This diploma thesis deals with the antimicrobial properties of herbal substances. Characteristics of these substances, including mechanism of action on microorganisms and their industrial use, is presented in the theoretical part. The aim of microbiological analysis was to determine the extent of diluted (10%) and concentrated essential oils isolated from clove (Syzygium aromaticum), cinnamon (Cinnamomum), and thyme (Thymus vulgaris) against bacteria (Escherichia coli, Enterococcus faecalis, Enterococcus faecium) and yeast (Yarrowia lipolytica, Candida tropicalis and Saccharomyces cerevisiae). To determine them, the disc diffusion method was used. The results confirmed an antimicrobial effect of tested essential oils. Concentrated thyme essential oil had the hightest inhibitory activity on all used microbial strains.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:430551 |
| Date | January 2017 |
| Creators | Žižlavská, Barbora |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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