Search results: 30,318 results (approx.)

1. Spatial dynamics of firewood and charcoal production in Brazil.

Firewood and charcoal are widely used as solid fuels in thermal, mechanical, and electrical energy generation processes in Brazil. Their production comes from silviculture or extractivism. The objective of the present study is to verify whether the expansion of forestry crops, mainly of eucalyptus, ...

Author(s) : Bichel, A.; Telles, T. S.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Journal of Cleaner Production 2021 Vol.313

2. Conversion of beech wood into antiviral lignin-carbohydrate complexes by microwave acidolysis.

Virus pandemics pose a threat to human life. In this study, we developed a simple method for the conversion of woody biomass into antiviral substances. Beech wood was decomposed by microwave acidolysis in 0.5% aq H2SO4 and fractionated by silica gel chromatography. The obtained fractions exhibited...

Author(s) : Li RuiBo; Ouda, R.; Kimura, C.; Narita, R.; Nishimura, H.; Fujita, T.; Watanabe, T.

Publisher : American Chemical Society, Washington, USA

Journal article : ACS Sustainable Chemistry & Engineering 2021 Vol.9 No.28 pp.9248-9256

3. Pyrolysis behaviour, kinetics and thermodynamic data of hydrothermal carbonization - treated pulp and paper mill sludge.

Organic-rich pulp and paper mill sludge (PPMS) has the potential to become a renewable carbon source for producing alternatives to fossil-based product. In this work, PPMS treated by hydrothermal carbonization (HTC) was investigated based on its pyrolysis properties. The pyrolytic mechanism,...

Author(s) : Wang ShuLe; Wen YuMing; Hammarström, H.; Jönsson, P. G.; Yang WeiHong

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Renewable Energy 2021 Vol.177 pp.1282-1292 ref.66

4. Photosensitized reactions of a phenolic carbonyl from wood combustion in the aqueous phase - chemical evolution and light absorption properties of AqSOA.

Guaiacyl acetone (GA) is a phenolic carbonyl emitted in significant quantities by wood combustion that undergoes rapid aqueous-phase oxidation to produce aqueous secondary organic aerosol (aqSOA). We investigate the photosensitized oxidation of GA by an organic triplet excited state (3C*) and the...

Author(s) : Jiang WenQing; Misovich, M. V.; Hettiyadura, A. P. S.; Laskin, A.; McFall, A. S.; Anastasio, C.; Zhang Qi

Publisher : American Chemical Society, Washington, USA

Journal article : Environmental Science & Technology 2021 Vol.55 No.8 pp.5199-5211

5. Optically pure lactic acid production from softwood-derived mannose by Pediococcus acidilactici.

Softwood is of interest as a renewable carbon source for production of lactic acid. Softwood hydrolysate contains a high content of mannose. Lactic acid production from mannose by two modified strains, L-lactic acid producing Pediococcus acidilactici TY112 and D-lactic acid producing ZP26, was...

Author(s) : Campos, J.; Bao Jie; Lidén, G.

Publisher : Elsevier B.V., Amsterdam, Netherlands

Journal article : Journal of Biotechnology 2021 Vol.335 pp.1-8 ref.23

6. A simplified kinetic model based on a universal description for solid fuels pyrolysis: theoretical derivation, experimental validation, and application demonstration.

A kinetic model for the prediction of the conversion rate is crucial for research and development of biomass pyrolysis . The complexity of the existing kinetic studies and the diversity in pyrolysis kinetic data largely compromise the application of kinetic models. For the purpose of developing a...

Author(s) : Gu TianBao; Fu ZhuFu; Berning Torsten; Li XuanTian; Yin ChungEn

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Energy (Oxford) 2021 Vol.225

7. Complete NMR assignment and analysis of molecular structural changes of β-o-4 lignin oligomer model compounds in organic media with different water content.

The conformation of lignin in solvents is major key factors governing the physicochemical properties of aromatic polymers. However, the conformational changes of lignin in good and poor solvents is not clearly under-stood at the molecular level. In this study, short- (DP 2.77) and long-chain (DP...

Author(s) : Tokunaga, Y.; Nagata, T.; Kondo, K.; Katahira, M.; Watanabe, T.

Publisher : Walter de Gruyter, Berlin, Germany

Journal article : Holzforschung 2021 Vol.75 No.4 pp.379-389

8. Co-curing of epoxy resins with aminated lignins: insights into the role of lignin homo crosslinking during lignin amination on the elastic properties.

To improve the reactivity of lignin for incorporation into high value polymers, the introduction of amines via Mannich reaction is a commonly used strategy. During this functionalization reaction, intra- as well as intermolecular lignin-lignin crosslinking occurs, which can vastly change the...

Author(s) : Ott, M. W.; Dietz, C.; Trosien, S.; Mehlhase, S.; Bitsch, M. J.; Nau, M.; Meckel, T.; Geissler, A.; Siegert, G.; Huong, J.; Hertel, B.; Stark, R. W.; Biesalski, M.

Publisher : Walter de Gruyter, Berlin, Germany

Journal article : Holzforschung 2021 Vol.75 No.4 pp.390-398 ref.44

9. Promoting enzymatic hydrolysis of aggregated bamboo crystalline cellulose by fast microwave-assisted dicarboxylic acid deep eutectic solvents pretreatments.

Deep eutectic solvents (DESs) have received considerable interests as pretreatment solvents for biorefinery. In the present work, five kinds of dicarboxylic acids based DESs were introduced to pretreatments on moso bamboo (MB) with microwave irradiation assistance. Factors influencing the enzymatic ...

Author(s) : Ling Zhe; Tang Wei; Su Yan; Shao LuPeng; Wang Peng; Ren YuXuan; Huang CaoXing; Lai ChenHuan; Yong Qiang

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Bioresource Technology 2021 Vol.333

10. Enhanced enzymatic hydrolysis of cellulose by endoglucanase via expansin pretreatment and the addition of zinc ions.

One of the major limitations of lignocellulose conversion is the relatively low efficiency of cellulases. Expansins can act as an accessory protein to loosen the rigid cellulose structure and promote cellulose hydrolysis. However, the synergistic action of expansin is not well understood. In this...

Author(s) : Zhang PeiQian; Cui Mei; Huang RenLiang; Qi Wei; Thielemans, W.; He ZhiMin; Su RongXin

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Bioresource Technology 2021 Vol.333

11. GFPMX: a cobweb model of the global forest sector, with an application to the impact of the COVID-19 pandemic.

The GFPMX projects forest area and stock, consumption, production, imports, exports, and prices of industrial roundwood, fuelwood, sawnwood, wood-based panels, wood pulp, and paper and paperboard in 180 countries, and currently from 2018 to 2070. The core principle of the model is the cobweb...

Author(s) : Buongiorno, J.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Sustainability 2021 Vol.13 No.10 ref.25

12. New hemp variety seeding roman for pulp and paper industry.

A distinctive feature of Cannabis sativa L. as a biological species is a large accumulation on of wood (fires) in the stem. The main substance of wood is cellulose, which determines its elasticity and mechanical strength. Abroad, effective environmentally friendly technologies have been introduced...

Author(s) : Serkov, V. A.; Belousov, R. O.; Alexandrova, M. R.; Davydova, O. K.

Publisher : Izdatel'stvo Kolos, Moscow, Russia

Journal article : Mezhdunarodnyi Sel'skokhozyaistvennyi Zhurnal 2021 Vol.64 No.3 pp.86-89 ref.26

13. Wet extrusion molding of wood powder with hydroxy-propylmethyl cellulose and with citric acid as a crosslinking agent.

To mitigate global warming and the serious problems incurred by the disposal of petroleum-based plastics, it is important to develop derivatives of biomass materials that can be used as substitutes. To overcome the lack of thermoplasticity of wood, a wet extrusion molding process for wood powder...

Author(s) : Tao XiangYu; Nonaka, H.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.2314-2325 ref.21

14. Transparent wood prepared by polymer impregnation of rubber wood (Hevea brasiliensis Muell. Arg).

Transparent wood (TW), a new type of composite material with good optical transmittance and excellent mechanical properties, has attracted great interest in recent years. In this study, a hydrogen peroxide strategy was used on rubber wood (Hevea brasiliensis Muell. Arg) to eliminate lignin and...

Author(s) : Yue DaRan; Fu GuoHua; Jin ZhiYang

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.2491-2502 ref.23

15. An integrated approach for hemicellulose extraction from forest residue.

An alkali-mediated hydrothermal approach was optimized for partial extraction of high-purity hemicellulose (xylan) from a timber waste product (unbleached eucalyptus sawdust). The extraction process was: (a) extractives removal using sequential solvent extraction; (b) alkali-mediated hydrothermal...

Author(s) : Ghosh, D.; Tanner, J.; Lavoie, J. M.; Garnier, G.; Patti, A. F.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.2542-2547 ref.48

16. Beech wood impregnation with hydrolyzed wattle tannin.

Tannins and their toxic effects against various decay organisms have been interrelated for centuries. As natural products have gained more interest, waste from several production fields abundant in tannins has yielded promising components for wood preservation. In this work, the main approach was...

Author(s) : Oberle, A.; Paschová, Z.; Bak, M.; Gryc, V.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.2548-2556 ref.19

17. Fabrication of cellulosic paper containing zeolitic imidazolate framework and its application in removal of anionic dye from aqueous solution.

The combination of metal organic frameworks (MOFs) with other functional materials is a potential strategy for the preparation of advanced MOF-based materials. In this study, a simple approach is reported for the fabrication of cellulosic paper containing zeolitic imidazolate framework (ZIF-8)...

Author(s) : Chen ZiCheng; Zhang HuiWen; He XiangYang; Fan GuangYuan; Li XiaoSong; He ZhiBin; Wang GuanHua; Zhang LanHe

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.2644-2654 ref.35

18. Lignin-containing adhesion enhancer for wood-plastic composites.

A lignin-containing adhesion enhancer, a water-soluble polyelectrolyte complex (LPEC) composed of soda hardwood lignin (HASL) and polyethylenimine (PEI), and the effect of the treatment of hydrolyzed and ammoxidized aspen sawdust with the LPEC nanoparticles were studied relative to the properties...

Author(s) : Shulga, G.; Neiberte, B.; Jaunslavietis, J.; Verovkins, A.; Vitolina, S.; Shakels, V.; Livcha, S.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.2804-2823 ref.many

19. Pretreatment of kraft lignin by deep eutectic solvent and its utilization in preparation of lignin-based phenolic formaldehyde adhesive.

To improve the reactive sites of kraft technical lignin, a deep eutectic solvent (DES) composed of ZnCl2/lactic acid was used to pretreat kraft lignin from coniferous wood. The modified and unmodified lignin were used to replace different proportions of phenol (50%, 60%, and 70%) to prepare the...

Author(s) : Xian Xiteng; Wu ShuBin; Wei WenGuang; Zhang FengShan

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.3103-3120 ref.42

20. Utilization of melamine impregnated paper waste as a filler in thermoplastic composites.

The potential utilization of melamine impregnated paper (MIP) waste in thermoplastic composites was investigated. Composites were also manufactured utilizing wood flour (WF) at the same filler rates for comparison. The composites were manufactured using a compression molding method. The effects of...

Author(s) : Bozkurt, F.; Avci, B.; Mengeloğlu, F.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.3159-3170 ref.41

21. Molecular structure of poplar lignin obtained by p-Toluene sulfonic acid (p-TsOH) and formic acid delignification.

Poplar wood sawdust was chemically modified and separated into fractions using a mixture of p-toluene sulfonic acid (p-TsOH) and formic acid under different conditions. The optimum conditions of poplar lignin separation were determined by single-factor experiment. The mixed acid lignin (MAL) and...

Author(s) : Wang SongLin; Song ZongJia; He Hui; Wang Qian

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.3186-3199 ref.37

22. Effect of temperature on formaldehyde diffusion in cellulose amorphous region: a simulation study.

A formaldehyde-cellulose amorphous region model at the micro-level was established using the molecular dynamics software Materials Studio to simulate the change of cellulose and formaldehyde molecules in an external temperature field. The diffusion coefficients of formaldehyde molecules increased...

Author(s) : Wang Wei; Cao YanCai; Sun LiYue; Wu MingShuai

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.2 pp.3200-3213 ref.18

23. A two-step process for pre-hydrolysis of hemicellulose in pulp-impregnated effluent with high alkali concentration to improve xylose production.

The viscose fiber production process is accompanied by the accumulation of pulp-impregnated effluent (PIE), including hemicellulose and large amounts of alkali, and discharge of PIE will cause environment pollution. This paper aims to relieve the inhibition of high concentration of alkali on xylose ...

Author(s) : Shi YunFen; Du XinHong; Jin MeiTong; Wu Song; Wang Lei; Qiao Nan; Yu DaYu

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Journal of Hazardous Materials 2021 Vol.402

24. One step liquefaction of hardwood lignin to oligomers soluble in polymerizable solvents.

Today technical lignins produced from different industrial processes are underutilized because they possess recalcitrant C-C bonds and reduced proportion of ether bonds, making it difficult to produce building block compounds in high yields. Current methods being developed to process technical...

Author(s) : Wanmolee, W.; Beltramini, J. N.; Bartley, J.; Laosiripojana, N.; Doherty, W. O. S.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Industrial Crops and Products 2021 Vol.162

25. Isolation and utilization of tobacco-based cellulose nanofiber (TCNF) for high performance reconstructed tobacco sheet (RTS).

Nowadays, wood pulp addition (such as softwood, hardwood, etc.) into manufacture reconstructed tobacco sheet (RTS) via a paper-making process is a feasible and sustainable technology. However, the addition of wood pulp in RTS would weaken the tobacco fragrance of cigarette by bring wood gas when...

Author(s) : Luo BoYa; An XingYe; Yang Jian; Liu LiQin; Zhang Hao; Hu Qin; Zhang RunQing; Nie Shuangxi; Wu ShiJie; Cao HaiBing; Cheng ZhengBai; Liu HongBin

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Carbohydrate Polymers 2021 Vol.261