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In vitro biodegradation potential of airborne Aspergilli and Penicillia

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2019
Authors
Savković, Zeljko
Stupar, Milos
Unković, Nikola
Ivanović, Žarko
Blagojević, Jovana
Vukojević, Jelena
Ljaljević-Grbić, Milica
Article (Published version)
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Abstract
The study addresses in vitro degradation potential of airborne Aspergillus and Penicillium/Talarmyces species originating from cultural heritage conservation premises. A series of rapid, cost effective biodegradation assays were performed to assess production of extracellular pigments, acids, and enzymes. Most of the isolates have demonstrated positive growth in at least one of the preformed tests. Strongest overall degradation potential was demonstrated for Penicillium brevicompactum, P. glabrum, and Talaromyces sayulitensis while Aspergillus domesticus, A. penicillioides, A. pseudoglaucus, and A. ruber did not exhibit positive reaction in any of the employed assays. Majority of isolates exhibited proteolytic and cellulolytic activity while carbonate dissolution was observed for only five tested fungi. Highest alteration of pH value in liquid media was documented for T. sayulitensis while A. niger and P. expansum exhibited strongest acid production on CREA. Certain isolates, mostly Pe...nicillium species, displayed production of extracellular pigments. The results imply that many of the tested fungi have significant biodegradation capacity, indicating their potential to inflict structural and esthetic alterations on cultural heritage objects.

Keywords:
Acidic metabolites / Aspergillus / Biodegradation / Enzyme production / Extracellular pigments / Penicillium
Source:
Science of Nature, 2019, 106, 3-4
Publisher:
  • Springer Heidelberg, Heidelberg
Projects:
  • Characterization and application of fungal metabolites and assessment of new biofungicides potential (RS-173032)

DOI: 10.1007/s00114-019-1603-3

ISSN: 0028-1042

PubMed: 30734872

WoS: 000458197500001

Scopus: 2-s2.0-85061204105
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URI
http://plantarum.izbis.bg.ac.rs/handle/123456789/568
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