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Analysis of pesticides in the environment using the QuEChERS method
Vašinková, Alena ; Řezáčová, Veronika (referee) ; Mravcová, Ludmila (advisor)
This thesis focuses on pesticides in the environment, more specifically in cereals. Pesticides were monitored in various samples of cereals (barley, rye, oats, and wheat) within the thesis. The monitored substances were isolated in selected samples and concentrated using the QUECHERS method. Gas and liquid chromatography were used to determine pesticides. The theoretical part consists of the common types of pesticides, divided by the ease with which these substances into food and their impact on humans and environment. It also mentions current health protection legislation and environmental legislation.
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Czech Agriculture Food Inspection Authority Annual Report 2022
Státní zemědělská a potravinářská inspekce
Annual report includes these chapters: introduction by Director General, control activities, laboratory activities, certification, legislation, cooperation with other public bodies and institutions in the Czech Republic, quality management systém, international relations, public relations, human resources, financial management report, conclusion.
Fulltext:  PDF
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Toxic substances in food and public health
SOSNA, Filip
This diploma thesis dealt with the area of toxic substances in food and their impact on public health. The work aims to describe the types and occurrence of toxic substances, analyze the current state of toxic substances found in food and define their impact on public health. It also aimed to describe the effects of toxic substances on the human body. The work is divided into theoretical and practical part. The theoretical part first introduces the historical origins of the scientific field of toxicology. It also defines basic toxicological terms and parameters. Describes factors affecting the toxicity of substances, absorption, distribution, the effect of metabolism and excretion of toxic substances. Objective 1 was met by describing the basic types of natural and foreign toxic substances. Furthermore, their occurrence was described and their impact on public health was defined. The effects of toxic substances on the human body have been described in relation to Objective 2. The effects of toxic substances can manifest themselves in many ways. It can be mild nausea or even death. The second half of the theoretical part deals with toxic substances in the food industry. It describes a massive increase in the use of chemicals in food and agriculture, whether they are various pesticides, crop treatments, or various additives that are added to foods to improve some of their properties. Some of these substances can have an adverse effect on health, and when we consume them in food in quantities that are permitted by legislation, no one has a clear idea of what the consumption of additives and pesticide residues in food can cause us in the long term. The practical part examines the awareness of the general population about toxic substances in food and their impact on public health. The practical part was created using quantitative research, which was conducted through a questionnaire survey. The questionnaire was created on the basis of the theoretical part of the work. The research group consisted of 114 respondents from the general population. The questionnaire consisted of 21 questions that examined the addressees' awareness of toxic substances in food and public health. The results of the research survey corresponded the given knowledge to two research questions, which asked the work whether the public is oriented in the field and whether they differ according to their education. The results were graphically processed and evaluated. It was found that the public is not very familiar with toxic substances in food and public health. The work can serve as a comprehensive educational material on toxic substances in food and public health. The theoretical benefits of this work include an analysis of the current state of toxic substances in food, including a description of control authorities and relevant legislation in the field of toxic substances in food and public health. Among the practical benefits is the creation of a questionnaire that examined public awareness of this issue. Based on the achieved results, follow-up work can be proposed - for example, exploring the possibility of raising public awareness of toxic substances in food.
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Nutrition in ulcerative colitis
PAVELKA, Filip
This bachelor thesis deals with nutrition in ulcerative colitis. The goal of the thesis was to find out how the nutrition meets nutritional and energetic needs of patients, to find out which foods most often cause problems for patients and to find out which foods are well tolerated and sought in the relapse. The thesis is divided into theoretical and practical section. The theoretical section deals with the disease of ulcerative colitis, its definition, clinical picture, treatment or nutrition. The section about nutrition deals with its most important components, important foods, nutrients, as well as recommended and mentioned diets. The practical section is divided into two parts. In the first part, data were obtained by a quantitative method using questionnare of own design. The research group consisted of 179 respondents with ulcerative colitis, who stated in the questionnaires, among other things, which foods they consume at various stages of the disease. In the second part of the research, two-week diets from 4 respondents with were evaluated. These diets were evaluated with the help of the Nutriservis application and the results were compared with the recommended values of energy and nutrient intake of individual respondents, calculated on the basis of height, weight, age and sex. The data obtained using the questionnaires show that the most common problems for patients in relapse cause e.g. legumes, poppies orfatty meats. Poppies, legumes ornuts, for example, most often cause problems in remission. On the contrary, lean meat, sea fish, eggs or potatoes are well tolerated in relapse. The evaluated diets of the respondents show that no respondent in the average values from the whole two weeks reached the calculated values of energy and essential nutrients, which i determined on the basis of calculations. The most deficient nutrient was carbohydrates of which there were 52 deficient days out of a total of 56.
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Zařazování nemléčných příkrmů do výživy kojenců
VRBASOVÁ, Tereza
The inclusion of non-dairy foods into the infants nutrition is very important period. The infant now needs all the nutritions in the most optional proportion. The inclusion of individuals foodstuffs into the nutritions small children has some rules. Allergenic foodstuffs needs to be classified gradually and with the caution. It's recommended to introduce alergens as soon as possible, later introduction may lead to a higher risk of allergic reaction. The inclusion of foodstuffs or allergens in the child's diet is always advesible to consult with the doctor.
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Czech Agriculture Food Inspection Authority Annual Report 2021
Státní zemědělská a potravinářská inspekce
Annual report includes these chapters: introduction by Director General, control activities, laboratory activities, certification, legislation, cooperation with other public bodies and institutions in the Czech Republic, quality management systém, international relations, public relations, human resources, financial management report, conclusion.
Fulltext: PDF
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Analysis of pesticides in the environment using the QuEChERS method
Vašinková, Alena ; Řezáčová, Veronika (referee) ; Mravcová, Ludmila (advisor)
This thesis focuses on pesticides in the environment, more specifically in cereals. Pesticides were monitored in various samples of cereals (barley, rye, oats, and wheat) within the thesis. The monitored substances were isolated in selected samples and concentrated using the QUECHERS method. Gas and liquid chromatography were used to determine pesticides. The theoretical part consists of the common types of pesticides, divided by the ease with which these substances into food and their impact on humans and environment. It also mentions current health protection legislation and environmental legislation.
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