Plant essential oils for environment-friendly protection of wood objects against fungi

Bahmani, Mohsen; Schmidt, Olaf

doi:10.4067/s0718-221x2018005003301

Cited by 37 publications

(41 citation statements)

References 13 publications

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“…For example, the chemical mode of action is efficient if the moisture of wood is kept relatively low. Furthermore, many antioxidant compounds of natural origin are relatively volatile, needing auxiliary methods of permanent fixation (i.e., physical, by pores and voids filling) [ 83 ].…”

Section: Antifungal Wood Preservationmentioning

confidence: 99%

Ionic Liquids as Antifungal Agents for Wood Preservation

Croitoru

Roată

2020

Molecules

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Ionic liquids represent a class of highly versatile organic compounds used extensively in the last decade for lignocellulose biomass fractionation and dissolution, as well as property modifiers for wood materials. This review is dedicated to the use of ionic liquids as antifungal agents for wood preservation. Wood preservation against fungal attack represents a relatively new domain of application for ionic liquids, emerging in the late 1990s. Comparing to other application domains of ionic liquids, this particular one has been relatively little researched. Ionic liquids may be promising as wood preservatives due to their ability to swell wood, which translates into better penetration ability and fixation into the bulk of the wood material than other conventional antifungal agents, avoiding leaching over time. The antifungal character of ionic liquids depends on the nature of their alkyl-substituted cation, on the size and position of their substituents, and of their anion. It pertains to a large variety of wood-colonizing fungi, both Basidiomycetes and Fungiimperfecti.

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Section: Antifungal Wood Preservationmentioning

confidence: 99%

Ionic Liquids as Antifungal Agents for Wood Preservation

Croitoru

Roată

2020

Molecules

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“…Environment Protection Agency (EPA) has no signifi cant incident reports involving thymol (De Medeiros et al, 2016). In another study, 16 plant essential oils were applied to Fagus orientalis and Pinus taeda wood samples by vacuum impregnation method (Bahmani and Schmidt, 2018). The treated samples were then infected with different kinds of rot-Kurdistan province, western Iran.…”

Section: Do 20 %) Provedena Je I Impregnacija Uzorka Kombinacijom Prmentioning

confidence: 99%

Effect of Natural Resin from Wild Pistachio Trees on Physical Properties and Durability of Beech Wood

2020

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This study was carried out to investigate the physical properties and decay resistance of beech wood treated with natural pistachio resin (PR) from Iranian wild pistachio trees (Pistacia atlantica), alone and in combination with boric acid (BA). Wood samples were impregnated with different concentration of PR dissolved in ethanol (3 to 20 %) with vacuum-pressure technology. The combination of PR (20 %) and BA (2 %) was also conducted to evaluate any interaction or synergistic effects. The water absorption, volumetric swelling, and decay resistance against Trametes versicolor fungi, before and after a leaching test (EN 84), were measured on treated and untreated samples. The chemical compositions of PR were also identified by gas chromatography–mass spectrometry (GC-MS) techniques. The chemicals analysis identified more than 20 different compounds in the PR, monoterpenoids being the predominant fraction and α-pinene the major component. The samples treated with a higher concentration of PR showed much higher weight gain percentage (WG%). The results showed that the increase in WG% reduced the average values of water absorption and volumetric swelling of treated samples even after long terms of soaking in water. The decay resistance of the treated samples increased against white rotting fungi as the values of WG% increased. Efficient protection was seen when a combined treatment of PR and BA was used. Even after the leaching process, the weight loss of the treated samples was less than 3 percent. The samples treated with BA alone largely lost their effectiveness against fungal attack after the leaching. The use of PR along with an environmental friendly co-biocide can also be recommended for wood preservation in places that require minimal toxicity.

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“…Essential oils from various plants as biocides in wood treatment are widely investigated worldwide. Thyme, oregano, clove, sweet flag, lemon grass and lavender oils were the most effective oils for wood protection against both mold and decay fungi [1][2][3]. Moreover, the constituents of essential oils were tested as bioactive compounds in wood protection.…”

Section: Introductionmentioning

confidence: 99%

The Possibility of Propolis Extract Application in Wood Protection

Woźniak

Kwaśniewska-Sip

Waśkiewicz

et al. 2020

Forests

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Nowadays, there is a growing interest in extending the service life of wood and wood products by applying natural substances that are harmless to humans and the environment. In this paper, propolis was used as an eco-friendly wood preservative. The aim of this study was to determine the resistance of Scots pine wood treated with the propolis extract against brown-rot fungus Coniophora puteana. The wood biodegradation was assessed by gravimetric method, as well as by the analysis of ergosterol concentration in decayed wood and by the determination of changes in the wood structure by means of Fourier transform infrared spectroscopy. The results indicated that the impregnation of wood with propolis extract above 12% concentration limited fungal decay. The mass loss of wood treated with 18.9% propolis extract was 2.3% and was over 21 times lower than that for untreated wood. The analysis of ergosterol content and the changes in wood structure also confirmed that the propolis extract above 12% concentration protected wood against decay caused by C. puteana. Moreover, the propolis extract used in wood impregnation was rich in phenolic compounds, mainly chrysin, pinocembrin and galangin, which possess antimicrobial activity. The obtained results indicate that the extract of Polish propolis can be a promising natural wood preservative, safe for humans and the natural environment.

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Plant essential oils for environment-friendly protection of wood objects against fungi

Cited by 37 publications

References 13 publications

Ionic Liquids as Antifungal Agents for Wood Preservation

Ionic Liquids as Antifungal Agents for Wood Preservation

Effect of Natural Resin from Wild Pistachio Trees on Physical Properties and Durability of Beech Wood

The Possibility of Propolis Extract Application in Wood Protection

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