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Use of capillary electrophoresis to determine a selected group of flavonoids
Tran Xuan, Tiep ; Mravcová, Ludmila (referee) ; Řezáčová, Veronika (advisor)
In recent years, the use of natural medicinal properties of plants has again come to the forefront of interest of the public. Because of their therapeutic properties, these plants are commonly used in alternative treatments for minor ailments. This thesis deals with the determination of polyphenolic acids in extracts from aronia, echinacea, tetradenia and centella. One of the aims of the thesis was to compare the amount of polyphenolic acids in individual plants with their antioxidant properties. The theoretical part includes a general introduction to flavonoids, introduction to polyphenolic acids, introduction to the principles of capillary zone electrophoresis and a summary of selected foreign studies for the determination of flavonoids. An important chapter of the theoretical part is a description of individual plants with an explanation of their possible therapeutic use. The experimental part is devoted to the process of optimization of electrophoretic determination of selected polyphenolic acids and evaluation of their content. It was found that in the extracts six representatives of polyphenolic acids occur in minimal amounts, often below the limit of quantification or detection of the method.
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Use of capillary electrophoresis to determine a selected group of flavonoids
Tran Xuan, Tiep ; Mravcová, Ludmila (referee) ; Řezáčová, Veronika (advisor)
In recent years, the use of natural medicinal properties of plants has again come to the forefront of interest of the public. Because of their therapeutic properties, these plants are commonly used in alternative treatments for minor ailments. This thesis deals with the determination of polyphenolic acids in extracts from aronia, echinacea, tetradenia and centella. One of the aims of the thesis was to compare the amount of polyphenolic acids in individual plants with their antioxidant properties. The theoretical part includes a general introduction to flavonoids, introduction to polyphenolic acids, introduction to the principles of capillary zone electrophoresis and a summary of selected foreign studies for the determination of flavonoids. An important chapter of the theoretical part is a description of individual plants with an explanation of their possible therapeutic use. The experimental part is devoted to the process of optimization of electrophoretic determination of selected polyphenolic acids and evaluation of their content. It was found that in the extracts six representatives of polyphenolic acids occur in minimal amounts, often below the limit of quantification or detection of the method.
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Historické a současné odrůdové sortimenty třapatkovek (Echinacea Moench) a jejich hodnocení v klimatických poměrech středoevropského termofytika
Matis, Richard
The diploma thesis on Historical and current varietal assortment of Echinacea Moench and their evaluation in the climatic conditions of the Central European thermophyticum summarizes the complete assortment development. The genus itself has 10 species and several varieties. the original location, North America with scattered areas of occurrence. Among the basic observed features of the assortment were the coloring of inflorescences, leaves, stems and subsequent comparison with RHS Color Chard standards. The stand height, leaf length, inflorescence diameter and radiant flowers were also evaluated and compared. The observation was done in two places and the results were summarized. Among the overflows of several plants, two were chosen as hopeful, for overgrowth.
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Hodnocení sortimentu třapatkovek (Echinacea) v klimatických podmínkách středoevropského termofytika
Marešová, Monika
This diploma thesis Evaluation of the assortment of coneflowers (Echinacea) in the climatic conditions of Central European thermophytic deals with the evaluation of the genus Echinacea (L.) Moench assortment. The thesis is focused on topics dealing with history, morphology, taxonomy, cultivation and breeding of the family Coneflowers. Regarding the practical part, 45 cultivars of the genus Echinacea were observed and evaluated. Measured and evaluated characters were compared with other authors ratings.
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Selected schools' students' awareness of selected types of nutraceuticals
Homolková, Zuzana ; Váchová, Alena (advisor) ; Hanušová, Jaroslava (referee)
The main topic of this work is food supplements, their legislation and other theory connected with them, the main focus is on plant nutraceuticals, of which are chosen food supplements marketed to support immunity system - echinacea, sea buckthorn and oyster mushroom, food supplements to support psyche - St. John's wort, ginkgo and valerian and dietary supplements to support body fitness - tribulus, garcinia and psyllium. Subsequently, the topic focuses on the marketing of nutraceuticals, its modern ways and the possibilities of increasing the students' awareness in this field through the principles of media education. In the practical part, 112 students aged 15-19 are presented with a lecture presenting the topic and inviting students to raise their interest in the subject. The feedback of the lecture is provided by a questionnaire whose questions correspond to the hypotheses set by the author. KEYWORDS nutraceuticals, media education, marketing, Echinacea, Garcinia, Pleurotus, Hippophae, Gingko, Plantago, Hypericum, Valeriana, Tribulus
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Selected schools' students' awareness of selected types of nutraceuticals
Homolková, Zuzana ; Váchová, Alena (advisor) ; Hanušová, Jaroslava (referee)
The main topic of this work is food supplements, their legislation and other theory connected with them, the main focus is on plant nutraceuticals, of which are chosen food supplements marketed to support immunity system - echinacea, sea buckthorn and oyster mushroom, food supplements to support psyche - St. John's wort, ginkgo and valerian and dietary supplements to support body fitness - tribulus, garcinia and psyllium. Subsequently, the topic focuses on the marketing of nutraceuticals, its modern ways and the possibilities of increasing the students' awareness in this field through the principles of media education. In the practical part, 112 students aged 15-19 are presented with a lecture presenting the topic and inviting students to raise their interest in the subject. The feedback of the lecture is provided by a questionnaire whose questions correspond to the hypotheses set by the author. KEYWORDS nutraceuticals, media education, marketing, Echinacea, Garcinia, Pleurotus, Hippophae, Gingko, Plantago, Hypericum, Valeriana, Tribulus
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