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Correction J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-23
Published in Journal of Wood Chemistry and Technology (Vol. 44, No. 2, 2024)
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Modified phenol formaldehyde resin with sodium silicate as a low-cure wood adhesive J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-21 Muh Wahyu Syabani, Indra Perdana, Rochmadi Rochmadi
Phenol-formaldehyde (PF) resin is a common adhesive in the plywood industry with the main advantage of its water resistance and high bonding strength. However, PF has unfavorable high curing temper...
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Improved reducing sugars production from enzymatic hydrolysis of rubber wood by surfactant-assisted hydrothermal pretreatment J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-17 Fen Yin, Tianyu Jiang, Xingyu Lu, Wenxuan Bie, Xiaojuan Wang, Xiaojun Ma, Dongna Li
In this work, a facile and environmentally friendly strategy was proposed for the production of reducing sugars from enzymatic hydrolysis of rubber wood by surfactant-assisted hydrothermal pretreat...
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Revisiting the mechanism of β-O-4 bond cleavage during acidolysis of lignin. Part 9: Comprehensive results for guaiacyl-type compounds and the difference in participation mode of bromide and chloride anions between C6-C3-type and C6-C2-type compounds J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-17 Qiaoqiao Ye, Kyoko S. Katsumata, Toshihiro Komatsu, Tomoya Yokoyama
A phenolic β-O-4-type lignin model compound with a C6-C3-type side-chain and two guaiacyl nuclei and its derivatives were individually acidolyzed in aqueous 82 vol% 1,4-dioxane containing 0.2 mol/L...
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Aqueous ethanol fractionation of softwood and hardwood kraft lignins: Impact on purity and properties J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-16 Daniel Beaudoin, Sophie Langis-Barsetti, Alain Gagné, Ernest Palus, John Inwood, Mohan K. R. Konduri
Industrial kraft lignins are mixtures of macromolecular components variable in both structure and composition. To maximize their value in commercial applications, they often need to be homogenized ...
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Mechanical and morphological bond line properties of silver birch wood pretreated by aqueous extraction J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-12 Max Engelhardt, Thomas Böger, Michael Gigl, Chen Meng, Klaus Richter, Antoni Sánchez-Ferrer
While bonding for structural applications in Europe was limited to only a few softwood species in the past, forest alterations toward more climate stability will increase the diversity of tree spec...
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Effects of physicochemical characteristics on natural durability of eucalypts woods to wood-decaying fungi J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-01 Pedro Nicó de Medeiros Neto, Juarez Benigno Paes, Fabricio Gomes Gonçalves, Yonny Martínez López, Nédia Pereira Correia Mendes Correia, Renato Nogueira Antas
This study aimed to relate the biological resistance of seven eucalypt woods to wood-decaying fungi with physicochemical characteristics of wood. Two 12-year-old trees per species were randomly sam...
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Chemical-free saturated steam pretreatment of oil palm empty fruit bunch for improved enzymatic saccharification J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-01 Saleha Shamsudin, Ezyana Kamal Bahrin, Mohd Ali Hassan, Yoshihito Shirai
Oil palm empty fruit bunch (EFB) as the main lignocellulosic residue from the oil palm industry serves as suitable feedstock for enzymatic saccharification, yielding fermentable sugars. Due to comp...
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Acid-catalyzed Kraft lignin liquefaction for producing polyols and polyurethane foams J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-01 K. T. Barbosa, Silvia Helena Fuentes Da Silva, Washington Luiz Esteves Magalhães, Sandro Campos Amico, Rafael de Avila Delucis
This study investigates the use of acid-catalyzed lignin liquefaction for the production of polyols and polyurethane foams. The liquefaction process was carried out using a kraft lignin powder foll...
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A zero-waste one step method to produce carboxy nanocellulose from the untreated barley and wheat straws J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-01 Sanmitra Barman, Sambhunath Bera
A zero-waste simple method was developed to produce carboxy nanocellulose directly from the untreated barley and wheat straw by treating with nitric acid (55%) and sodium nitrite at 40 °C for 12 h....
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Micro-mechanism analysis of the influence of sawdust with different replacement ratio on concrete performances J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-02-01 Te Li, Laire Tier
As a waste of wood processing, a large accumulation of sawdust will have an impact on the environment. In this paper, sawdust is added to concrete to explore the influence of sawdust on the perform...
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Advances in photocatalytic lignin depolymerization: photocatalytic materials and mechanisms J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-25 Guanhong He, Jinhai Hu, Changyan Sun, Yuan Zhao, Hong Yan
Lignin, as the only non-petrochemical resource in nature that can provide renewable aromatic-based compounds, has a complex and recalcitrant structure. Photocatalysis has received increasing attent...
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Surface analysis of different wood polymer composites exposed to artificial weathering J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-25 Andrey Pereira Acosta, Sandro Campos Amico, Rafael de Avila Delucis, André Luiz Missio, Marlon Bender Bueno Rodrigues, Ana Carolina Rodrigues Ribeiro, Matheus de Paula Goularte, Darci Alberto Gatto
This study presents a superficial analysis of different wood polymer composites (WPC) comprising polystyrene (WPSC), poly(furfuryl alcohol) (WPFAC), and pine resin (WPRC) when exposed to artificial...
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Production of high-quality dissolving pulp from eucalyptus wood chips using deep eutectic solvent and elemental chlorine-free bleaching J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-23 Yahya Hamzeh, Claire Monot, Nathalie Marlin, Auphélia Burnet, Gérard Mortha, Michel Petit-Conil, Panagiota Rigou
Deep eutectic solvent (DES) provides promising alternatives to conventional pulping and cellulose purification with significantly lower energy consumption and impacts on the environment. In this wo...
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Anti-inflammatory, antioxidant, and antitermite valorization of extractable substances from the heartwood of four major species of the Gabonese forest-timber sectors J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-01 Christ Stone Arnaud Bopenga Bopenga, Line Edwige Mengome, Marie André N’negué ép. Mezui-Mbeng, Hervise Harmand Ndinga, Edou Engonga Prosper
The aim of this study was to focus on the chemical characterization and the anti-inflammatory, antioxidant, and anti-termite properties of extractable substances from the heartwood of Tieghemella a...
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Optimization of delignification depth of wood surfaces for skin polymer impregnation J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-01 Kyoung-Chan Park, Byeongho Kim, Hanna Park, Yesun Kim, Nam-Hun Kim, Se-Yeong Park
We controlled the degree of surface delignification of a wood specimen to impart functionality to its surface and injected a polymer into the porous structure to investigate using it as a functiona...
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Development of wood preservatives to prevent biodeterioration J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-01 Himadri Rajput, Preethi Rajan, Shujun Li, Glenn W. Stratton, Gordon Murray, Quan (Sophia) He
Wood is a widely available material that has long been used in various applications. Protection of wood products from degradation due to biotic and abiotic factors is crucial. Traditional wood pres...
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Correction J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-01
Published in Journal of Wood Chemistry and Technology (Vol. 43, No. 6, 2023)
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Increasing packaging grade kraft pulp yield by using sodium methyl mercaptide J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-01 Ravikant Patil, Adriaan van Heiningen
The objective of this work was to determine the effect of sodium methyl mercaptide (SMM) on the yield of the packaging-grade kraft pulp. Based on our experience with bleachable grade kraft pulping ...
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Structure and property variations of mixed hardwood kraft lignins J. Wood Chem. Technol. (IF 2.0) Pub Date : 2024-01-01 Xiao Jiang, Runkun Sun, Matthew Kollman, Hou-min Chang, Hasan Jameel
Kraft lignin as an emerging renewable feedstock can be used to produce fuels, chemicals, and materials. Hardwood kraft lignin bears intrinsic variation due to wood species and the isolation process...
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Preparation and characterization of plywood panels using recycled HDPE as a formaldehyde-free adhesive: A comparative study J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-08-27 Alireza Ashori, Vahid Heydari, Nadir Ayrilmiş
Abstract Formaldehyde-based resins such as urea-formaldehyde (UF) are the most widely used adhesives in the plywood industry. However, due to the concerns about formaldehyde toxicity, there is a need to develop formaldehyde-free adhesive materials. Therefore, the present study aimed to minimize or eliminate the harmful effects of UF resin by using recycled high-density polyethylene (HDPE) from post-consumed
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Preparation of silica nanoparticles modified nanofibrillar cellulose and its metronidazole drug delivery properties J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-08-10 Maryam Zirak, Hessam Jafari, Roya Ferdose, Mahnaz Saraei
Abstract Nanofibrillar cellulose (NFC) was extracted by alkaline treatment of Yucca leaves followed by bleaching using H2O2, and then modified by silica nanoparticles (NPs). Obtained silica NPs modified NFC (SiO2 NPs-mNFC) was characterized using FT-IR, XRD, TGA, SEM, TEM and EDX analysis, and its metronidazole drug delivery properties were studied. However bare NFC showed higher loading of metronidazole
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Bioactive compounds, pharmacological activity and food application of Biancaea sappan (Indian red wood): A critical review J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-07-22 Bharti Sharma, Simple Sharma, Archu Harchanda
Abstract Sappanwood is a resourceful, flowering tree belongs to the family Leguminosae with its origin mainly reported from Southeast Asia. It has been used for ages to cure human ailments including heart diseases, jaundice, respiratory problems, coughs, wounds, and allergies. The different parts of sappanwood including wood, heartwood, seeds, leaves, and bark are reported with bioactive constituents
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Caffeine-treated wood as an innovative filler for advanced polymer composites J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-07-20 Dorota Tomczak, Magdalena Woźniak, Izabela Ratajczak, Anna Sip, Marlena Baranowska, Karol Bula, Iveta Čabalová, Tatiana Bubeníková, Sławomir Borysiak
Abstract Polymer composites, based on the wood flour originating from an invasive black cherry (Prunus serotina Ehrh.) treated with caffeine to achieve increased bio-resistance, were obtained in this study. The caffeine-treated wood had a significant effect on the supermolecular structure of polymer matrix, resulting in a high content of polymorphic β-PP phase, as well as an increase in nucleation
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Microscopic features and untargeted metabolomics reveal special features of the black-patterning in spalted heartwood of Diospyros spp. J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-07-03 Zhi Li, Rui Yang, Xiaorui Yang, Huiwen Jia, Jian Qiu
Abstract Spalted heartwood is valued for its vibrant colors, patterns, and decay-free appearance. Using microscopy, scanning electron microscopy with energy-dispersive spectroscopy, transmission electron microscopy, and non-targeted metabolomics, we aimed to study some distinctive features of black patterning. The results showed that cocci might be associated with the production of spalted heartwood
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A novel approach to extract and characterize vacuum-pressurized bamboo fibers using mechano-chemical techniques J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-06-28 Yogendra Kumar Verma, Amit Kumar Singh, M. K. Paswan, Priyeshiv Kumar Gurmaita
Abstract This current study aims to extract bamboo fibers from different species of bamboo using the mechanochemical method and investigate their properties. The bamboo species used in this study were Dendrocalamus, Bambusa balcoaa, Oliveri, Asamica, and Chimono. The vacuum-pressurized impregnation treatment process was employed for treating the bamboo. The mechanochemical method was chosen for extracting
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A comparative study of the mineral elements in different medicinal plant parts of Daphne altaica Pall. J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-06-22 Yinping Li, Qing He, Xiaoqing Zhu, Zhufeng Geng, Yi Wang, Jin Li
Daphne altaica Pall. is an important plant in traditional Chinese medicine. Mineral elements play an important role in the formation of active ingredients in medicinal plants. In this study, 14 min...
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Efficient electromagnetic interference shielding of three-dimensional hydrophobic Cu/wood/Cu porous composites J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-06-14 Yanfei Pan, Shuaiqi Hu, Xin Zheng, Nianguang Hu, Fengqi Qiu, Mayin Dai, Qiang Guo, Xiaofang Yu, Yinan Hao, Minyan Lv, Jintian Huang
Abstract Three-dimensional hydrophobic and efficient electromagnetic shielding Cu/wood/Cu laminated composites were prepared by a simple one-step electroless Cu process. The number of electroless Cu on wood surface and the treatment time of electroless Cu were used as variables. The effects of independent variables in the range from 0.3 ×10−3 to 3.0 GHz (L-band) on the conductivity, water contact angle
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Preparation of highly conductive silver-plated porous wood J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-05-22 Lei Li, Zejin Tian, Wenxin Lu, Ming Tian, Mingzheng Hao, Wencai Wang
Abstract A recent research focus has been on developing sustainable and renewable high-performance electromagnetic shielding materials. We present here a robust and effective top-down method in which polydopamine (PDA) is added to delignified wood via in situ polymerization, and Ag particles are successfully deposited in the wood channel via PDA’s adhesive property with a subsequent silver mirror reaction
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Variable-temperature solid-state NMR analysis of woody materials in the presence of small hydroxyl molecules J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-05-19 Masakazu Nishida, Mitsuru Abe, Masako Seki, Tsunehisa Miki, Hiroyuki Sugimoto
Abstract Interactions between the hierarchical structure of Japanese cypress and small hydroxylic solvents with high polarity were studied using variable-temperature 13C cross-polarization and magic-angle spinning nuclear magnetic resonance (CP/MAS) NMR spectroscopy, including low-temperature measurements. 13C CP/MAS NMR spectra were enhanced by dipolar interactions closely related to 1H–13C magnetization
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Study on water resistance improvement of wood dowel rotation welding joints J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-05-19 Suxia Li, Jiarong He, Jiawei Wu, Yang Yang, Qiyu Sun, Xiaoning Lu, Zhongfeng Zhang
Abstract Rotation welding of wood dowels has the advantages of high bonding strength, fast processing speed and green environmental protection, and is suitable for jointing nodes in furniture and wood products. However, most wood friction welding specimens have poor water resistance where the welded joints are more likely to be damaged in wet environments, which greatly limits their wider application
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Fabrication and mechanical properties of waste wood chips/cements composites for paving materials J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-04-25 Xiao Song, Haiqing Zhou, Ziqiang Liu, Xiaolong Li, Chunpeng Han
Abstract In this article, cement-based wood composites (CWC) were prepared by the hydrostatic method using waste wood chips as filler material and cement mortar as the binder. The effects of wood content, wood particle size, and wood modification method on flexural strength, modulus of elasticity, and toughness were experimentally investigated. The results showed that the flexural toughness of the
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Antifungal activity in vitro using kraft-pulping crude black liquor and hydrothermal treatment black liquor against wood-decaying fungi J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-04-24 Karen Keli Barbosa Abrantes, Rayane Monique Sete da Cruz, Thiago Vinicius Barros, Eliezer Rodrigues de Souto, Juarez Benigno Paes, Lucio Cardozo-Filho
Abstract We investigated antifungal properties of two kraft-pulping liquors as potential environmentally friendly wood preservatives targeting in deterioration by white rot (WRF) and brown rot fungi (BRF). The in vitro antifungal activity of crude black liquor (BL) and the product from a hydrothermal gasification (BLWSupc) process were investigated. Both products showed high bioactivity, with BL completely
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Influence of inorganic additives on ash adhesion to a metal mesh during bamboo powder combustion J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-04-13 K. Tanoue, N. Umehara, M. Fujita, Y. Ninomiya
Abstract If the high melting point oxides added to the bamboo powder, the ash adhesion on the metal mesh during combustion was counterproductive in some cases, but effective in others. For SiO2 addition, although the shrinkage temperature (SHT) and part fusion temperature (PFT) were higher than that for only bamboo combustion due to the formed KAlSiO4 whose melting temperature was 1750 °C, the amount
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Changes in chemical structures and molar mass parameters of birch wood powder by ethylene diamine treatment J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-04-11 Yuko Ono, Miyuki Takeuchi, Akira Isogai
Abstract It is necessary to delignify wood samples and treat them with ethylene diamine (EDA) before they are dissolved in 8% (w/v) lithium chloride/N,N-dimethylacetamide (LiCl/DMAc) prior to size-exclusion chromatography (SEC) analysis. In the present study, the effects of delignifying birch wood powder 0–3 times with NaClO2 and subsequently treating it with EDA on its solubility in 8% (w/v) LiCl/DMAc
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Ultrasound pretreatment and enzymatic deinking by using bacterial cellulases from rice husk J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-03-24 Saharman Gea, Rumondang Bulan, Emma Zaidar, Averroes Fazlurrahman Piliang, Noni Oktari, Sri Rahayu, Yasir Arafat Hutapea, Reka Mustika Sari
Abstract Ultrasonic pretreatment could improve the accessibility of enzymes to cellulosic fibers, hence expanding the access of enzymes to effectively remove ink from paper. In this study, enzymes were isolated from paddy rice husks and utilized for biodeinking process. The characterizations of deinking from the pulp filtrate and paper samples were carried out to understand the effect of bacterial
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Structure of oxidized hydrolysis lignin J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-03-17 Dmitriy N. Zakusilo, Edward I. Evstigneyev, Alexandr Yu Ivanov, Anton S. Mazur, Elena A. Bessonova, Oussama Abdelhamid Mammeri, Aleksander V. Vasilyev
Abstract The main goal of this study was the elucidation of structures of products of oxidation of industrial hydrolysis lignin (HL) obtained in the system H2O2-H2SO4-H2O. It was found that the obtained oxidized hydrolysis lignin (OHL) contained structural fragments of muconic acid dilactone. The latter appeared as a result of the oxidation of aromatic ring of HL into unstable structures of 3,4-dihydroxyadipic
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Shape-stable composite phase change materials encapsulated by lignin-based ordered porous carbon for thermal energy storage J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-03-10 Hong Pan, Tianyang Li, Lihui Xu, Keting Li, Yong Shen
Abstract This paper showed two bio-based shape-stable composite phase change materials (PCMs) which were prepared through a convenient vacuum impregnation method. Lignin-based ordered porous carbon (LOC) was the porous supporting material, polyethylene glycol (PEG) and paraffin (PA) was the phase change substance in this work. The maximum loading of PCMs in the obtained LOC/PEG and LOC/PA are 70% and
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Synthesis of mesopore-dominated porous carbon with ultra-high surface area via urea-assisted KOH activation J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-03-10 Liang Zheng, Huimei Wang, Xiaohui Wang, Yu Liu, Zhong Liu, Shoujuan Wang, Yaofeng Lin
Abstract A mesoporous porous carbon (PC-KOH + Urea) with ultra-high specific surface area (SSA) was prepared from steam exploded poplar through urea-assisted KOH activation. The obtained PC-KOH + Urea had an ultra-high SSA of 3316 m2 g−1 and a total pore volume (VT) of 1.96 cm3 g−1, much higher than that of PC-KOH and PC-Urea, produced by KOH and urea activation alone, respectively. Meanwhile, PC-KOH + Urea
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Promotive or suppressive effect of co-existing nucleophiles on lignin condensation in alkaline pulping processes J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-03-03 Toshihiro Komatsu, Kazutaka Yamauchi, Tomoya Yokoyama
This study aimed to quantitatively examine how the addition of a strong or weak nucleophile (1.0 mol/L) to a soda cooking treatment (1.0 mol/L NaOH) at 150 °C affects the disappearance and condensa...
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Hierarchical Co-Ni layered double hydroxide decorated on hollow carbon spheres from wood for high-performance supercapacitors J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-03-03 Xiaojun Ma, Ranran Guo, Yujuan Qiu, Zhaozhao Yang, Dongna Li
Abstract In this work, hollow carbon spheres from wood (WHCS) were prepared by liquefaction, emulsification, half-curing, carbonization and activation steps. Then, Co-Ni layered double hydroxide nanosheets (CoNiLDHs) were grown on the surface of hollow carbon spheres, forming a CoNiLDHs/WHCS composite with a core–shell structure. Benefitting from the excellent electrochemical activity of CoNiLDHs and
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Effectiveness of three Gabonese tree resin fractions combined with tebuconazole as wood preservative formulations J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-02-09 Walter Fiacre Bedounguindzi, Kévin Candelier, Prosper Edou Engonga, Stéphane Dumarçay, Marie-France Thévenon, Philippe Gérardin
Abstract Wood treatments based on oleoresins from Aucoumea Klaineana, Canarium schweinfurthii and Dacryodes edulis have shown interesting anti-termites properties but poor resistance to fungi and leaching. Oleoresins were combined with tebuconazole to produce both antifungal and anti-termite wood preservatives formulations with an expected better fixation of chemicals mixtures in the wood. Beech and
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N-Hydroxysuccinimide-catalyzed facile synthesis of high-phenolic-hydroxyl-content lignin for enhanced antioxidant properties J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-02-06 Zhili Zhang, Fengfeng Li, Ji Won Heo, Jiansong Chen, Ji Woo Kim, Min Soo Kim, Yong Sik Kim
Abstract The formation of phenoxy radicals that scavenge free radicals is critical for improving the antioxidant activity of lignin. Novel modified lignin with high phenolic hydroxyl content and enhanced antioxidant properties was prepared from kraft lignin using a two-step method. First, diethylenetriamine-modified amine lignin (DAL) was synthesized via the Mannich reaction. Second, the DAL was reacted
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Isolation of high-purity friedelin and 3-hydroxyfriedel-3-en-2-one from cork smoker wash solids J. Wood Chem. Technol. (IF 2.0) Pub Date : 2023-01-02 Zbigniew Pakulski
Abstract Cork smoker wash solids (black wax) that is obtained in the process of making corkboard by treating the ground cork with superheated steam is useless waste, generating environmental problems. On the other hand, black wax is a rich source of friedelin (1) and 3-hydroxyfriedel-3-en-2-one (3), pentacyclic triterpenoids belonging to the friedelane family. In the present work, a simple, fast, and
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Availability of extractives from various Norway spruce (Picea abies) stumps assortments J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-12-09 Eelis S. Halmemies, Hanna E. Brännström, Mikko Karjalainen, Juha Nurmi, Raimo Alén
Abstract Stumps and knotwood of Norway spruce (Picea abies) are valuable sources of wood extractives. Although lignans from knotwood have already been utilized in value-added products, the behavior and valorization of stump-derived extractives are less studied. In this study, the composition of lipophilic and hydrophilic extractives, particularly lignans, from various spruce stump samples (stump bottom
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Statistical optimization of enzymatic saccharification of sodium hydroxide pretreated parthenium hysterophorus biomass using response surface methodology J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-11-14 Naveen Kumar, Mahak Mittal, Anita Yadav, Dinesh Kumar Saini, Neeraj K. Aggarwal
Abstract The biomass of the lignocellulosic weed P. hysterophorus is abundant and wasteful in India. This study aimed to investigate the lignocellulosic weed P. hysterophorus for reducing sugar production. Therefore, several pretreatment methods, physical (Steam and Microwave), and chemical (alkalis and acids) were investigated to determine the statistically best conditions for enzymatic hydrolysis
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Impact of steam-sterilization and oven drying on the thermal stability of phenolic extractives from pine and black locust wood J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-09-23 Viljem Vek, Ida Poljanšek, Romana Cerc Korošec, Miha Humar, Primož Oven
Abstract The main goal of the investigation was to measure and estimate the thermal stability of pinosylvin, pinosylvin monomethyl ether, robinetin, and dihydrorobinetin, i.e., characteristic compounds of wood of Scots pine and black locust, respectively. The pure compounds were analyzed with chromatography before and after they were steam-sterilized and oven-dried. Detailed thermogravimetric analysis
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Preparation of pH-responsive lignin via a thiol-yne reaction and its application in hydrogel J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-09-21 Liangliang An, Jiansong Chen, Ji Won Heo, Ji Woo Kim, Hyung Mo Jeong, Duck Hyun Youn, Yong Sik Kim
Abstract Multifunctional modification is a feasible means of improving the high value-added application of lignin. In this study, a novel pH-responsive lignin was synthesized via a green and efficient ultraviolet-induced thiol-yne reaction. Chemical structure analyses confirmed that the thiol-yne reaction was successful, and that the tertiary amino groups were attached to the lignin macromolecules
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Preparation of thermal-responsive Pickering emulsion by ATRP modified lignin microspheres J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-09-20 Rui Wen, Shiyu Fu
Abstract Soda lignin or lignosulfonate from paper mills are often directly applied as surfactant for cement dispersion due to the presence of hydrophilic and hydrophobic groups in lignin. They are also applied to Pickering emulsion, but the efficiency is not so good. In this work, we modified lignin by grafting poly(ethylene glycol) methyl ether methacrylate (PEGME), and then the modified-lignin self-assembled
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Physical and mechanical characteristics of composite woods fiber-based polyester binders J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-09-01 A. D. Laksono, L. Ernawati, R. Abdullah, S. Hardianti, T. Agustina, M. P. D. Lubis, I. Y. Wardhani, N. H. Hassan
Abstract Renewable natural-based composite materials, including wood fibers and plants, represent emerging research interests that continue to be developed today. Among the 120 types of Indonesian wood traded, Sengon, Keruing, and Yellow Meranti are most widely used in the wood industry. The processing of wood produces end waste products, for example sawdust, which have the potential to be used as
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Multispecies, multisite, multi-age PLS regression models of chemical properties of eucalypts wood using Fourier Transformed near-Infrared (FT-NIR) spectroscopy J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-09-02 Andriambelo Radonirina Razafimahatratra, Tahiana Ramananantoandro, Sophie Nourrissier-Mountou, Chrissy Garel Makouanzi Ekomono, José Carlos Rodrigues, Zo Elia Mevanarivo, Gilles Chaix
Abstract Near Infrared Spectroscopy (NIR) is often used to perform high throughput phenotyping on thousands of genotypes using prediction models with high variability. A study was therefore undertaken to analyze the potential of multispecies, multisite and multi-age NIR calibration models of seven chemical properties of eucalyptus wood. The models are based on 358 samples selected among more than 5000
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Potential assessment of hybrid biochar from the date palm and pistachio residues J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-08-27 Azadeh Nikkhah Shahmirzadi, Saeed Kazemi Najafi, Habibollah Younesi
Abstract The objective of this study was to examine the properties of hybrid biochar produced from date palm (D) and pistachio (P) residues and their co-pyrolysis at mixing ratios of 60:40 (by weight). Biochars were produced at 500 °C through pyrolysis in a tube furnace and subsequently characterized. Results indicated that pistachio biochar (PBC) had a high carbon content (81.02 wt%) and a low oxygen
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Preparation of superhydrophobic coatings with alkyltrichlorosilanes for Pinus kesiya wood J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-08-25 Yulan Jian, Shaowei Lu, Wei Tang, Mingjun Shao, Fuhua San, Hui Wan, Linkun Xie
Abstract To explore the typical alkyltrichlorosilane and optimal volume ratio of the alkyltrichlorosilane-toluene solutions for preparing superhydrophobic Pinus kesiya wood, four alkyltrichlorosilanes: methyltrichlorosilane (MTCS), butyltrichlorosilane (BTCS), dodecyltrichlorosilane (DTCS), and octadecyltrichlorosilane (OTCS) were each used to modify the wood samples at different volume ratios of
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Chemical analysis of CCA-C treated wood residues, charcoal and wood tar J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-08-25 Allan Ewerton Rezende Euflosino, Juarez Benigno Paes, Arlon Bastos da Rosa, Marina Donária Chaves Arantes, Fabricio Gomes Gonçalves, Alexandre Florian da Costa, Fernanda Dalfiôr Maffioletti
Abstract After its useful life, treated wood residues can be toxic, and its disposal, often incorrect, and several countries have researched measures to reuse or recycle it. This study evaluated the potential for pre-extraction of chromated copper arsenate (CCA-C) treated wood for combustion, either direct landfilling or agricultural use (organic compost or biochar). Treated wood residues were transformed
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Chemical and morphological modification of softwood and hardwood surfaces by an oxygen glow discharge plasma J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-08-25 Arash Jamali, Philip D Evans
Abstract High-energy radiation preferentially degrades cellulose and enriches lignin content at wood surfaces particularly in hardwoods. Accordingly, we hypothesize that a similar effect will occur at surfaces exposed to plasma. We test this hypothesis by plasma-treating pine and poplar veneers and assessing changes in the lignin and holocellulose-derived sugar-content of veneers; quantifying etching
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Revisiting the condensation reaction of lignin in alkaline pulping with quantitativity. Part 2: evaluation of self-condensation of vanillyl alcohol compared with its condensation with creosol under soda cooking conditions J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-07-15 Toshihiro Komatsu, Tomoya Yokoyama
Abstract Condensation of lignin is believed to interfere with delignification in alkaline pulping processes. The lack of clear evidence motivated us to quantitatively revisit it. This article evaluates the self-condensation of 4-hydroxymethyl-2-methoxyphenol (vanillyl alcohol, Va) in the simplest model system using Va and 2-methoxy-4-methylphenol (creosol, Cr) under the same soda cooking conditions
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Preparation of transparent wood containing carbon dots for application in the field of white-LED J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-07-12 Cong Zhang, Tao Lin, Xuefeng Yin, Xiaoyu Wu, Xiaoyao Wei
Abstract In this study, the biomass carbon dots (CQDs) with blue and yellow fluorescent colors was prepared by citric acid and urea, and two complementary fluorescent molecules, blue and yellow, were used as the donor-acceptor composite system of white fluorescent emission. Transparent wood-based composites which can emit white fluorescence under the excitation of near ultraviolet light were obtained
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Prediction of the extractives content of Eucalyptus globulus wood using NIR-based PLS-R models. Influence of spectral range and preprocessing on the percentage of outliers detected J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-07-08 R. Simões, A. Alves, P. S. Pathauer, D. A. Palazzini, S. N. Marcuci-Poltri, J. Rodrigues
Abstract Eucalyptus globulus is an important pulpwood source due to favorable wood characteristics, including low extractive content. However, there is significant tree-to-tree variation that can be exploited in breeding. This requires screening a large number of samples, which NIR and PLS-R make possible. Models are typically developed for a specific set of samples prepared in the same way. The question
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Properties and durability of wood impregnated with high melting point polyethylene wax for outdoor use J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-07-06 Lu Zhang, Xiaojun Yang, Zehua Chen, Haoran Dong, Yongjie Tan, Xinchun Bai
Abstract In order to develop a new wood product suitable for outdoor applications, a high melting point polyethylene wax was used for high-pressure impregnation treatment of wood. Properties of impregnated wood were studied. Wax in molten state was stable with low viscosity, good fluidity, and easily penetrate into the wood under high pressure. Full-cell process included vacuum (-0.06 MPa for 30 min)
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Understanding the effects of ionic liquids and antisolvent addition on the extraction and recovery of Pinus radiata bark components J. Wood Chem. Technol. (IF 2.0) Pub Date : 2022-06-24 Navneet K. Brar, Warren J. Grigsby, Stefan J. Hill, Laura Raymond, Cameron C. Weber
Abstract Ionic liquids (ILs) are being increasingly explored as extraction solvents due to their tunable properties, which can control their ability to dissolve an array of solutes. IL selection requires an in-depth understanding of the consequences of IL structure on extraction outcomes for different substrates. Here, 14 ILs containing cations and anions that have been systematically modified to examine