Abstract
The article substantiates the possibility of using the method of direct contact with test cultures as an express method for assessing the quality of biocidal substances. This technique allows to test soluble biocidal preparations, while reducing the time of biocide selection, which eliminates the need for large-scale full-scale testing of structures under real operating conditions, providing cost savings.
Highlights
Biocorrosion is one of the most aggressive means of influencing building structures, significantly reducing their operational reliability [1, 2]
It is proposed to evaluate the fungicidal activity of biocides according to the method described in [8], the essence of which is the growth of cultures of mold fungi in solutions of biocidal additives
According to the data obtained, Megadez and Dinovis absolutely suppress the growth of all molds in maximum, and in minimum concentrations, they have absolute fungicidal properties (Fig. 1, 2); (for all the figures shown below in the text (Fig. 1–4): on the left – control, without the addition of biocide, in the center – the maximum recommended concentration of the preparation, on the right - the minimum recommended concentration)
Summary
Biocorrosion is one of the most aggressive means of influencing building structures, significantly reducing their operational reliability [1, 2]. One of the most effective and lasting methods of protecting building materials and structures from damage by microorganisms is the use of chemical substances, namely biocides. It is proposed to evaluate the fungicidal activity of biocides according to the method described in [8], the essence of which is the growth of cultures of mold fungi in solutions of biocidal additives. Using this method of assessing the fungicidal activity of biocides as express method will allow to optimize substance screening procedures, as it reduces the analysis time, reduces the consumption of substances and eliminates the need for largescale full-scale biocidal tests under real operating conditions. Various preparations can be tested in a liquid medium, both on an alcoholic and a water basis
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