National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Antimikrobiální vlastnosti rostlinných látek
Žižlavská, Barbora
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.
Screening fenolických látek v tradičním čínském koření
Žižlavská, Barbora
This bachelor thesis deals with the determination and identification of phenol constituents in traditional Chinese plants like garlic (Allium sativum), ginger (Zingiber officinale), clove (Syzygium aromaticum) and cinnamon (Cinnamomomum). Bioactive compounds were extracted in two ways - using water and ethanol. UHPLC technique was used for detection of individual phenol constituents concentration. The next part of this work was aimed at antioxidant potential study of these spices. The total equivalent antioxidant capacity (TEAC) was determined by using ABTS.+ method and total phenol content (TPC) was measured by using Folin-Ciocalteu method. In literature search there is botanical description of these plants. There are also summarized some phytochemical and pharmacological properties, which affect human health.

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