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Proteiny ve výživě člověka
Fialová, Lucie
This thesis describes the issues related to proteins in human nutrition. It deals with their specific functions in the human body, their structure and the recommended daily intake, and the consequences of either a deficiency or an excess of protein in human nutrition. For this thesis, the work focused on various food sources and their nutritional value, any positive or negative effects on human health, and their availability to consumers. Two different sources were used to determine the preferences and consumption of proteins from either animal or vegetable origins. Information was gathered from public sources, as well as a questionnaire that was given to randomly selected individuals.
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Mikroorganismy s dekarboxylázovou aktivitou z mléka a mléčných výrobků
Hůlová, Michaela
This thesis deals with bacteria that are capable decarboxylase one or more amino acids and thus contribute to the formation of biogenic amines. The aim of this work was to characterize the bacteria with decarboxylase activitthe Escherichia coli, Bacillus, Lactobacillus, Enterococcus isolated from milk and dairy products. Microorganisms were inoculated into tubes with diagnostic medium. To test was used seven amino acids. Incubation tubes conducted at 6, 25, 30 and 37 ° C for 10 days during which the color change was monitored. The tested isolates of Escherichia coli were detected decarboxylase activity, especially for tyrosine and ornithine. The bacterium Bacillus licheniformis was found decarboxylase activity, especially on tyrosine. The bacteria Lactobacillus isolates tested were shown the strongest decarboxylase activity especially for arginine. The bacteria Enterococcus was demonstrated the strongest decarboxylase activity especially for arginine. Furthermore, the observed production of carbon dioxide and formation of biogenic amines contaminating microorganisms in cow's and goat's curd.
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Sorghum (Sorghum bicolor (L.) MOENCH and its utilization possibilities in the condition of the Czech Republic
Hermuth, Jiří ; Janovská, Dagmar ; Strašil, Zdeněk ; Usťak, Sergej ; Hýsek, Josef
Sorghum is one of the oldest used crops. Presently, it is one of the five most cultivated cereals in the world for human nutrition. This methodology includes a comprehensive view of sorghum cultivation and presents the newest knowledge in range from botanical taxonomy to the possibilities of utilization. In this publication, there are included not only our own results but there are also results from the world scientific publications. There are characterized selected species of sorghum suitable for different climatic conditions of the Czech Republic. There are described all aspects and procedures, which can influence the final production of selected sorghum varieties including their quality from the point of view of biogas production.
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