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Use of antimicrobial products of animal origin in cosmetics
Puškárová, Radka ; Bokrová, Jitka (referee) ; Márová, Ivana (advisor)
The Bachelor thesis deals with characterization a whey in free and encapsulated form and its application to cosmetic industry. The theoretical part is focused on characterization of whey, especially on its antimicrobial properties, and use of this effect in selected cosmetics preparatives. Further, methods of encapsulation and particles characterization were described. In the experimental part, antimicrobial properties of whey were tested by two different methods. Whey was encapsulated into three different types of particles: liposomes, alginate and chitosan. Long-term colloid stability of particles during one and three weeks of storage in model conditions was tested. Further, particles were added into model skin creams. Long-term sedimentation stability of these emulsions was analyzed by analytical centrifuge.
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Perspektivy využití laktoferinu
Pavlík, Patrik
The thesis is focused on summarization of knowledge on lactoferrin, its sources of production, methods of isolation, biochemical properties, structure and resistance to denaturation under different conditions. At the same time, the biological effects of lactoferrin on the human body are specified, mainly focusing on antiviral effects, immune support and athletes performance enhancement. Moreover, the encapsulation methods of Lf and its delivery to the body are described here, where the most effective method of Lf, still remains the oral administration method. The current utilization of Lf in food processing and other fields is discussed. In the experimental part, food matrices suitable for 3D printable edible coating were prepared. By following encapsulation of Lf into food matrix, a functional food can be developed.
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Use of antimicrobial products of animal origin in cosmetics
Puškárová, Radka ; Bokrová, Jitka (referee) ; Márová, Ivana (advisor)
The Bachelor thesis deals with characterization a whey in free and encapsulated form and its application to cosmetic industry. The theoretical part is focused on characterization of whey, especially on its antimicrobial properties, and use of this effect in selected cosmetics preparatives. Further, methods of encapsulation and particles characterization were described. In the experimental part, antimicrobial properties of whey were tested by two different methods. Whey was encapsulated into three different types of particles: liposomes, alginate and chitosan. Long-term colloid stability of particles during one and three weeks of storage in model conditions was tested. Further, particles were added into model skin creams. Long-term sedimentation stability of these emulsions was analyzed by analytical centrifuge.
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Využití uhlíkových materiálů pro studium iontů kovů, kvantových teček a kov-vázajícího laktoferinu
Fialová, Dana
In the present thesis entitled "Utilization of carbon materials for the study of metal ions, quantum dots and lactoferrin binding metal", different forms of carbon for a specific application were used. Nanoforms of carbon, such as carbon nanotubes, reduced graphene oxide and expanded carbon were used for the isolation of heavy metal ions from aqueous solutions. These materials are characterized by high surface area and ability to bind the heavy metal ions on its surface by either physical or chemical adsorption. The influence of the interaction time and the efficiency of adsorption and concentration capacity were studied for various sorbents. This work has been also focused on the electrochemical detection of quantum dots for labelling the influenza virus, and also to detection the presence of a metal-binding protein lactoferrin. Electrochemical detection of quantum dots and lactoferrin was performed using a glassy carbon electrode. Detection of silver ions on different carbon paste electrodes was another aim of this work and the obtained results were used to study the antimicrobial effect of encapsulated silver ions to the bacterial culture Staphylococcus aureus.
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