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Pěstování ostropestřce mariánského [Silybum marianum (L.) Gaertn.] z hlediska ekonomických aspektů
Buba, Lukáš
The first part of the Master’s thesis describes the history and the present of milk thistle growing in the Czech Republic. Furthermore, the paper describes the biological characteristics, the varieties, phytochemistry and the use of this crop. The thesis in detail deals with the cultivation technology requirements. The classification of milk thistle in sowing procedure, tillage, nutrition, treatment during the vegetation period, harvest and post-harvest treatment of this crop are described. The second part of the thesis describes the course of weather and the growing procedure for this crop in the company Netis, a.s. Dry matter, purity, TKW, bulk density, germinability, oiliness and representation of individual components of the silymarin complex were determined in milk thistle achene samples. The experimental data found during the “first” cultivation at Netis, a.s. were evaluated in terms of the economy of cultivation. The economy of cultivation was compared with that of the traditional grower Agrospol, a.d. Knínice. The economy of milk thistle cultivation at Netis, a.s. was compared with that of other crops grown there.
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Stanovení významných obsahových látek bezu černého [Sambucus nigra L.] z různých lokalit
Badinová, Veronika
The work deals with (in a literary summary) résumé of the knowledge about european elder [Sambucus nigra L.], it also describes the content of important substances and its utilization. The samples were collected at selected areas. The obtained samples were analyzed at the Research Institute of Brewing and Malting, a.s. using a UPLC liquid chromatograph with a PDA detector. It was determined the content of chlorogenic acid, vanilic acid, coffee acid, coumaric acid, quercetin, rutin, isoquercitrin and hyperoside was determined. The highest content was found in the extraction of free phenolic substances.
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Hodnotenie rastových a kvalitatívnych parametrov vybraných odrôd chilli paprík
Brajerová, Katarína
This diploma thesis “Evaluation of growth and qualitative parameters of chosen chilli peppers varieties” is about the comparison of the cultivars of chilli peppers. There have been 13 cultivars involved in the experiment. The first part of the thesis is about literary overview about the technology of growing. In the second, experimental part, the qualitative and quantitative characteristics of the varieties have been evaluated – product, growth and contents substances (vitamin C, capsaicin, dry basis) of the plants. The experiment was successfully conducted in cooperation with the company World of chilli, s.r.o. in 2018 and subsequently it was evaluated in the laboratory of ZF Mendela in Lednica.
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Obsahové látky v jednotlivých frakcí filtrace kalolisem
Šilinek, Jiří
This bachelor study in the theoretical part describes the substances contained in the wine, which will be evaluated in the filtered wine samples. Furthermore, it describes the most common systems of sludge filter presses and more thoroughly the one on which this test took place. The experimental part describes the methods for the determination of individual substances and evaluates the results measured in the laboratory in compa-rison with the sensorial results. Based on the knowledge gained, it is possible to deter-mine better oenological practice in practical wine production.
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Hodnotenie obsahu sekundárnych metabolitov a ďalších vybraných zložek v odrodách bazalky pravej pestovaných v skleníkových podmienkach
Muráriková, Andrea
The variety of Ocimum basilicum plays a primary role among culinary herbs in world trade. The main objective of this study was to determine yield and chemical composition of the essential oil, total phenolic and flavonoid content, total antioxidant capacity, L-ascorbic acid, crude fiber, nitrates, chlorophyll a, b, and carotenoids content. This work should be verified what influence had the variety, the seasonal, and the external factors affecting to said substances. Experiment was established in the greenhouse of the Faculty of Horticulture, Mendel University in Brno. The basil varieties, namely 'Ohře', 'Lettuce Leaf', 'Purple Opaal', 'Dark Green', 'Mammolo Genovese', 'Manes', and 'Red Rubin' were grown as a pot culture during the years 2014-2016. The essential oil were isolated by distillation and analysed by Gas Chromatography-Mass Spectrometry (GC-MS). The total phenolic content (TPC) was determinated spectrophotometrically according to Folin-Ciocalteau colorimetric method. Determinations of the total flavonoid content (TFC) were measured with the aluminium chloride colorimetric assay. The total antioxidant capacity (TAC) was evaluated by their ability to scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) stable radicals. The ascorbic acid content was determined by High Performance Liquid Chromatography (HPLC). The crude ?ber content was determined by the enzymatic gravimetric method. The nitrates content was determined by Ion Selective Electrode (ISE). Chlorophyll a, b, and carotenoids were determinated spectrophototmetrically in the acetone extracts. The essential oil production was from 2.45 to 18.12 mg.kg-1 d. w., depending on variety and season. GC-MS analysis showed that the essential oil from 7 basil varieties consist of 41 components. Main constituents of the essential oil were methyleugenol (4.59-48.13 %), followed by methylchavicol (4.59-48.13 %), ß-linalool (0.43-33.25 %), eugenol (0.45-33.52 %), ?-bergamotene (0.07-13.40 %), eucalyptol (0.71-11.70 %), and ?-cadinene (0.24-8.90 %). The 'Purple Opaal', 'Dark Green', 'Mammolo Genovese', 'Mánes' and 'Red Rubin' varieties were identified as methyleugenol chemotypes while 'Ohře' varied according to the seasonal prevalence of linalool / methyleugenol. Variety 'Lettuce Leaf' was specific by the methylchavicol domination. The amount of TPC observed in methanol extracts were from 364.07 to 5606.43 mg GAE.100 g-1 d. w. TFC varied from 430.14-5979.69 mg CE.100 g-1 d. w. TAC were measured from 2.40 to 44.48 mM TE.100 g-1 d. w. L-ascorbic acid was ranged between 34.27-234.47 mg.kg-1 f. w. Content of crude fiber varied from 9.57 to 21.74 %. The mean levels of nitates were from 178.67-17918.21 mg.kg-1 f. w. The average contents of chlorophyll a, b, and carotenoids were 3.01-5.15, 1.26-2.65, and 0.65-1.53 mg.g-1 f. w., respectively. The influence of the variety and the season on the evaluated substances was significantly confirmed. The external factors on growth (temperature, relative humidity and solar irradiance) had an impact on all evaluated parameters with the exception of the contents of essential oils and TAC. For further cultivation of basil in pots, the most suitable are varieties 'Mánes' (excellent source of essential oil), 'Lettuce Leaf' and 'Red Rubin' (for their antioxidant capacity, and high contents of crude fiber). On the contrary, prone to the accumulation of nitrates were purple leaves varieties 'Purple Opaal' and 'Red Rubin'.
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Hodnocení pěstitelských vlastností vybraných zástupců chilli paprik v podmínkách Jižní Moravy
Konečková, Jana
The topic of this diploma thesis is Floricultural qualities evaluation of chosen Chilli peppers in the Southern Moravia conditions. This thesis deals with chilli pappus capsicum family. The first part of study involves historical chilli pappers origin and the sekond part focuses on evaluative floricultural values experimental and substances of chilli pappus. This thesis was elaborated in cooperation with World of chilli s.r.o.
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Hodnocení vybraných druhů asijských salátů v podmínkách ČR
Nollová, Kateřina
The aim of this master thesis is to compare cultivars of asparagus lettuce (Lactuca sativa L. var. angustana L. H. Bailey) and Indian lettuce (Lactuca indica L.). Five cultivars of asparagus lettuce and one cultivar of Indian lettuce were included in the experiment. Morphological parameters, yields and content substances (vitamin C, carotenoids, nitrates and dry matter) were evaluated. The experiment was successfully carried out on the grounds of the Faculty of Horticulture in Lednice in years 2015 and 2016. Contents of vitamin C, carotenoids, nitrates and dry matter were subsequently evaluated in a laboratory. The share of domestic production in the total consumption of vegetables in the Czech Republic could be enhanced by expanding the range of other, valuable, Asian asparagus and Indian lettuces.
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Možnosti péče a obnovy genofondu rodu Rheum L.
Kostovská, Lucie
The aim of this thesis is to describe the items of the gene pool of the species Rheum L. located in the experimental garden of the Faculty of Horticulture of Mendel University in Lednice, to propose the procedure of relocation of this gene pool and evaluate the results of this relocation and to record the wintering of plants and the overall condition of the gene pool as at 30 March 2016. Included in this thesis is the process of monitoring and evaluation of the items of this gene pool. Descriptors were evaluated upon the basis of the valid classification system for the Rheum L species. A total of 44 items were evaluated. These evaluations were combined with laboratory tests of vitamin C, oxalic acid, mononitrate and fibre contents in stems. Tests for refractive solids, solids and overall antioxidant capacity were carried out. Samples of roots of medicinal species of rhubarb were obtained but laboratory tests for the contents were not carried out due to technical difficulties.
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Hodnocení odrůdového sortimentu kadeřávku z České republiky a Asie
Cifrová, Barbora
This thesis deal with comparison of czech and asian varietal range of kale (Brassica oleracea var. acephala). A practical experiment was divided into two parts. Evaluation of yield parameters and evaluation of contents of selected substances. It was totaly evaluated three varietes from czech range and one variet from asian. Asian variety has been assessed as generally robust variety, with firm struscture, high cont ent of solids and the lowest fiber content. This variety excelled with highest content of vitamin C and magnesium. Only variety 'Rednex' excelled with economic return from czech range.
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Využití vybraného modelového zeleninového druhu
Bláha, Pavel
The diploma thesis on The use of selected model vegetable species follows the bachelor thesis Possibilities of using the species Scorzonera hispanica L. from 2015. First part of this thesis looked into available information about this vegetable and was focused more closely on substances contained in it. The practical part of the experiment consisted of field trial and laboratory experiment. The field section used was divided into four variants, where the influence of irrigation and fertilization on the morphological and nutritional parameters was monitored. Morphological parameters and content of the black salsifies were determined in the laboratory experiment. The statistical evaluation showed positive effect of irrigation on higher levels of potassium, phosphorus and inulin. Variants without irrigation contained more fiber, magnesium and nitrates. Different processing methods of black salsify were used to determine inulin. Most inulin was found in the frozen variety and the least in cooked. To examine the possibility of introducing a black salsify into gastronomic facilities, a black salsify product was created and engaged in gastronomy for one month.
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