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Spotřebitelské chování na trhu s mlékem a jeho rostlinnými alternativami
Zemanová, Eliška
The thesis is focused on the characterization of segment of final consumers of cow's milk and plant-based milk alternatives in the Czech Republic. The aim of the thesis is to analyze the consumer behaviour of people interested in the consumption of the mentioned products. The literature review was followed by a description of the market for milk and plant-based milk alternatives. The research was carried out in the form of a questionnaire survey, in which 383 respondents was originally participated, but 6 respondents were subsequently removed from the research due to incorrect completion of the questionnaire. The established hypotheses were evaluated by the Pearson Chi-Square Test. The research found out that more respondents consume cow's milk than plant-based milk alternatives, that consumers are willing to pay more for higher quality products, and in the area of plant-based milk alternatives, according to a minority of respondents, there is a demand for a larger assortment. In conclusion, recommendations for business entities operating in the market were proposed.
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Calcium intake in children with cow's milk protein allergy
BÍLKOVÁ, Kateřina
The bachelor thesis deals with the calcium intake in children with cow's milk protein allergy from their diet. As the first aim I chose to inform parents about possibility of deficiency of the calcium intake in children with cow's milk protein allergy. The second aim is to find out the calcium content in the diet of children with this allergy. In the theoretical part of my bachelor thesis I briefly describe food allergy in general then I focuse on cow's milk protein allergy, types of reactions, symptoms, diagnostics and therapy. As the topic of this bachelor thesis is calcium intake in children with cow's milk protein allergy, the next part is devoted to calcium, its importance in human body, absorption, usability and also resources. At the end of theoretical part of this thesis I mention the specifics of nutrition in children with this allergy, such as different labeling of ingredients containing milk protein on food packaging or in composition of dishes, and also possibility of replacing milk and milk products in terms of consistency and taste. In the practical part of this bachelor thesis I cooperate with mothers of children with cow's milk protein allergy who give me one week menu of their children, from which I calculated the calcium intake for each day and also the average weekly calcium intake per day. I also informed these mothers about the possibility of calcium deficiency in their children's diet. Calcium intake approaching the recommended daily intake for a group of children aged 1-3 years occured only in one case. In four cases was the intake of calcium from children's diet lower than 50 % of the recommended daily intake for these children.
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Obsah zinku, mědi a jódu v mléce krav
JAKEŠOVÁ, Jitka
Milk and dairy products are one of the most important sources of essential trace elements in human nutrition. My thesis provides informations about the content of zinc, copper and iodine in milk during the lactation and also includes the impact of other factors on the content of elements. The experiment includes dairy cattle breedings from Hořepník and Chyšná which are located in the region Vysočina. Another breeding is from Haklovy Dvory. It is located in southern Bohemia. Milk samples were taken in the relation to performance monitoring. During the period 25 to 132 days of lactation were taken 90 samples of milk from the Hořepník breeding. From breeding Chyšná were taken 78 samples of milk in the period of 11 - 89 days of lactation and from breeding Haklovy Dvory 81 samples of milk during the period 23 to 244 days of lactation. Copper and zinc content in milk was determined by atomic absorption spektrometry. The iodine content in the milk was set by spectrometry after incineration alkaline by Sandell-Kolthoff. The average zinc content in the milk was 3.59 ? 1.15 mg-l-1. The average copper content in milk was 0.14 ? 0.12 mg-l-1and the average content of iodine in the milk was 0.18 ? 0 06 mg-l-1. The greatest variability in milk was proved to copper (V = 82,65%), the lowest zinc (V = 32,05%). The greatest effect of the duration of lactation was observed in breeding Hořepník (Zn: rxy = -0,430, Cu: rxy = -0,425, I: rxy = 0,326). The influence of the duration of lactation was insignifant in the breeding Haklovy Dvory and Chyšná. Cow's milk, according to our results, supply the iodine accounts from 19,2% for men and 52,4% for women. The milk supply the zinc accounts from 5,2 % for men and 7,2 % for women, and copper from 2,5% for both sex.
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Milk as a source of trace elements
BOUCHALOVÁ, Jana
The aim of this thesis was to enumerate the contents of important trace elements in cow's milk (iodine, zinc, copper, manganese) and evaluate the importance of milk as the natural resources in human nutrition. The average content of iodine in cows' milk in farms of South Bohemia in 2009 was 360,91 ?g/l, 2010 440,62 ?g/l in 2011 337,14 ?g/l. The average content of zinc in cow's milk in 2009 was 4825,15 ?g/l. The average content of copper in cow's milk in 2009 was 38,78 ?g/l. The average content of manganese in cow's milk in 2009 was 16,49 ?g/l. The average consumption of 0.16 liter of milk per person per day provided income of iodine in 2009 in 39%, in 2010 in 47%, in 2011 in 54%, income of zinc in 2009 in 6%, copper income in 0,3% and manganese income in 0,07%.
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