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Proposal of systems for targeted transoprt of compounds of sweet taste
 Demová, Radoslava ; Hlaváček, Viliam (referee) ; Márová, Ivana (advisor)
This bachelor thesis is focused on possibility of immobilization sweeteners on polymeric system. In the theoretical part information about sweeteners, carrier systems and the possibility of immobilization technique were reviewed. In the experimental part preparation of nanoparticles of polyhydroxybutyrate (PHB) was optimized. The PHB particles were characterized by dynamic light scattering (DLS). PHB particles were activated by plasma treatment. The surface morphology was studied using infrared and Raman spectroscopy. Immobilization of following substances with a sweet taste was tested: glucose, fructose, sucrose, mannitol, sorbitol and erythritol. From these compounds only sucrose was immobilized on PHB particles successfully. Prepared immobilized particles were exposed to the artificial stomach juice, intestinal juices and bile acids and amount of released sucrose was monitored. Finally, long-term stability prepared particles was measured and also the amount of sucrose released was determined.
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