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- Title
DEVELOPMENT OF A QUANTITATIVE METHOD FOR TESTING THE ANTIFUNGAL EFFECT OF FACADE PAINTS WITH BIOCIDES.
- Authors
VIDAKOVIĆ, Ana; MARKOV, Siniša; BERA, Oskar; RUDIĆ, Ognjen; VUČETIĆ, Snežana; VELIĆANSKI, Aleksandra; RANOGAJEC, Jonjaua
- Abstract
Biocides are commonly added to facade paints in order to control the growth of algae and fungi, which are usually present on external surfaces of buildings. The antifungal efficiency of biocides are usually determined by producer companies, but those methods are qualitative or semi-quantitative. The aim of this paper is to examine and quantify the antifungal effect of two different biocides and one in-can preservative, usually added to facade paints, as well as the impact of different water quality used during the production of the paints. The conventionelly used fungal nutrient media (PDA-potato dextrose agar) was inoculated with the spores of Aspergillus niger ATCC 6275 and the test samples of the facade paints were placed on the inoculated nutrient in Petri dishes. The samples were incubated and the growth was monitored with a camera during the incubation period. In order to quantify the antifungal activity of the commercial facade paints, a specifically designed program code was used. The obtained results showed that the quality of water has no impact on fungal growth. On the other hand, in-can preservative slightly suppresses the growth of fungi. Also, it was determined that one of the tested biocides has a significantly higher antifungal effect than the other one.
- Subjects
BIOCIDES; PAINT research; ALGAE; FUNGI; ANTIFUNGAL agents
- Publication
Annals of the Faculty of Engineering Hunedoara - International Journal of Engineering, 2014, Vol 12, Issue 4, p138
- ISSN
1584-2665
- Publication type
Article