Degradation of the main components of cellulose-paint thinner by the mouldScopulariopsis brevicauliscultured on rice hulls


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Abstract

Aims:Biodegradation of the main components of the cellulose-paint thinner (toluene, acetone, isopropanol and xylenes) by Scopulariopsis brevicaulis, isolated from a thinner biodegradation microbial consortium was investigated.Methods and Results:Our results showed that 90% of S. brevicaulis conidia survived after 4 weeks in a cellulose-paint thinner saturated atmosphere. The mould was able to grow under these environmental conditions with a low development of conidia. The biodegradation potential of S. brevicaulis was established with and without support material (rice hulls). Biodegradation without support was very limited, < 10% for all the components quantified. There was notable thinner biodegradation when the fungus was grown on rice hulls.Conclusions:Our results suggest the potential use of fungi in biofiltration systems employed in biodegradation of the main components of the cellulose-paint thinner.Sigificance and Impact of the Study:This is the first report of volatile organic compounds biodegradation by this fungal species.

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