|
|
Design of Hydroponic Flowerpot
Grygerek, Jan ; Buganská, Tamara (referee) ; Sládek, Josef (advisor)
The topic of this bachelor's thesis is the design of an interior hydroponic flowerpot, including its covering and lighting. The main problematic is light smog and finding the smallest possible optimal size of the entire device. Physical laws, passive principles and materials with specific properties are used to find the solution. Particularly, light smog is achived with a dichroic foil. The proposed design of the hydroponic planter is an ideal solution for people living in smaller apartments without the possibility of having their own garden.
|
|
|
Cosmetics preparations against acne
Měšťánková, Zuzana ; Skoumalová, Petra (referee) ; Němcová, Andrea (advisor)
Hemp is a plant containing a number of active substances that can be used in cosmetics and pharmacy. The subject of this bachelor thesis is the multiplication of active substances by mixing cannabis with herbs that have anti-inflammatory effects. The theoretical part contains a description of the determined antioxidants and cannabinoids. The experimental part focuses on measuring the content of these substances in extracts created from the dry parts of herbs and hemp variety Ferimon. The work is also focused on the preparation of a cream containing cannabis and herbal extracts, which are aimed at inhibiting the formation of acne. The antimicrobial effect of creams and extracts was investigated on bacteria Propionibacterium acnes and Micrococcus luteus. The analysis of the extracts shows that the largest amount of active substances contained a mixture of mountain arnica and hemp, which also showed a good antimicrobial effect against both types of bacteria. The creams showed a low inhibitory effect due to the low content of active substances.
|
|
|
Plant-based cosmetic products
Horváthová, Iveta ; Pavelková, Renata (referee) ; Skoumalová, Petra (advisor)
The aim of this bachelor thesis was studying an antimicrobial activity of selected herbal extracts and their encapsulated forms as liposomes. Furthemore, the thesis focuses on determonation of biologically active compounds, natural pigments and antioxidant activity. 6 kinds of herbs were studied - Humulus lupulus, Matricaria chamomilla, Taraxum officinale, Bellis Perennis, Cymbopogon citratus and Rubus Fruticosus. In teoretical part, the general characteristics of herbs and their use are described, it also includes the description of active compounds, microorganisms and used methods. Practical part is focused on characterisation of herbs from the perspective of antioxidant activity, determination of totaly phenolic content and flavonoids, chlorophyll and carotenoids. For analysis of antioxidant activity, concentration of phenolic compounds and flavonoids and antimicrobial activity aqueous and 20% ethanol extracts were prepared. Based on the obtained results, selected extracts were encapsulated into various types of liposomes consisting egg yolk, soy or sunflower lecithin. Generally, ethanol extracts showed higher content of active compounds. For chlorophyll and total carotenoid content determination the highest content of natural pigments was found in Taraxum officinale. Furthemore, antimicrobial activity of extracts and liposomes against 6 strains were determined - Micrococcus luteus, Serratia marcescens, Escherichia coli, Propionibacterium acnes, Staphylococcus epidermidis and Candida glabrata. The highest inhibitory effect was found in Matricaria chamomilla and Cymbopogon citratus samples. Encapsulation effectivity, size, stability and long-term stability of liposomes after a week and two months were determined. From the perspective of zeta potential all the particles were stable and reached a good encapsulation effectivity. It turned out that after two monts of storage the particles decomposed and active compounds into surroundings were released. Selected herbs generally had high content of antioxidants and active compouds. The most suitable lecithin for encapsulation was shown to be sunflower lecithin.
|
|
|
Determination of antimicrobial activity of herbal extracts
Žitková, Barbora ; Veselá, Mária (referee) ; Vítová, Eva (advisor)
The aim of this bachelor thesis was to observe the antimicrobial activity of selected herbal extracts and essential oils against three selected microorganisms, bacteria – Bacillus cereus, Escherichia coli and the yeast Candida glabrata. Two diffusion methods were used to verify and compare the antimicrobial activity, namely the diffusion well and disk method. The theoretical part describes the characteristic of plants from which extracts and oils were made. It also focuses on active substances, vitamins and minerals contained in herbs. Other methods that can be used to determine antimicrobial activity are also mentioned in the work. At the end of the theoretical part the characteristic of the microorganisms used for observation is mentioned. The result of the diffusion well method shows that only eucalypt oil showed antimicrobial activity against all selected microorganisms. It was most effective against Bacillus cereus with an inhibition zone size of 1.73 ± 0.11 cm. The result of the diffusion disk method shows that there are two oils which showed antimicrobial activity against selected microorganisms, namely marrow and eucalypt oil. Nevertheless, the most effective oil was made of mint against Bacillus cereus with an inhibition zone size of 1.57 ± 0.31 cm.
|
|
|
The Influence of traditional ways of management on the State of Coppice - Results in 2018
Balková, M. ; Dařenová, Eva ; Friedl, M. ; Hloucalová, P. ; Kadavý, J. ; Kneifl, M. ; Knott, M. ; Kučera, A. ; Slach, T. ; Skládanka, J. ; Uchytilová, Tereza ; Uherková, B. ; Vichta, T. ; Volařík, D.
The most pronounced increase in number of herb species was remarked in the clear cut+litter gathering treatment. Harvest led to an increase in soil temperature and moisture. TheCO2efflux was the highest in September, namely in control treatment. The lowest intensity of root growth was remarked in the control treatment. Variants with litter gathering had smaller (28.9%) relative growth ratio.
|
|
|
Herb garden and its interdisciplinary use for primary school in Borovany
HEBÍKOVÁ, Petra
This diploma thesis deals with the use of herbal garden during teaching at primary school. The thesis include proposals for activities that have appropriate cross-curricular relations. This activities will reinforce the pupils' knowledge in the area of biology, maths, czech language, art and in music. The activities also include worksheets with various instruc- tions and tasks for each point of interest.
|
|
|
The Effects of Medicinal Plants on the Human Body
Škrdlová, Kamila ; Hlaváčová, Lucie (advisor) ; Skýbová, Jana (referee)
The diploma thesis concentrates on medicinal plants, their use and effects in the treatment of diseases. The thesis summarizes some effects of medicinal substances contained in plants and herbs. They are suitable for use in selected diseases. The research part of diploma thesis deals with the mapping of methods of treatment and production of herbal products among university students. The thesis also examines whether students are inclined to use more herbal therapy over conventional pharmaceutical drugs. It investigated whether information on herbs in schools sufficient. KEY WORDS medicinal plants, plant's medicinal substances, herbs, products, phytotherapy
|
|
|
Sensory evaluation of drinks enriched with extracts of herbs
Scholzová, Kristýna ; Pořízka, Jaromír (referee) ; Vítová, Eva (advisor)
This diploma thesis deals with sensory evaluation of herbal non-alcoholic beverages, being a part of a new product development. The theoretical part provides information concerning chemical composition, health effects, food applications and aroma compounds of the herbs of interest (peppermint (Mentha piperita), sage (Salvia officinalis), St. John’s wort (Hypericum perforatum) and lemon balm (Melissa officinalis). Another topic is a description of sensory methods, requirements and arrangement of the analysis, statistical methods, and also technological processes leading to herbal syrups and beverages production. The practical part comprises sensory analysis of a few, newly designed, formulas of one-component and two-component alcohol free herbal beverages. The sensory panel consisted of 40 students of master's and also doctoral study programme at Faculty of chemistry, University of Technology Brno. Four subsequent experiments are introduced, each of them consisting of a few sensory tests and including corresponding sensory forms attached. The sensory tests arrangement was based on currently valid Czech Technical Standards, using a ranking, descriptive, paired comparison, sensory profile testing and scaling methods. For the purpose of statistical evaluation, Friedman, Kruskal-Wallis, PCA and Faktor analysis were used. Level of abilities and sensory experience of panelists were found comparable to consumer testing. The results include sensory characteristics of all of the beverages tested. In general, the one-component beverages were preferred to the two-component beverages and the additive colouring with aronia concentrate wasn´t found any benefitial, from the sensory point of view. The consumer questionnaire proved all of the samples to be very promising, but based on the sensory results, we would consider the mint and the sage-mint beverages being the most potentialy applicable samples.
|
|
|
Aroma active compounds of selected types of herbs
Škutová, Pavla ; Hrstka, Miroslav (referee) ; Vítová, Eva (advisor)
This diploma thesis deals with the identification of aroma active compounds in medicinal herbs. The group consists of 5 types of herbs: lemon balm (Melissa officinalis), pot marigold (Calendula officinalis), clary sage (Salvia sclarea), milk thistle (Silybum marianum), goat’s rue (Galega officinalis). These plants are known for their positive effects in folk medicine. The SPME-GC-MS method was chosen to characterize the fragrances. During the identification of volatile compounds, emphasis was put on suspected fragrance allergens listed in EC Regulation 1223/2009 in Annex III. Overall 106 compounds were identified together with 8 allergens in lemon balm, pot marigold contained 104 compounds with 7 allergens included, 82 compounds including 5 allergens in clary sage, 73 compounds were identified in milk thistle including 6 allergens and 110 compounds with 9 allergens included in goat’s rue.
|
|
|
Suburban park Bažantnice (Kladno) in Botany and Dendrology Instruction
Veverka, Vojtěch ; Novotný, Petr (advisor) ; Hrouda, Lubomír (referee)
The topic of this thesis is forest park's Bažantnice mapping. The thesis suggests the way of aplication of botanic terrain education. Botany and dendrology is one of the main educations question on elementary and secondary school. Park Bažantnice can be used in science lesson for its hight potential. The thesis i s divided into two parts. The first of them summarizes differents types of the terrain education and focuses on didactic using of the park Bažantnice. The second one deals with the station mapping and describes way of data colecting and adapting. Accompanying pictures and generated maps are included in appendiced at the back of the thesis. Keywords: dendrology, biology, botany, education, park, Bažantnice, Kladno, mapping, herbs, woody plants, terrain education
|
guest ::
