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Role of true bugs in a lifetime of humans
CHALOUPKOVÁ, Věra
This bachelor thesis covers the theme of the role of true bugs in human life. The aim of this bachelor thesis is to create a brief research focusing on true bugs as human and livestock parasites, pests of crops cultivated by humans, their function in biological control, their use in laboratory research and in food, as well as their occurrence in literature, television programs, music and as an inspiration for artworks and various products
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Edible insects and its position in nutrition
ŽALKOVSKÁ, Aneta
The aim of a bachelor's degree on "Edible insects and their position in nutrition" is to map the consumption of edible insects with surveys answered by respondents who have tasted or regularly eaten insects in the past. Two research questions had been identified: 1) What are the most common types of edible insects consumed in the Czech Republic, and; 2) What nutritional benefits they represent from the subjective point of view of insect consumers. The theoretical part of this bachelor's thesis is focused on getting acquainted with the concept of entomophagia and its position in human nutrition in other parts of the world and in our country. As well, there is listed nutritional composition of selected insect species and interesting points related to the way they are modified, used and consumed in selected countries. The practical part was made based on the evaluation of the results from the pollsurvey answers of the respondents who participated in the catering event called "Big Insect Evening" at the local restaurant "Club of Travelers" in Brno. Based on the evaluation of the survey it was found that entomophagia is currently only taken as a trend of modern gastronomy though not popular. It must be said that according to people's opinion, the interest in eating edible insects will gradually increase in the future: respondents said that after overcoming the psychic barrier, the taste of the insect was surprisingly positive, but they were not able to say with certainty whether they were not able to say with certainty whether they would start to search for it or rank it among their eating habits.
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Insects as human food
Augustinová, Šárka ; Pivnička, Karel (referee) ; Frouz, Jan (advisor)
Insects as a traditional source of food widespread in tropical and subtropical regions offer significant nutritional, economical and ecological gains not only to rural communities. Western bias against insects led to gradual reduction of usage of insects as food without any compensation for lost sources of nutrition and other benefits. Current efforts of the Western world to prevent starvation of population and undo the consequences of inconsiderate human interventions into the environment are often futile and ineffective. One of possible answers to these global problems could be reestablishment of insects as a food source for the native population. Insects offer a renewable source of protein with nutritional values as high as 3186kJ per 100g of solids which exceeds the values of most species traditionally cultivated. The protein content varies throughout the various insect species from 30% in wood-worms to 81% in wasps of the genus Polybia. Moreover, the quality of these proteins is very high and the high values of the amino acids contained outperform the FAO recommended designs. Many species contain important minerals such as calcium, sulfur, iron, phosphor, magnesium and zinc and are as well rich in B vitamins, niacin, riboflavin and thiamin, which are often not incorporated enough into standard meal...
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Nutritional analysis and optimization of breeding of selected species of edible insects under conditions of the Czech Republic with regard to human health
Adámková, Anna ; Kouřimská, Lenka (advisor)
All over the world, the edible insects are considered a highly nutritious food with high protein and fat content. However, the nutritional value of insect is not constant. It can be affected by species, developmental stage, rearing technology or nutrition.
Therefore, this thesis was aimed at obtaining the selected nutritional value of edible insects. Analyses were focused on the determination of the crude protein content, fat content, fatty acid profile and sterols in selected species of edible insects, which can be commonly reared in the Czech Republic. At the same time we also analysed samples of insects reared on the island of Sumatra to evaluate the influence of the climate on the nutritional value. The main aim of the thesis was the determination of optimal breeding conditions, developmental stages and feed rations for obtaining good production of insects with nutritional properties suitable for human nutrition. The analyses showed a high nutritional value of selected insect species, but also confirmed the significant differences in the content of individual nutrients between different species depending on the climate conditions and developmental stage. Comparing the fat and crude protein content in edible insects and other conventional sources of meat it has been found, that the examined insect is similar to beef concerning the fat and crude protein content. The results obtained are the basis for determining the appropriate rearing conditions and developmental stages for obtaining insect with the desired nutritional properties for human nutrition.
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Entmophagy - insects as food of the future
Pondělíčková, Barbara ; Hlava, Jakub (advisor) ; Kulma, Martin (referee)
This bachelor thesis creates a summary of contemporary czech and the world's entomophagy. It contains knowledge about utilising insect as a source of food for people in
a form of literature research. This includes the history as well as contemporary reputation of entomophagy in the eyes of the public. The research part also describes the most notable species of insects utilised for consumtion today including a summary of the basic nutrition data. The following part of this paper studies farming insects distined for consumption and of course, safety concerns coming with consuming insects are also mentioned. In the end of the research part there is a list of several examples of different dishes made from insect.
In the practical part of this paper a questionnaire was created with the goal of mapping a describing the czech public's awareness of insect consumption the possibilities of its spreading. This questionnaire was realised particularly electronic (over the internet), additionally by personal questioning with the purpose of covering bigger variety of answers, especially to get answers from different age groups of the respondents. The recieved answers were analysed and the results were processed into graphs for easier reading.
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Možnosti využití hmyzu jako potraviny v podmínkách České republiky
Bednářová, Martina
The growing interest in edible insects in the Czech Republic is confronted with a minimal amount of information available on this subject. Therefore, the main aim of this work was to map the possibilities of using insects as food in the Czech Republic. To meet the objectives, two hypotheses were defined: 1. Nutritional value of insects bred in the Czech Republic is comparable with the nutritional value of common foods and insects is the alternative in human nutrition. 2. The professionals and laymen in the Czech Republic are ready for including insects as food in the consumer basket. Methodically the objectives were addressed through: a) analyzes of selected nutritional parameters of seven insect species: migratory locust (Locusta migratoria), mealworm (Tenebrio molitor), superworm (Zophobas atratus), honey bee (Apis mellifera), wax moth (Galleria mellonella), silkworm (Bombyx mori), field cricket (Gryllus assimilis); b) analyzes of purine derivates in three species of insects: mealworm (Tenebrio molitor), superworm (Zophobas atratus), field cricket (Gryllus assimilis); c) a survey regarding the use and insect breeding among the consumers, breeders and processors; d) gathering information of the legislative framework from legal authorities of the Czech Republic and the Novel Food Working Group of European Union in Brussels. Analyses proved a high nutritional value of selected species, but also confirmed statistically significant differences in the nutrient content of nutrientss and purines between the species. The survey confirmed the different public attittude to the species, the best score was gained by mealworm (Tenebrio molitor), the worst by silkworm (Bombyx mori). Breeders are willing to produce edible insects for entomophagy. Analysis of legislation and questioning showed that the legislative framework for entomophagy does not yet exist in the Czech Republic. Aims of the study were met, Hypothesis 1 was confirmed completely, Hypothesis 2 only partially. While consumers, farmers and processors are prepared for the edible insects to enter the market in the Czech Republic, the legislative framework is yet to be created.
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