Results 11 to 20 of about 292,470 (358)

Viscoelastic properties of green wood across the grain measured by harmonic tests in the range of 0\degree C to 95\degree C. Hardwood vs. softwood and normal wood vs. reaction wood [PDF]

open access: yesHolzforschung 61 (2007) 548-557, 2009
The viscoelastic properties of wood have been investigated with a dynamic mechanical analyser (DMA) specifically conceived for wooden materials, the WAVET device (environmental vibration analyser for wood).
Dwianto W.   +6 more
core   +2 more sources

Organosolv lignin aggregation behaviour of soluble lignin extract from Miscanthus x giganteus at different ethanol concentrations and its influence on the lignin esterification

open access: yesChemical and Biological Technologies in Agriculture, 2021
Background Lignin is the second most abundant naturally occurring biopolymer from lignocellulosic biomass. While there are several lignin applications, attempts to add value to lignin are hampered by its inherent complex and heterogenous chemical ...
Muhammad Hazwan Hamzah   +2 more
doaj   +1 more source

On the product selectivity in the electrochemical reductive cleavage of lignin model compounds [PDF]

open access: yes, 2021
Research towards the production of renewable chemicals for fuel and energy industries has found lignin valorization as key. With a high carbon content and aromaticity, a fine-tuning of the depolymerization process is required to convert lignin into valuable chemicals.
arxiv   +1 more source

Recent advances in understanding the effects of lignin structural characteristics on enzymatic hydrolysis

open access: yesBiotechnology for Biofuels, 2021
Enzymatic hydrolysis of lignocellulose for bioethanol production shows a great potential to remit the rapid consumption of fossil fuels, given the fact that lignocellulose feedstocks are abundant, cost-efficient, and renewable.
Yufeng Yuan   +6 more
doaj   +1 more source

Analysis of lignin–carbohydrate and lignin–lignin linkages after hydrolase treatment of xylan–lignin, glucomannan–lignin and glucan–lignin complexes from spruce wood [PDF]

open access: yesPlanta, 2014
Xylan-lignin (XL), glucomannan-lignin (GML) and glucan-lignin (GL) complexes were isolated from spruce wood, hydrolyzed with xylanase or endoglucanase/β-glucosidase, and analyzed by analytical pyrolysis and 2D-NMR. The enzymatic hydrolysis removed most of the polysaccharide moieties in the complexes, and the lignin content and relative abundance of ...
Du, Xueyu   +8 more
openaire   +4 more sources

Lignin and Lignin-Derived Compounds for Wood Applications—A Review [PDF]

open access: yesMolecules, 2021
Improving the environmental performance of resins in wood treatment by using renewable chemicals has been a topic of interest for a long time. At the same time, lignin, the second most abundant biomass on earth, is produced in large scale as a side product and mainly used energetically.
Johannes Karthäuser   +3 more
openaire   +4 more sources

Valorization of biodigestor plant waste in electrodes for supercapacitors and microbial fuel cells [PDF]

open access: yes, 2021
This study aims at demonstrating that wastes from anaerobic biodigester plants can be effectively valorized as functional materials to be implemented in technologies that enable efficient energy management and water treatment, therefore simultaneously addressing the Water-Energy-Waste Nexus challenges.
arxiv   +1 more source

A Comparative Assessment of Sea Buckthorn (Hippophae rhamnoides L.) Pruning Waste as a Potential Source of Serotonin

open access: yesBioResources, 2023
Sea buckthorn (Hippophae rhamnoides L.) twigs, remaining after harvesting and pruning, are an underutilized and little-explored biomass resource.
Sarmite Janceva   +6 more
doaj   +2 more sources

Isolation of high quality lignin as a by-product from ammonia percolation pretreatment of poplar wood [PDF]

open access: yes, 2014
A two-step process combining percolation-mode ammonia pretreatment of poplar sawdust with mild organosolv purification of the extracted lignin produced high quality, high purity lignin in up to 31% yield and 50% recovery.
Bouxin, Florent P.   +2 more
core   +1 more source

Photon Walk in Transparent Wood: Scattering and Absorption in Hierarchically Structured Materials [PDF]

open access: yesAdv. Opt. Mater. 10, 2102732 (2022), 2021
The optical response of hierarchical materials is convoluted, which hinders their direct study and property control. Transparent wood (TW) is an emerging biocomposite in this category, which adds optical function to the structural properties of wood. Nano- and microscale inhomogeneities in composition, structure and at interfaces strongly affect light ...
arxiv   +1 more source

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