aalto1 untyped-item.component.html
Old dry mold growth seems to emit less bioactive metabolites and surfactants than actively growing microbes
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A3 Kirjan tai muun kokoomateoksen osa
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
SIY raportti ; 37
Abstract
We characterized the toxicity and surfactant properties of old and fresh biomasses of indoor isolates of Trichoderma atroviride,Aspergillus versicolor, Chaetomium sp., Stachybotrys sp. and Rhizopus sp. Toxicity of cell dispersals fromold dry biomasses (> 12 months old) and actively growing molds(< 3 weeks old) was tested as inhibition of proliferation with somatic mammalian cell lines(PK-15 and MNA).Fresh biomasses were up to 100 times more toxic than old dry biomasses. When calculated per conidial particle,100 times more toxicity was associated with the fresh conidia than the old ones.Surfactant activity was detected both in biomass dispersals and exudates. We hypotized that the metabolic state of the fungal growth may influence fungal metabolite emission into indoor air. This information may be important when mouldy buildings are renovated.
Description
Keywords
Other note
Citation
Andersson, M A, Marik, T, Kredics, L, Salonen, H & Kurnitski, J 2019, Old dry mold growth seems to emit less bioactive metabolites and surfactants than actively growing microbes. in M Ahola & A Merikari (eds), Sisäilmastoseminaari 2019. SIY raportti, no. 37, SIY Sisäilmatieto Oy, pp. 215-220, Sisäilmastoseminaari, Helsinki, Finland, 14/03/2019.