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Preparation and characterization of foods and food supplements containing selected vitamins
Krupičková, Lucie ; Hoová, Julie (referee) ; Skoumalová, Petra (advisor)
The thesis is focused on preparation of protected form of vitamins for aplication to food and diatery supplemets. The theoretical part characterizes vitamins and describes their role in human organism. Furthermore, this chapter summarizes different methods of determination vitamins soluble in water and encapsulation of substances into liposomes. The last sections are focused on functional foods and dietary supplements. In experimental part, an optimalization of determination method was made. Selected vitamins were encapsulated into liposomes. Size, stability, encapsulation efficiency, long-term stability and long-term encapsulation efficiency after two weeks was determined there. All prepared liposomes were found to be stable enough. Furthermore, the vitamin solutions, liposomes and lyophilized particles were analyzed during the process of model digestion. The active forms of vitamins were degraded during the model digestion of vitamin solutions. Vitamins were gradually released from the liposomes and lyophilized particles into the digestive juice. The analysis of content declared by producer was executed for functional foods and dietary supplements. Finally, applications of protected form of vitamins into the food and dietary supplemets were created.
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Kvalita a uplatnění funkčních cukrovinek
Uchytilová, Agáta
This thesis deals with the quality and application of functional confectionery. Its literature search focuses on confectionery and functional foods. Chocolate products are discussed in detail, including the content of bioactive ingredients and methods of fortification. The part of the research devoted to functional foods focuses on their characteristics, their production and their possible applications in the fight against diseases of civilization. In the practical part of the work, a recipe for fortified pralines was developed. These were fortified with two types of protein powders – animal and plant, which were added in different concentrations. Subsequently, samples were compared with each other using sensory questionnaires. The samples containing animal protein were better evaluated. The protein content and water activity of the prepared samples were also determined. Determination of protein content confirmed a significant increase in protein content with protein dose. Water activity decreased with increasing amount of protein powder addition.
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Preparation and characterization of foods and food supplements containing selected vitamins
Krupičková, Lucie ; Hoová, Julie (referee) ; Skoumalová, Petra (advisor)
The thesis is focused on preparation of protected form of vitamins for aplication to food and diatery supplemets. The theoretical part characterizes vitamins and describes their role in human organism. Furthermore, this chapter summarizes different methods of determination vitamins soluble in water and encapsulation of substances into liposomes. The last sections are focused on functional foods and dietary supplements. In experimental part, an optimalization of determination method was made. Selected vitamins were encapsulated into liposomes. Size, stability, encapsulation efficiency, long-term stability and long-term encapsulation efficiency after two weeks was determined there. All prepared liposomes were found to be stable enough. Furthermore, the vitamin solutions, liposomes and lyophilized particles were analyzed during the process of model digestion. The active forms of vitamins were degraded during the model digestion of vitamin solutions. Vitamins were gradually released from the liposomes and lyophilized particles into the digestive juice. The analysis of content declared by producer was executed for functional foods and dietary supplements. Finally, applications of protected form of vitamins into the food and dietary supplemets were created.
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Functional foods and their application on regional food market
NACHÁZELOVÁ, Nikola
The aim of the bachelor thesis was to characterize the contribution of functional foods to human health and to formulate an effective procedure for introducing functional foods into the regional food market using marketing mix tools. A questionnaire survey was carried out for the thesis to determine whether the inhabitants knew functional foods. As a result, it was found that the majority of the population do not know the concept of functional foods and their health effects. Based on this data, a solution was proposed to inform people about these foods and how to increase their sales.
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Comparison of Czech and world superfoods
Soldánová, Lucie ; Vojáček, Jan (advisor) ; Slimáková, Margit (referee)
v angličtině k bakalářské práci na téma "Srovnání českých a zahraničních superpotravin" ,Lucie Soldánová, Karlova Univerzita, 1. lékařská fakulta, obor Nutriční terapeut. This bachelor thesis focuses on the topic of superfoods and aims to discover how our crops differ from those from abroad. The work consists of a theoretical and practical part. In the theoretical part of my thesis, I firstly analyze five most well known foreign (avocado, soy, goji, chia seeds and quinoa) and Czech (various seeds, poppy seeds, walnuts, blueberries and vegetable juices) superfoods. Then I compare them on four levels- a nutritional, economical, ecological and ethical one. In the practical part I asked several questions related to the problematics of superfoods and with the use of sent out questionnaires investigated whether people know superfoods, what is their opinion on them, if they buy them and whether they think about their origin and deeper problematics of the import of exotic crops. I discovered that more than 75 percent of those questioned are aware of superfoods. Whole 40 percent of people were somewhat sceptical of these foods and only 18,5 percent expressed full trust in them. Almost 73 percent of respondents buy superfoods at least once a week, which reflects their more frequent consumption, while the...
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Fiber intake in developed countries and possibilities for its increase in population
Ježková, Kristýna ; Pejšová, Hana (advisor) ; Křížová, Jarmila (referee)
This diploma thesis deals with fiber intake and possibilities of its increase. The main aim of the thesis is to evaluate the actual intake of fiber in the population and to find out whether people actually know what fiber is and what should be its daily intake. The theoretical part is focused on fiber itself. It describes its characteristics, distribution, properties and sources. The effect of fiber on human health and the consequences of insufficient or excessive fiber intake are discussed as well. The practical part is focused on the real intake of fiber in the population. It is done in the form of a questionnaire survey, in which I try to find out what knowledge of fiber people have, but also how often they consume foods containing fiber. Most of the questionnaires were handed out to customers of one unnamed pharmacy and healthy nutrition center in Prague and other passers-by. Altogether, I managed to collect 84 questionnaires. The questionnaire results show that vast majority of respondents have an idea of what fiber is and which foods contain it most; however, they do not know what the recommended daily intake is. Still, half of the respondents think their diet includes enough fiber. The fiber intake in men and women was not much different. The most significant difference was in the...
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Funkční potraviny a možnosti zvýšení jejich spotřeby
HIRKOVÁ, Eliška
The aim of this thesis is to define the contribution of functional foods for human health and formulate an effective introduction procedure of functional foods for the regional food market using marketing mix tools. The practical part is done in cooperation with ALIMPEK al. s r. o. The company is trying to introduce a new product to the customers (bread, which contains modified flax) and present its health benefits. Questionnaire survey confirmed, that the consumers are aware of the impact that food has on human health and are inquiring its specific effects. The source of the information that affects the customers mostly is the internet (unprofessional publications) and etiquette of the product. Consumers are aware that flaxseeds are beneficial to health, but they could not list the specific effects. It was further found that consumers do not know the composition of the bread they buy. Based on the data and information gathered, possible solutions that could lead to increased consumption of selected functional foods were proposed.
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The effect of the clame "superfoods" in consumer behaviour
Neťuková, Markéta ; Vondra, Zdeněk (advisor) ; Pešek, Ondřej (referee)
The master thesis is concerned with the effect of the clame superfood and its impact in consumer behaviour. The aim of this thesis is to find out how consumers perceive the phenomenon of superfoods and how this claim effect their consumer behaviour. The theoretical part of the thesis defines and explains the terminology related to the key term superfoods such as functional foods, superfruits and organic foods. Subsequently the thesis edentifies the rules of a food labeling with the emphasis on health and nutrition-related claims. The thesis then examines the recent development of the superfoods market with its trends either from the local and the global point of view. The theoretical part is ended by the analysis of the methodology The Six Elements of Superfruits Success, which defines the six elements leading to a successful business strategy in a field of superfoods industry. The empirical part of the thesis shows the survey results of the effect of the clame superfoods and organic foods on products and its impact in consumer behaviour in the Czech Republic. The thesis then deals with the case study Jeřáb (a product containing a superfood). The thesis draws up a draft proposal for a new communication strategy of Jeřáb with the emphasis on the fact that Jeřáb is a product containing a superfood.
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Funkční potraviny a jejich uplatnění na regionálním trhu potravin
ARDOLFOVÁ, Helena
The main objective of this work was to characterize the benefits of functional foods on human health and formulate effective procedure for the implementation of the regional market for food use marketing mix. The thesis was carried out a survey, whose task was to analyze consumers' awareness of functional foods and their preferences in terms of individual marketing mix. Based on this information, was subsequently formulated recommendations to manufacturers that these foods are introduced to the market as new products.
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Small-scale production of mead and their fortifications on functional foods
MRÁZ, Petr
This work deals about Mead, its rich history, distribution, classification and tasting. Next deal with legislation and legislative standards relating to the manufacture and sale of this sweet drinks, composition and production of Mead. The experimental part is then dedicated to the different ways these fortifications (enrichment) by plant antioxidants and other biologically active substances. This could include Mead in functional foods, which would help expand the assortment and perhaps increase its popularity. The purpose of these fortifications is the addition of a beneficial effect of the foodstuff. In the discussion of these fortifications are designed in various ways, such as adding fruit juices, different kinds of herbs, propolis tinctures or pollen or the isolated compounds. For the purpose of this work was made Mead according to the instructions Research Institute beekeeping Dol and fortified by own proposal adding currant juice, mixtures of spices and propolis tinctures. This gets the product's proposed and antimicrobial properties, which are very beneficial in the period of flu and colds. Mead was still subjected to sensory analysis, which was attended by 16 tasters. The result ended very satisfactorily. Thus, there remains only to test how it will be received by the public and fortified Mead whether it will be of interest. The next chapters deals with the functional food, nutraceutiks (the active component of functional foods) and their positive effects on humans. Work is set in the rather small-scale support regionality and agro-tourism.
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