Viability of yeasts after exposure to flax-fiber based composite materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00369938" target="_blank" >RIV/68407700:21110/23:00369938 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1742-6596/2628/1/012010" target="_blank" >https://doi.org/10.1088/1742-6596/2628/1/012010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/2628/1/012010" target="_blank" >10.1088/1742-6596/2628/1/012010</a>

Result language
angličtina
Original language name
Viability of yeasts after exposure to flax-fiber based composite materials
Original language description
In the present study, the prepared bio-composite materials based on flax fibers containing caffeine or nano-copper (Cu) or corundum (Al2O3) as a potential biocidal substancewere prepared and tested on their toxicity. Two viability tests were performed. Firstly, thescreening test based on colouring by Methyl-blue was applied on yeast cells of strainSaccharomyces cerevisae. The number of cells density was observed under microscope andMethyl-blue was then added. Part of the cells coloured in blue and it indicated their death. Forthis reason, MTT viability assay was performed. The method is based on production of blueproduct formazan by yeasts after their metabolization of added initial substrate, 3-[4,5-dimethylthiazol-2-yl]-2,5-difenyltetrazolium bromide. The intensity of blue-coloured formazan was measured spectrophotometrically at 485 nm. The results indicated that the inhibition ofyeasts was increased in the following rate: cu-samples (14-16 %) < flax sample without biocidal substances (21%) = pure flax (23 %) < caffeine-samples (up to 29 %) < corundum-samples (up to 35%).
Czech name
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Czech description
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Project
<a href="/en/project/FW03010422" target="_blank" >FW03010422: Measures for REducing MIcrobial CONtamination of the indoor environments of low-energy and passive residential buildings</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Journal of Physics: Conference Series 2628 (2023)
ISBN
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ISSN
1742-6588
e-ISSN
1742-6596
Number of pages
6
Pages from-to
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Publisher name
IOP Publishing Ltd.
Place of publication
Bristol
Event location
Poprad
Event date
Sep 6, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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