Detection of outdoor mould staining as biofinish on oil treated wood

Nieuwenhuijzen, Elke J. van; Sailer, Michael; Gobakken, Lone Ross; Adan, O.C.G.; Punt, Peter J.; Samson, Robert A.

doi:10.1016/j.ibiod.2015.09.001

Cited by 18 publications

(41 citation statements)

References 57 publications

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“…Outdoor experiments showed an inhibitory effect of cross‐linked linseed oil on biofilm formation (Van Nieuwenhuijzen et al., ). In our study, no visible growth on severe cross‐linked linseed oil was observed, and also, neither metabolic activity nor degradation of the oil was detected.…”

Section: Discussionmentioning

confidence: 99%

“…To generate understanding of the growth mechanisms of the biofilm on oil‐impregnated wood, growth of A. melanogenum on different oil types was studied. In outdoor experiments on oil‐impregnated wood, the main observation regarding the influence of oil type on biofilm formation was that linseed oil led to biofilm formation only in combination with pine sapwood and olive oil stimulated biofilm formation regardless of the wood type (Van Nieuwenhuijzen et al., ). In contrast to this, our experiments do not show differences in metabolic activity and oil conversion of olive and linseed oil.…”

Section: Discussionmentioning

confidence: 99%

“…The exact influence of oil type on biofilm formation is not clear. The molecular mobility of the oil seems to influence the availability of food for the fungus, as seen for stand oil, where no biofilm formation was observed (Van Nieuwenhuijzen et al., ). An important property of oil, which effects both nutritive value and physical properties like mobility, is the fatty acid composition.…”

Section: Introductionmentioning

confidence: 99%

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Oil type and cross‐linking influence growth of Aureobasidium melanogenum on vegetable oils as a single carbon source

et al. 2018

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Aureobasidium melanogenum is the main fungus found in a spontaneously formed biofilm on a oil-treated wood. This dark colored biofilm functions as a protective coating. To better understand biofilm formation, in this study A. melanogenum was cultured on olive oil and raw linseed oil. Metabolic activity and oil conversion were measured. The results show that A. melanogenum is able to grow on linseed oil and olive oil as a single carbon source. The fungus produces the enzyme lipase to convert the oil into fatty acids and glycerol. Metabolic activity and oil conversion were equal on linseed oil and olive oil. The fungus was not able to grow on severe cross-linked linseed oil, meaning that the degree of cross-linking of the oil is important for growth of A. melanogenum. Dark coloring of the colony was seen on linseed oil, which might be a stress response on the presence of autoxidation products in linseed oil. The colony on olive oil showed delayed melanin production indicating an inhibitory effect of olive oil on melanin production.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oil type and cross‐linking influence growth of Aureobasidium melanogenum on vegetable oils as a single carbon source

et al. 2018

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“…Dark staining of untreated wood is common, but also of coated and/or modified wood (De Windt, Bulcke, Wuijtens, Coppens, & Acker, ; Gobakken & Westin, ; Gobakken, Bardage, & Long, ; Metsä‐Kortelainen, Paajanen, & Viitanen, ). The use of raw linseed oil and olive oil as a wood impregnating agent has been identified to stimulate the amount of dark stains on the wood surface (Van Nieuwenhuijzen et al, ; Van Nieuwenhuijzen, Gobakken, Sailer, Samson, & Adan, ). Remarkably, some wood species impregnated with these oils have shown to form a beneficial homogenous kind of fungal‐based staining called biofinish (Sailer, Nieuwenhuijzen, & Knol, ; Van Nieuwenhuijzen et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…The use of raw linseed oil and olive oil as a wood impregnating agent has been identified to stimulate the amount of dark stains on the wood surface (Van Nieuwenhuijzen et al, ; Van Nieuwenhuijzen, Gobakken, Sailer, Samson, & Adan, ). Remarkably, some wood species impregnated with these oils have shown to form a beneficial homogenous kind of fungal‐based staining called biofinish (Sailer, Nieuwenhuijzen, & Knol, ; Van Nieuwenhuijzen et al, ). However, after outdoor exposure of wood samples impregnated with stand linseed oil and untreated wood, none of the stained wood surfaces could meet the degree of surface coverage and pigmentation criteria of a biofinish.…”

Section: Introductionmentioning

confidence: 99%

Vegetable oils as carbon and energy source for Aureobasidium melanogenum in batch cultivation

et al. 2018

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Dark homogenous fungal‐based layers called biofinishes and vegetable oils are key ingredients of an innovative wood protecting system. The aim of this study was to determine which of the vegetable oils that have been used to generate biofinishes on wood will provide carbon and energy for the biofinish‐inhabiting fungus Aureobasidium melanogenum , and to determine the effect of the oil type and the amount of oil on the cell yield. Aureobasidium melanogenum was cultivated in shake flasks with different types and amounts of carbon‐based nutrients. Oil‐related total cell and colony‐forming unit growth were demonstrated in suspensions with initially 1% raw linseed, stand linseed, and olive oil. Oil‐related cell growth was also demonstrated with raw linseed oil, using an initial amount of 0.02% and an oil addition during cultivation. Nile red staining showed the accumulation of fatty acids inside cells grown in the presence of oil. In conclusion, each tested vegetable oil was used as carbon and energy source by A. melanogenum . The results indicated that stand linseed oil provides less carbon and energy than olive and raw linseed oil. This research is a fundamental step in unraveling the effects of vegetable oils on biofinish formation.

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Remediation of Fouling on Painted Steel Roofing via Solar Energy Assisted Photocatalytic Self‐Cleaning Technology: Recent Developments and Future Perspectives

Fernando¹,

Ray²,

Simpson³

et al. 2022

Adv Eng Mater

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Rainwater harvesting on rooves is a sustainable solution for global water scarcity. The contamination of roofing materials due to biological organisms and other environmental pollutants limits the utilization of roof harvested rainwater for domestic and industrial applications. Similarly, roof contamination leads to several aesthetic, functional, and environmental concerns highlighting the importance of developing green self-cleaning technology for roofing applications. Solar-energy-driven semiconductor-based photocatalytic self-cleaning coatings are a promising approach to minimizing roof contamination against both biological and non-biological pollutants. However, the development of such technology on painted steel substrates for long-term outdoor applications has become limited due to the number of challenges are analyzed in this review. Accordingly, challenges, recent developments, and future perspectives of developing and evaluating the performance of photocatalytic self-cleaning coating systems for roofing applications have been critically reviewed in this article analyzing the research findings of recent studies.

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Detection of outdoor mould staining as biofinish on oil treated wood

Cited by 18 publications

References 57 publications

Oil type and cross‐linking influence growth of Aureobasidium melanogenum on vegetable oils as a single carbon source

Oil type and cross‐linking influence growth of Aureobasidium melanogenum on vegetable oils as a single carbon source

Vegetable oils as carbon and energy source for Aureobasidium melanogenum in batch cultivation

Remediation of Fouling on Painted Steel Roofing via Solar Energy Assisted Photocatalytic Self‐Cleaning Technology: Recent Developments and Future Perspectives

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