Your search resulted in 496 documents. Displaying 25 entries per page.
In vitro fungicidal activity of Tunisian essences extracts against Coriolus versicolor and Coniophora puteana
2014 - IRG/WP 14-20544
…molecules and it seems that punicalagin B, and ellagic acid, which are the major phenolic compounds (1.51 % and 6.59 % respectively), may have an important roles in antifungal properties. Chelfi Pomegranate barks can be considered as a potential raw material and its phenolic aqueous extract could be…
L Lajnef, N Ayed, B Charrier
The Effect of Wick Action upon Moisture Distribution in Ellagate Treated Pinus radiata Wood
2006 - IRG/WP 06-40328
Sapwood stakes of Pinus radiata D. Don were treated with water-soluble tetraguanidinium, tetracholine and tetrakis-benzyltrimethylammonium ellagates. The effect of these treatments upon moisture distribution was investigated by wick action. Given that chemic…
S R Przewloka, B J Shearer, J A Hann
Multifactorial analysis of the reasons behind wood natural durability
2025 - IRG/WP 25-11065
…of cellulose, lignin, hemicellulose using nitric acid, sulfuric acid or sodium chlorite, respectively. Py-GC-MS was used to determine lignin/polysaccharides ratio and those of the different lignin monomers like syringyl/guaiacyl ratio. Extractives contents were obtained after Soxhlet extraction with four…
L-F E Nkogo, M S M Mouendou, S Dumarçay, P E Engonga, F Zannini, E Gelhaye, P Gérardin
Distribution of Crystalline Cellulose-Binding Domain CBM104 in Wood Rotting Fungi
2025 - IRG/WP 25-11073
…(cellulose II and IIII) or amorphous cellulose (phosphoric acid swollen cellulose). Further investigation of its binding sites suggested that, unlike CBM1, which interacts with the hydrophobic surface of cellulose, GtAA9-CBM104 preferentially binds to hydrophilic cellulose regions. To determine whether other CBM104…
Y Kojima, N Sunagawa, M Aoki, S Tagawa, M Wada, K Igarashi, M Yoshida
Investigation of oxalic acid production in brown-rot fungi
2025 - IRG/WP 25-11074
…iron, hydrogen peroxide, reducing agent, and oxalic acid are involved in generating hydroxyl radicals that attack the components of wood cell wall. In the present study, oxalic acid production was monitored in the brown-rot fungi Gloeophyllum trabeum, Fomitopsis pinicola and Coniophora puteana. The results…
S Matsumoto, R Tsukida, T Ito, M Iritani, M Yoshida
Functional Analysis of Cellobiose Dehydrogenase from the Saprotrophic Basidiomycete Coprinopsis cinerea
2025 - IRG/WP 25-11076
…of three-dimensional structure prediction using the amino acid sequence.
Y Sakka, A Hosaka, M Yoshida
From Wet to Preserved: Collecting Data of Waterlogged Wood Treated with PEG in Lanyan Museum and Study the Effect of Molecular Weight on Dimensional Stability
2025 - IRG/WP 25-11080
…decay. The pretreatment uses 2% ethylenediaminetetraacetic acid and 10% sodium hydroxide. For freeze-drying treatment, the wood is first immersed in liquid nitrogen, submerged over its surface, placed in a -80 °C refrigerator, and then placed in a freeze-dryer. The submerged wooden artefacts are placed in 30%…
K-L Huang, P-Y Kuo
Citric acid/urea derivatives as an anti-discolouration treatment for wood surfaces
2025 - IRG/WP 25-20741
…biological attack. This article explores the use of citric acid and urea as surface protection of wood. The heating of citric acid and urea can result in the fluorescent carbon dots. These carbon dots can absorb UV light with the emission of the visible light. The carbon dots are the precursor of the insoluble…
C-F Lin, O Myronycheva, D Jones, O Karlsson
Are we barking up the right tree? - the use of bark residues in wood protection
2025 - IRG/WP 25-20742
…the potential of bark residues, particularly suberinic acid, tannins and other polyphenols, in wood protection applications, including coatings, adhesives, and fire retardants. Several European projects have been initiated to develop innovative wood treatment formulations utilising the bark's natural protective…
A Treu, M Altgen, M Sipponen, M Borrega
CIOL Wood - Scientific Innovations in Wood Modification for Enhanced Performance and Usage
2025 - IRG/WP 25-20743
…a biobased formulation based on sorbitol and citric acid, CIOL® enhances wood's chemical structure, improving its durability, stability, and resistance to decay. This paper provides an overview of the advancements made in CIOL® technology, including its improved fire protection properties, enhanced…
E Larnøy, A Treu, M Diraison, M Smith, A Audouin, P T Lewandowski, J Biørnstad
Sustainable and environmentally friendly bio-based protection against fire
2025 - IRG/WP 25-20756
…modified by phosphorylation reaction with polyphosphoric acid. The incorporation of phosphor groups in the lignin structure was confirmed by Fourier transform infrared spectroscopy (FTIR). The effect reaction-to-fire like Heat Release Rate (HRR) was done using a cone calorimeter. The preliminary results suggest…
M Tanase-Opedal, A Larsson, P O Flaete
Chestnut tannin-furfurylic resins for wood preservation: influence of the proportion of tannins as a copolymer
2025 - IRG/WP 25-30816
…The wood modification process employed tartaric acid as a catalyst, involving a vacuum cycle followed by a 24-hour polymerisation step at 120 °C. Properties such as weight percent gain (WPG), leachability (WPL), dimensional stability (ASE), thermal stability, and durability against brown rot (Coniophora…
J V Dorini-Falavinha, C Gerardin-Charbonnier, P Cademartori
Novel treatments of solid wood - studies into the use of imidazole and succinimide
2025 - IRG/WP 25-30817
…aqueous solutions containing imidazole, imidazole + citric acid, succinimide, succinimide + citric acid, and citric acid + sorbitol at 5%, 10%, and 15% solid content was followed by oven-curing at 220 °C for 1 hour. Mass changes during treatment steps, bending properties, and anti-swelling efficiency (ASE) were…
D Jones, A Scharf, H Dernegård, J Oja, S Duarte, J Levanić, M Humar
Furfurylation of wood with white pocket rot caused by Porodaedalea chrysoloma
2025 - IRG/WP 25-30819
…It was performed in two steps: the addition of an acid catalyst (maleic anhydride) and the dehydration–condensation of furfuryl alcohol. Regarding the mass percent gain of the maleic anhydride-modified and furfurylated wood, white pocket rot could enhance the impregnation of the maleic anhydride solution…
Y Mori, Yamashita, Y Ota, M Kiguchi
Unlocking the Potential of Dairy Coproducts in Wood Modification
2025 - IRG/WP 25-30822
The production of dairy coproducts, such as whey (sweet or acid) and whey ultrafiltration permeate, has significantly increased in response to the rising global cheese consumption. Proteins found in by-products are purified for human nutrition. However, upcycling lactose, which is the major compound of cheese…
A Keralta, J Karthäuser, J Winninger, J Chamberland, M-J Dumont, V Landry, H Militz
Modification of Beech Wood by Furfurylation with Chestnut (Castanea sativa) or Acacia (Acacia mearnsii) Tannins for Protection Against Subterranean Termites
2025 - IRG/WP 25-30832
…with solutions containing hydrolysable tannins, FA and an acid catalyst. The impregnated wood blocks were oven-cured, and dried. Water leaching was performed after which Weight Percent Loss and Final Weight Percent Gain was calculated. A modified EN 117 termite test was carried out. The results obtained from the…
J V Dorini-Falavinha, K Candelier, P H Gonzales De Cademartori, C Gérardin-Charbonnier
Optimising properties of citric acid-sorbitol bonded particleboards with added ammonium dihydrogen phosphate as fire retardant
2025 - IRG/WP 25-41033
…with improved fire resistance was produced using citric acid and sorbitol as an adhesive in combination with ammonium dihydrogen phosphate as a fire retardant. Intending to optimise the properties of a laboratory-produced three-layer particleboard, the test procedures focused on thickness swelling, internal bond,…
L Kopač, S Medved, B Lesar, M Humar
Preliminary assessment of imidazole as an adhesion system for particleboards
2025 - IRG/WP 25-41043
…of adhesive mixtures containing imidazole, citric acid, and sorbitol were produced. Softwood sawdust from a Swedish sawmill was mixed with an aqueous solution of the chemicals and then dried to 0% moisture content prior to pressing. The boards were pressed to a target density of 700 kg m−3 at either 200…
A Scharf, H Dernagård, J Oja, G Ormondroyd, S Medved, D Jones
Time-lapse evaluation of Aureobasidium pullulans growth on selected lignin derivatives and chitosan
2024 - IRG/WP 24-11032
…derivatives, namely, vanillin, phenol, 4-hydroxybenzoic acid, and p-coumaric acid. The ability of the fungi to utilise lignin derivatives in poor, synthetic nutrient media and rich malt extract media was determined, and the amount of biofilm produced was quantified. Fungal growth was visualised using a transmitted…
Gubensek, F Poohphajai, A Tosic, K Butina Ogorelek, W Pajerski, A Cernosa, V Hribljan, A Sandak
Laboratory evaluation of PA1b, an insecticidal protein extracted from pea seeds (Pisum sativum), as bait active ingredient against the subterranean termite Coptotermes gestroi (Blattodea: Rhinotermitidae) in tropical zones
2024 - IRG/WP 24-11038
…the efficacy of Pea Albumin subunit 1b (PA1b), a 37 amino acid peptide identified in the seeds of Pisum sativum, was tested against micro-colonies of C.gestroi from La Réunion (France). Six concentrations of PA1b treated filter paper (0,15 to 6 mg of PA1b per gram of paper) were tested in laboratory non-choice…
J Vuillemin, D Messaoudi, P da Silva
Exposure tests on railroad ties treated with DOT
2024 - IRG/WP 24-20705
…tetrahydrate (DOT) to retentions of 0.7 to 1.7% boric acid equivalent (BAE) and selected borate treated ties were subsequently over treated with creosote/diesel fuel mixture. The treated ties were exposed in a simulated railway track test bed in Malaysia. The leaching of borate was measured over 5 years. BAE in…
L Arthur, J-W Kim
Suberinic acid from birch bark and its suitability in wood protection
2024 - IRG/WP 24-20708
…the effect of different concentrations of suberinic acid (SA) on the growth of two fungi species. Initial radial growth tests showed a slightly slower growth rate for brown rot, whereas white rot exhibited faster growth than the untreated reference. In contrast, a commercial wood preservative significantly…
A Treu, M Altgen, J Rizikovs
Effects of phosphoric acid and diammonium phosphate treatments on the physical and fire-retardant properties of five selected Nigerian wood species
2024 - IRG/WP 24-20713
…sources of fuel for fire outbreaks. Effects of phosphoric acid and diammonium phosphate treatments on the physical and fire-retardant properties of wood species commonly used in buildings were evaluated. The timber species utilized in this study were sourced from the sawmill sector located in Akure, Nigeria,…
J Owoyemi, T O Akinwamide, O M Ibrahim, E A Iyiola
Investigation on the use of whey ultrafiltration permeate as a biosourced agent of wood protection
2024 - IRG/WP 24-20718
…special attention. Here, we demonstrate that malic acid and lactose of whey UF permeate can react both in sawdust and solid wood of trembling aspen. The polycondensation reaction in wood significantly reduces its water uptake ability and increases its dimensional stability by over 60%. This could open a new…
A Keralta, J Winninger, J Chamberland, V Landry
Preservative properties of boron-treated paulownia wood
2024 - IRG/WP 24-20729
…retention properties of paulownia wood treated using boric acid/borax at mass ratio of 1:1.8. Different portion of paulownia wood (top, middle, bottom) were used as a sample throughout of this study. In the treatment process, the paulownia wood was dipped in the 1% boric acid/borax solution for 1, 24, 72, 120 and 240…
T Khadiran, M A M Abdullah, S Lipeh