abstract":"<div><p>Freezing can notably alter the cutting behaviour of wood, yet quantifying its influence is challenging due to variability in wood properties and the interplay of factors such as moisture content (MC), temperature and density. This study uses a tightly controlled design to isolate the effect of freezing on cutting forces of Scots pine (<i>Pinus sylvestris</i> L.) in green state. Heartwood and sapwood were analysed separately due to their distinct MC, at four temperature levels: <span>(-20,^circ)</span>C, <span>(-10,^circ)</span>C, <span>(0,^circ)</span>C, and <span>(22,^circ)</span>C. A data-driven machine-learning approach, combined with SHAP analysis and partial dependence plots, was used to identify and interpret the most influential variables on main cutting force. Results show that heartwood at 30% MC is only slightly affected by freezing, whereas sapwood at over 150% exhibits a pronounced drop in friction between <span>(0)</span> and <span>(-10,^circ)</span>C as free water freezes. This phase change alters the cutting mechanism, reducing friction but increasing resistance when cutting through ice and the ice–wood composite, with the net effect depending on uncut chip thickness. These findings provide mechanistic insight into temperature-dependent cutting behaviour and inform optimisation of sawing strategies for frozen logs in industrial practice.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01793-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contribution of wood fibers to stem expansion in black locust","authors":"Adam Miodek,&nbsp;Aldona Paulina Miodek,&nbsp;Paweł Kojs","doi":"10.1007/s00226-026-01791-6","DOIUrl":"10.1007/s00226-026-01791-6","url":null,"abstract":"<div><p>Radial stem growth in trees and shrubs is a fundamental process influencing their development and adaptation. Traditionally, radial growth has been attributed primarily to the radial expansion of cambial cells and their derivatives. In this study, we investigated the contributions of both the tips and bodies of wood fibers to radial growth in black locust. An anatomical and statistical approach was applied to the analysis of collected plant tissues, including the vascular cambium and secondary xylem, which were prepared using a Tesla ultramicrotome. Our study indicated that, beyond commonly recognized radial enlargement of cells associated with cell wall growth, secondary xylem radial enlargement within black locust is also driven by fiber development in two distinct ways: (1) axial intrusive growth coupled with transverse expansion of wood fiber tips, and (2) shape transformation of developing fiber bodies in the transverse plane, from rectangular to more circular forms. We hypothesize that this mechanism may provide an adaptive advantage by optimizing resource allocation while maintaining mechanical stability, since transverse enlargement of fiber bodies appears to occur without substantial structural carbon investment prior to secondary cell wall deposition. These findings offer a novel developmental perspective on wood formation in black locust by challenging the classical paradigm of symplastic growth in the secondary xylem differentiation zone. These new insights may have implications for optimizing wood production and for advancing our fundamental understanding of developmental mechanisms in angiosperm woody plants.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01791-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148750820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pressurized liquid extraction for profiling wood metabolites by GC×GC-TOFMS","authors":"Ewenet Yemane Mesfin,&nbsp;Seo Lin Nam,&nbsp;Martin Williams,&nbsp;Isabelle Duchesne,&nbsp;Nathalie Isabel,&nbsp;A. Paulina de la Mata,&nbsp;James J. Harynuk","doi":"10.1007/s00226-026-01784-5","DOIUrl":"10.1007/s00226-026-01784-5","url":null,"abstract":"<div><p>Wood is an essential resource, deeply embedded in cultures and industries. Reliable analytical methods are needed to improve chemical profiling approaches used in wood research and authentication studies. Metabolite profiling using gas chromatography (GC) coupled to mass spectrometry (MS) has previously been explored as a tool for characterizing wood chemical compositions. Forensic wood identification approaches include anatomical observation, DNA barcoding, and chemical profiling using direct analysis in real-time (DART) coupled to time-of-flight mass spectrometry (TOFMS). While these methods have notable advantages, they face limitations, particularly in accurately identifying species and analyzing chemically treated wood products. Although GC-MS is not as rapid as DART, its ability to separate isomeric compounds prior to mass spectrometric detection offers enhanced specificity. A critical first step in GC-MS based profiling is the efficient extraction of metabolites from wood sample. Liquid extraction (LE) is a commonly used method for this purpose; however, conventional LE typically requires up to 18 h at room temperature. Pressurized liquid extraction (PLE) leverages high pressure and temperature to enhance solvent penetration and extraction efficiency, significantly reducing processing time. In this study, key PLE parameters, including sample mass, temperature, extraction time, and number of extraction cycles, were systematically optimized for wood sample extraction. The optimized PLE method was then compared with conventional LE and ultrasonic-assisted extraction (UAE). Results showed that PLE produced metabolite profiles comparable to those obtained using LE and UAE, while reducing total extraction time to 17 min. Although a small number of metabolites were only detected in PLE extracts, the overall chromatographic profiles were highly similar across the three methods. These results demonstrate that PLE is an effective and time-efficient alternative for wood metabolite extraction.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization and mechanism of furfurylated poplar veneer for high sound insulation performance","authors":"Shuangshuang Wu,&nbsp;Binbin Huang,&nbsp;Xin Tao,&nbsp;Wei Xu,&nbsp;Stavros Avramidis","doi":"10.1007/s00226-026-01787-2","DOIUrl":"10.1007/s00226-026-01787-2","url":null,"abstract":"<div><p>The need for eco-friendly and effective sound-insulation building materials has increased as noise pollution has become a more pressing environmental problem in China. Wood’s natural low density limits its sound insulation performance, so impregnation and densification are frequently employed to improve its sound insulation performance. However, existing treatment technologies lack systematic theoretical support and specialized process design targeted at acoustic properties. Therefore, this study uses fast-growing poplar veneer and low-molecular-weight furfuryl alcohol (FA) to construct sound-insulating units at the micro scale to develop a high-performance wood-based acoustic material. By combining single-factor experiments with response surface methodology (RSM), the optimal formulation was determined to be 32 wt% FA, 4 wt% MA, and 25 wt% IPA, under which the sound transmission loss of the modified veneer increased to 23.28 dB, presenting an 88.05% improvement compared to untreated samples. Multiscale characterization demonstrated that the modified veneer displayed markedly enhanced surface hardness, acoustic impedance, and acoustic radiation damping. Furthermore, the FA resin effectively filled the lumens and pits, forming isolated pore structures and multiple internal reflection interfaces, thereby improving sound insulation by enhancing acoustic wave reflection and promoting sound energy dissipation.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pyrolysis-based valorization of Pinus sylvestris bark waste into bioactive fractions: LC–MS/MS analysis and antioxidant, anti-inflammatory, antidiabetic, and antibacterial activities","authors":"Abdulkadir Gül","doi":"10.1007/s00226-026-01786-3","DOIUrl":"10.1007/s00226-026-01786-3","url":null,"abstract":"<div><p>In this study, bark waste from the forest industry derived from <i>Pinus sylvestris</i> was processed by pyrolysis extraction, and the chemical compositions and biological activities of the resulting light (PLF) and heavy (PHF) fractions were comparatively investigated. When the extraction yields of the pyrolysis fractions were compared, PHF (20.80%) showed a significantly higher recovery than PLF (10.35%). Total phenolic content (TPC) was higher in the PHF (365.80 GAE/g), whereas total flavonoid content (TFC) was concentrated in the PLF (200.80 mg QE/g). LC–MS/MS analyses of the PHF fraction, which exhibited more pronounced biological activity, revealed caffeic acid (7190.65 µg/g) and protocatechuic acid (2694.30 µg/g) as the predominant phenolic compounds. Antioxidant capacity analyses indicated that the PLF exhibited stronger radical scavenging activity, lower IC₅₀ values in DPPH and ABTS⁺• assays (50.01 and 101.60 µg/mL, respectively) and higher TAC values (901.00 mg TE/L). Fe³⁺ and Cu²⁺ reducing assays demonstrated strong redox activity in both fractions, with Cu²⁺ reducing capacity particularly higher in PLF. In enzyme inhibition studies, the PHF showed stronger inhibition against 5-lipoxygenase (IC₅₀ = 29.28 µg/mL) and α-glucosidase (IC₅₀ = 82.50 µg/mL) compared to PLF. The antibacterial potential of the fractions was assessed using <i>Escherichia coli</i>,<i> Pseudomonas aeruginosa</i>,<i> Enterococcus faecalis</i>,<i> Staphylococcus aureus</i>,<i> Salmonella typhimurium</i>,<i> and Klebsiella pneumoniae</i>. The PHF exhibited significant inhibition zones, particularly against <i>P. aeruginosa</i> (17.40 mm) and <i>S. aureus</i> (13.40 mm). Consequently, these findings suggest that pyrolysis-based fractionation may be an effective and sustainable method for converting <i>P. sylvestris</i> bark waste into functional fractions with high antioxidant, anti-inflammatory, antidiabetic, and antibacterial potential.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01786-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Water sorption in wood: temperature and extractive influence on heat of sorption","authors":"Jingbo Shi,&nbsp;Fuji Zhou,&nbsp;Luxiao Qian,&nbsp;Huijun Dong,&nbsp;Jiabin Cai,&nbsp;Jianxiong Lv,&nbsp;Stavros Avramidis","doi":"10.1007/s00226-026-01788-1","DOIUrl":"10.1007/s00226-026-01788-1","url":null,"abstract":"","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148465695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}