Your search resulted in 300 documents. Displaying 25 entries per page.
Exploring the use of X-ray micro CT as a tool for the monitoring of moisture production and mass loss during lab-based fungal degradation testing
2019 - IRG/WP 19-20654
…the results: we assessed that moisture uptake from the agar medium and moisture production by the fungus increase the average density profile, while water evaporation and mass loss due to degradation decrease it. The main challenge seems to be to untangle these factors. We therefore additionally analysed the…
L De Ligne, J Van den Bulcke, A De Muynck, J M Baetens, B De Baets, L Van Hoorebeke, J Van Acker
Effect of media composition on the antagonistic properties of Trichoderma spp. against wood decay fung
1992 - IRG/WP 92-1538
…fungi has previously been undertaken using artificial media. Similarly experiments designed to evaluate the mechanisms involved in antagonism between biological control agents and target fungi, have largely been carried out in conditions which do not accurately reflect the nutrient status of wood. This paper…
U Srinivasan, A Bruce, H J Staines
Attempts to isolate tunnelling bacteria through physical separation from other bacteria by the use of cellophane
1992 - IRG/WP 92-1535
…within the cellophane failed, however, to grow on various agar or liquid media. The reasons for this are discussed.
T Nilsson, G F Daniel
Liquefied wood polyols: Ecofriendly bio-based preservative for sustainable protection of wood from Termite attack
2018 - IRG/WP 18-10916
…based industry has been liquefied in different liquefying media in defined reaction condition to produce chemically active liquid which is being as wood preservatives for protection of wood from termite. The level of impregnation of preservative in wood was estimated by determining the weight percent gain and the…
A Kumar, A John, T S Mehra, A K Pandey, S Singh Chauhan
The Impact of Cryopreservation Techniques and of Water Quality on the Wood Degrading Ability of Fungal Strains: Recommendations for Maintenance and Culturing Procedures
2018 - IRG/WP 18-20636
…of water used for the preparation of the culturing malt agar medium on the mycelium growth and on the virulence of fungal strains was assessed.
The vitality of all fungi was successfully preserved with cryopreservation at -80 °C during six months in sterile water with 25% or 50% of glycerol used as…
A Stum, M Montibus, I le Bayon, M Kutnik
Rapid Screening test of potential antimicrobial agents for wood coatings
2018 - RG/WP 18-20644
…properties against selected test organisms, directly on agar plates. A microbial growth analysis is prepared and evaluated. If the additive is considered effective, it will be tested in a standard top coating (acrylic or alkyd) and applied onto wooden panels for exposure in a growth chamber developed for this…
J Stenbæk, E Morsing, T Østergaard Jensen
Liquefied wood polyols: a bio-based preservative for protection of wood from fungal decay
2018 - IRG/WP 18-30725
…in phenol, glycerol and polyethylene glycol as liquefying media under defined reaction condition to produce chemically active liquid. These liquefied woods were used as preservatives and its efficacy were evaluated after impregnation of wood against fungi. The level of impregnation of preservative in wood was…
A Kumar, G Vijaylakshmi, S Singh Chauhan
Mechanism of nano metal fluorides against fungi
2018 - IRG/WP 18-30730
…Rhodonia placenta, and Trametes versicolor with an agar-test developed by Pantano et al. (2018). The anti-fungal activity was determined by the size of the colony diameter. The difference in the size of the diameter of the colony show if the fluoride nanoparticles show similar effectiveness towards both…
S M Usmani, K Klutzny, I Stephan, T Hübert, E Kemnitz
Suppression of aerial hypha formation by spent culture filtrate of a non-degradative strain of Postia placenta
1991 - IRG/WP 1498
…decay tests and fails to form aerial hyphae in liquid and agar culture. This abnormal morphological feature may be caused by the same aberrant physiology that prevents the strain from degrading wood efficiently. ME20 releases elevated levels of the autolytic enzymes laminarinase and protease into culture media.…
J A Micales
Laboratory test to determine the effect on durability of combining biobased building materials with timber in construction
2017 - IRG/WP 17-20604
…existing wood decay testing methods. The test utilises an agar jar approach with a pad of fibrous insulation e.g. wool or hemp placed between the inoculated agar and a wood block.
Results show the effects of the type of insulation used on the moisture content and decay of the test blocks. It is shown that moisture…
S F Curling, G A Ormondroyd
Liquefaction of woody waste: A novel approach in wood protection from CNSL based liquefied wood polyols
2017 - IRG/WP 17-30711
…by using cashew nut shell liquor (CNSL) as liquefying media at 140oC for 120 minutes at various wood : CNSL ratio as 1:3, 1:4 and 1:5 using mild acid as catalyst at different reaction conditions. In all the cases, a viscous and sticky black liquid was obtained which was used for protection of wood against of…
A Kumar, G B.Nagarajappa, S Singh Chauhan
Effects of heat treatment on sound absorption coefficients in nanosilver-impregnated and normal solid woods
2017 - IRG/WP 17-40770
Effects of impregnation with silver nano-suspension as well as heat-treatment on sound absorption coefficients (AC) were studied in tangential direction of five different solid woods based on their importance. AC was measured at two frequencies of 250 and 500…
A Esmailpour, J Norton, H R Taghiyari, H Zolfaghari, S Asadi
Decay resistance variability of European wood species thermally modified by industrial process
2017 - IRG/WP 17-40807
…untreated beech and pine woods as reference materials. An agar block test was used to determine the resistance of thermally modified woods, leached beforehand according to EN 84 standard or not, to brown-rot and white-rot fungi, according to XP CEN/TS 15083-1. A large selection of treated wood samples was tested in…
K Candelier, L Pignolet, S Lotte, A Guyot, E Cuny, B Bousseau, M-F Thévenon
Anti-Fungal Activity on Some Wood extracts as a Wood Protectant
2016 - IRG/WP 16-30684
…where obtained bark extracts were blended with potato-agar in order to investigate their antifungal properties. To determine the inhibition effectiveness of extractives, two different fungi; Coniophera puteana and Trametes versicolor were selected. Fungal activity was carefully observed for the duration of seven…
Ö Özgenç, S Durmaz
Resistance of heat treated Ash wood under steam pressure: rot fungi, soil micro-organisms and termites
2016 - IRG/WP 16-40724
…Ash, Beech and Pine woods, for each biological test. An agar block test was used to determine the resistance to two brown-rot and two white-rot fungus according to CEN/TS 15083-1 (2005) directives. Durability against soil-inhabiting micro-organisms was determined relating to the CEN/TS 15083-2 (2005) directives,…
K Candelier, S Hannouz, M-F Thévenon, D Guibal, P Gérardin, M Pétrissans, R Collet
Molecular studies on isolates of Serpula lacrymans
1989 - IRG/WP 1421
…when individual isolates were cultured on different media, i.e. liquid culture or agar, only minor differences were seen when individual isolates were subcultured. These results indicate that whilst care must be taken to ensure as near identical conditions as possible for culture of organisms if their…
A Vigrow, D Button, J W Palfreyman, B King, B M Hegarty
Investigation of Dimensional Stability and Coating Performance of Different Heat-Treated Poplar Wood Before and After Accelerated Aging
2015 - IRG/WP 15-40702
…treatments were performed in air, steam and linseed oil media. Specimens were coated by alkyd based stain. Adhesion strength before and after aging, long term water absorption and volumetric swelling were studied and analyzed statistically. The results showed that heat treatment increases the adhesion strength…
A Talaei, D Ansari Movahed, G Rassam
Proposals for further co-operative studies on determining toxic values against wood-destroying basidiomycetes (1988)
1988 - IRG/WP 2316
…additional tests may be carried out using a range of other media (agar, vermiculite, rockwool) additional fungi of choice, additional preservatives of choice and pre-conditioning by leaching or evaporative ageing. Participants are required to return a completed copy of the form included as Appendix IV to Dr A F…
A F Bravery, J K Carey
Fruitbody formation and basidiosporogenesis by the white rot fungus Pycnoporus cinnabarinus
1988 - IRG/WP 1348
…to previously tested brown rot fungi was revealed. Agar media containing Walseth cellulose and NH4 tartrate at 1 g/l permit profound production of basidiospores particularly at 15°C but only under light treatment. Higher NH4 tartrate concentrations and glucose addition slowed down or inhibited the fruitbody…
J Bjurman
A screening of factors that might influence the result of laboratory decay tests
2014 - IRG/WP 14-20548
…using P. sylvestris as wood substrate. The data from the agar/malt test showed that the choice of malt was of great importance for the virulence of the test fungus. However, no significant differences in mass loss were detected for two of the fungi; C. puteana and G. trabeum. From these results it can be concluded…
E Larnøy, G Alfredsen, A Treu, S Kolstad
Surface moulds and staining fungi on acetylated wood – effect of increasing acetyl content
2013 - IRG/WP 13-10797
…Yellow pine at three different treatment levels; low, intermediate and high acetyl content were exposed outdoors at Ås (Norway) for a period of 9 months. Corresponding samples from the same material where tested according to a modified version of EN 15457 (agar plate test) using A.pullulans as test fungi. In the…
L Ross Gobakken, S Bardage, C J Long II
A case study of investigating fungi that affect traditional Japanese shake roof with/without copper plates
2013 - IRG/WP 13-10810
…were identified using a cultivation method on malt extract agar (MA) medium and a non-cultural method, the next generation sequencing method. Fungal strains were isolated on MA plates from ethanol-sterilized wooden pieces and non-sterilized pieces respectively, to see fungal species rich on the surface and inside the…
T Wada, Y Fujiwara, Y Fujii, R Kigawa
Characterization of test fields
2013 - IRG/WP 13-20508
…fungi from EN 252 Scots pine stakes by using different media and identified the isolated fungi by DNA sequencing. DNA profiles were established for Scots pine mini- stakes as well as microscopy characterization of stake cross sections for decay type and degree of attack. MOE and mass loss was measured for the…
U Råberg, N Terziev, G Daniel
Antifungal properties and bonding of menthoxymethylimidazolium ionic liquids with Scots pine wood
2013 - IRG/WP 13-30627
…(Sclerophoma pithyophila) were determined using screening agar-plate method. Results from antifungal tests revealed that 1-butyl-3- menthoxymethylimidazolium chloride exhibited the strongest antifungal activity against wood decay fungi (Basidomycotina) compared with the commercial DDAC. Whereas compound with nine…
J Zabielska-Matejuk, J Feder-Kubis, A Stangierska
Bio-based thermoset resins for bonding and eco-friendly preservation in the wood industry
2013 - IRG/WP 13-40650
…Several formulations were carried out in alkaline aqueous media by varying the weight fraction of two compounds from 10% to 30%. The cross-linking was performed using epichlorohydrin as a reticulant agent. Rheological behaviours and initial adhesion of three liquid formulations, before reticulation, were carried out…
C Motillon, A Allal, A Visse, F Charrier, B Charrier, A Baldé