Results 11 to 20 of about 7,548 (224)

Anisotropic Transparency of Alkali‐Treated Wood

open access: yesMacromolecular Materials and Engineering
This study elucidates the mechanism by which alkali treatment enhances the transparency of delignified wood, with a focus on the cellulose microfibril skeleton. Following delignification, the resulting material remains translucent due to light scattering
Hitomi Yagyu   +6 more
doaj   +2 more sources

Genomics Review of Holocellulose Deconstruction by Aspergilli [PDF]

open access: yesMicrobiology and Molecular Biology Reviews, 2014
SUMMARY Biomass is constructed of dense recalcitrant polymeric materials: proteins, lignin, and holocellulose, a fraction constituting fibrous cellulose wrapped in hemicellulose-pectin. Bacteria and fungi are abundant in soil and forest floors, actively recycling biomass mainly by extracting sugars from holocellulose degradation.
Fernando, Segato   +4 more
openaire   +2 more sources

The Chemical Characterisation of the Maritime Pine Bark Cultivated in Northern Portugal

open access: yesPlants, 2023
Maritime pine, scientifically known as Pinus pinaster, holds a vital role in Iberian Peninsula forests, primarily as a source of wood for panels, paper, and cellulose production.
Diana Barros   +6 more
doaj   +1 more source

Analysis of Chemical Properties of Thermally Treated Pinus roxburghii Sargent Wood

open access: yesBioResources, 2023
Effects of thermal modification were determined relative to chemical parameters of Pinus roxburghii. Thermal modification of wood was carried out at 80, 120, 160, and 200 °C for 2, 4, and 6 h.
Aman Gupta   +2 more
doaj   +2 more sources

Composition of Organic Carbon-Based Compounds in the Stem Wood of Quercus mongolica Seedlings Grown Under Elevated CO2 and/or O3 Concentrations

open access: yesFrontiers in Forests and Global Change, 2021
In this study, we examined the composition of organic constituents of stem woody tissue together with tree growth in Quercus mongolica var. grosseserrata Blume seedlings raised under controlled CO2 and/or O3 concentrations in a Free-Air Concentration ...
Shin Ugawa   +4 more
doaj   +1 more source

Effect of Four Novel Bio-Based DES (Deep Eutectic Solvents) on Hardwood Fractionation

open access: yesMolecules, 2020
Using the basic principle of construction between a hydrogen bond acceptor (HBA) and a hydrogen bond donor (HBD), four bio-based deep eutectic solvents (DESs) were prepared in a 1:2 molar ratio of HBA:HBD. 2,3-Dihydroxypropyl-1-triethylammonium chloride (
Paulo Torres   +3 more
doaj   +1 more source

Beech wood treated with polyglycerol succinate: a new effective method for its protection and stabilization [PDF]

open access: yes, 2020
This paper deals with an original and non-biocidal chemical treatment consisting of a vacuum/pressure impregnation step of beech wood with a water-borne mixture made from heat-activated condensation of succinic anhydride (SA) and glycerol (G).
Fredon, Emmanuel   +4 more
core   +1 more source

Seasonal change in the daily timing of behaviour of the common vole, Microtus arvalis [PDF]

open access: yes, 1984
1. Seasonal effects on daily activity patterns in the common vole were established by periodic trapping in the field and continuous year round recording of running wheel and freeding activity in cages exposed to natural meteorological conditions.
AD Rijnsdorp   +36 more
core   +6 more sources

The New Zealand Kauri (Agathis Australis) Research Project: A Radiocarbon Dating Intercomparison of Younger Dryas Wood and Implications for IntCal13 [PDF]

open access: yes, 2013
We describe here the New Zealand kauri (Agathis australis) Younger Dryas (YD) research project, which aims to undertake Δ14C analysis of ~140 decadal floating wood samples spanning the time interval ~13.1–11.7 kyr cal BP.
Boswijk, Gretel   +14 more
core   +2 more sources

Conversion of Carbohydrates in Lignocellulosic Biomass after Chemical Pretreatment

open access: yesEnergies, 2021
The aim of the study was to determine the quantitative and qualitative changes taking place in biomass components actively participating in methane fermentation, i.e., in carbohydrates, as a result of chemical pretreatment.
Magdalena Zborowska   +5 more
doaj   +1 more source

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