Pages

Adekvatan unos kalcija i fosfora prehranom u funkciji smanjenja razvoja sekundarnoga hiperparatireoidizma kod bolesnika na hemodijalizi
Adekvatan unos kalcija i fosfora prehranom u funkciji smanjenja razvoja sekundarnoga hiperparatireoidizma kod bolesnika na hemodijalizi
Ivica Vrdoljak
Svrha rada bila je utvrditi kako različiti načini pripreme i termičke obrade namirnica utječu na sadržaj kalcija, fosfora i proteina u gotovoj hrani. Dobiveni rezultati primijenjeni su u izradi preporuka i pripremi jelovnika koji optimiziraju sadržaj fosfora, kalcija i proteina za pacijente na hemodijalizi. Standardnim AOAC metodama određen je sadržaj suhe tvari, proteina, kalcija i fosfora u krumpiru, svježoj i smrznutoj mrkvi, smrznutim mahunama, piletini, junetini, svinjetini,...
Advanced extraction techniques and encapsulation of bay laurel (Laurus nobilis L.) leaf phenols
Advanced extraction techniques and encapsulation of bay laurel (Laurus nobilis L.) leaf phenols
Erika Dobroslavić
Laurel leaf (Laurus nobilis L.) is a rich source of phenols, which have numerous beneficial effects on health. To maximize the yield of phenols and increase their stability and bioavailability for use in functional products, three advanced extraction techniques and two encapsulation methods were tested and optimized. Pressurized liquid extraction proved to be the most desirable method for achieving maximum yield and antioxidant activity of extracts with low energy, time, and solvent...
Advanced polysaccharides extraction techniques of Adriatic Sea algae
Advanced polysaccharides extraction techniques of Adriatic Sea algae
Ana Dobrinčić
Fucoidans, sulfated polysaccharides from the brown algae Fucus virsoides and Cystoseira barbata, show a wide range of biological activities (antioxidant, antibacterial, and antifungal) which depend on their chemical structure (sulfate group, fucose and uronic acid content, monosaccharide composition, molecular weight) and are related to the algal species, extraction technique and parameters, as well as pre-treatment used to remove interfering compounds. In addition to a higher yield compared...
Analitički aspekt odabranih ß2-adrenergičkih agonista u tkivu jetre i genotoksikološki učinci na biološkim test sustavima
Analitički aspekt odabranih ß2-adrenergičkih agonista u tkivu jetre i genotoksikološki učinci na biološkim test sustavima
Ana Vulić
Primjenom validirane LC-MS/MS metode određene su razine ostataka klenbuterola i salbutamola u tkivu jetre nakon subkroničnog tretmana te je potvrđena kumulacija kroz vremensko razdoblje u trajanju od 15 do 30 dana nakon završetka tretmana. Genotoksikološka ispitivanja pokazala su mutageno i prooksidativno djelovanje klenbuterola. Komet testom i analizom kromosomskih aberacija utvrđen je genotoksični učinak klenbuterola i salbutamola dok je genotoksični učinak 4-ADBA utvrđen samo...
Antifungalni uĉinak eteriĉnih ulja na plijesni iz roda Aspergillus u in vitro i in situ uvjetima
Antifungalni uĉinak eteriĉnih ulja na plijesni iz roda Aspergillus u in vitro i in situ uvjetima
Darja Sokolić-Mihalak
Cilj ovog rada bio je ispitati antifungalna svojstva eteričnih ulja majčine dušice, čajevca i cedra, te njihov utjecaj na sintezu mikotoksina, u cilju potencijalne mogućnosti uporabe kao ekološki prihvatljivih konzervansa u zaštiti hrane od kvarenja plijesnima Aspergillus carbonarius, Aspergillus flavus i Aspergillus parasiticus. OdreĎivanjem minimalne inhibitorne koncentracije (MIK) i minimalne fungicidne koncentracije (MFK), te odreĎivanjem učinka eteričnih ulja majčine...
Apoptoticke promjene u kulturi životinjskih stanica i mehanizmi djelovanja endogenih i egzogenih faktora
Apoptoticke promjene u kulturi životinjskih stanica i mehanizmi djelovanja endogenih i egzogenih faktora
Kristina Radoševic
Pročišćeni i izolirani protein iz svinjskog mozga identificiran je kao kiseli fibroblastni faktor rasta. Sirovi ekstrakt svinjskog mozga ima pozitivni učinak na rast stanica u primarnoj kulturi ovarija i uterusa štakora te u CCO i CHO-K1 staničnim linijama. Ispitano je djelovanje 17-etinilestradiola i dietilstilbestrola na rast CCO i CHO-K1 stanica. Oba spoja, pri koncentracijama 1 μg/mL i veće, djeluju citotoksično. 17-Etinilestradiol inducira staničnu smrt procesom apoptoze, dok...
Application of hurdle technology and 3D printing in the development of strawberry based functional food
Application of hurdle technology and 3D printing in the development of strawberry based functional food
Anica Bebek Markovinović
Strawberry (Fragaria x Ananassa Duch.) is valuable fruit for functional juices production, but its quality is affected by heat treatment. In this work, the effects of hurdle technology as an alternative to thermal treatment were investigated in combination of pulsed electric field and high-power ultrasound as non-thermal alternatives, with the aim of producing functional fruit juices of higher nutritional, biological and sensory quality. Juices processed in this way were used to develop...
Application of natural deep eutectic solvents in isolation of anthocyanins and biocatalysis with lipase
Application of natural deep eutectic solvents in isolation of anthocyanins and biocatalysis with lipase
Manuela Panić
In this dissertation, 15 natural deep eutectic solvents were successfully prepared and applied for developing an eco-friendly method for extraction of anthocyanins and lipase-catalyzed (R)-1-phenylethanol synthesis. Also, the biological activity of prepared grape pomace extracts was evaluated. With natural deep eutectic solvents efficiency of the process was increased in comparison with conventional processes. Extraction and biocatalytic process were optimised using the response surface...
Application of non-thermal techniques as an alternative to sulfur dioxide in production of wine
Application of non-thermal techniques as an alternative to sulfur dioxide in production of wine
Katarina Lukić
The aim of this study was to investigate the influence of non-thermal techniques (high power ultrasound, high hydrostatic pressure, and high voltage electrical discharge plasma – cold plasma) on the overall quality of red and white wines. The research was conducted on Cabernet Sauvignon and Graševina wines (Vitis vinifera L.), produced with a reduced concentration of sulfur dioxide. Optimal process parameters were determined for each technique with the aim of preserving and improving wine...
Bioelektrička impedancijska analiza pri utvrđivanju promjena kvalitete odmrznutog ribljeg mišićja
Bioelektrička impedancijska analiza pri utvrđivanju promjena kvalitete odmrznutog ribljeg mišićja
Sanja Vidaček
Cilj rada bio je ispitati metodu bioelektričke impedancijske analize pri utvrđivanju promjena kvalitete riba vrsta Dicentrarchus labrax (brancin) i Oncorhynchus mykiss (kalifornijska pastrva) podvrgnutih različitim uvjetima smrzavanja (različita brzina i broj ciklusa). Rezultati su pokazali da se izmjerama reaktancije pri srednjim i visokim frekvencijama može utvrditi razlika između svježih i odmrznutih uzoraka kod obje vrste riba. Prikazom odnosa rezistencije i reaktancije...
Bioencapsulation as a sustainable delivery of active agents for plant nutrition/protection and production of functional foods
Bioencapsulation as a sustainable delivery of active agents for plant nutrition/protection and production of functional foods
Slaven Jurić
The encapsulation method ensures the protection and targeted delivery of active agents in plant production. The slow and controlled release provides higher efficiency and better environmental safety. Microparticles containing biological and chemical agents were prepared to act as delivery systems in food production via application in conventional and/or hydroponic cultivation of selected plants. Treatments revealed a significant influence of microparticles on the synthesis of plant secondary...
Biokatalitička sinteza (S)-2-hidroksipropiofenona u različitim tipovima reaktora
Biokatalitička sinteza (S)-2-hidroksipropiofenona u različitim tipovima reaktora
Davor Valinger
Provedena je analiza biokatalitičke sinteze (S)-2-hidroksipropiofenona iz benzaldehida i acetaldehida katalizirana enzimom benzoilformijat dekarboksilazom (BFD) iz bakterije Pseudomonas putida u različitim tipovima reaktora (kotlasti, ultrafiltracijski enzimski membranski i mikroreaktorima). Ispitana je kinetika reakcije u kotlastom reaktoru i mikroreaktorima, te efektivna difuzivnost benzaldehida, acetaldehida i BFD enzima u mikroreaktoru. Na temelju rezultata postavljeni su matematički...

Pages