Abstract
Abstract This study compared the effects of white and red thyme oil against natural biofilm. Thyme oil contains various volatile biologically active substances that can affect the growth of biofilm (algae, cyanobacteria, bacteria). In the first step, white thyme oil was therefore tested in flasks using a plastic lid (air-tight) or a cotton plug (air-permeable). The aim was to determine whether the method of closing the test containers affects the amount of biomass obtained. This was measured using a spectrometer at a wavelength of 750 nm. The results showed a clear positive effect of the cotton plug on the growth of the biofilm without a significant effect on the inhibition rate of the tested oil concentration. In the next step, the algicidal effectiveness of white and red thyme oil (10 mg/L and 100 mg/L) against biofilm was compared. The results showed a higher efficiency of red oil. Therefore, red thyme oil was selected for further research.
Published Version
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