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undergraduate thesis
Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2019. urn:nbn:hr:159:364270
Novak, Marina
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Biochemical Engineering
Laboratory for General Microbiology and Food Microbiology

Institutional repository: Repository of the Faculty of Food Technology and Biotechnology

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Novak, M. (2019). Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:364270

Novak, Marina. "Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2019. https://urn.nsk.hr/urn:nbn:hr:159:364270

Novak, Marina. "Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2019. https://urn.nsk.hr/urn:nbn:hr:159:364270

Novak, M. (2019). 'Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 14 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:364270

Novak M. Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2019 [cited 2025 January 14] Available at: https://urn.nsk.hr/urn:nbn:hr:159:364270

M. Novak, "Određivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:159:364270

Metadata
TitleOdređivanje probiotičkog potencijala odabranih sojeva bakterija mliječne kiseline
Title (english)Determination of probiotic potential of selected lactic acid bacteria strains
AuthorMarina Novak
MentorJadranka Frece (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Biochemical Engineering)
(Laboratory for General Microbiology and Food Microbiology)
Zagreb
Defense date and country2019-09-18, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Probiotici su živi mikroorganizmi čijom se uporabom u prehrani, u odgovarajućim količinama, javljaju pozitivni učinci kod korisnika. Potrebno je prilikom karakterizacije bakterija mliječne kiseline (BMK) kao probiotika ispitati niz selekcijskih kriterija koje moraju zadovoljiti kako bi bili djelotvorni. Kriteriji obuhvaćaju održivost bakterija u gastrointestinalnom sustavu te njihovu sigurnost i djelotvornost u organizmu. Cilj ovog rada bila je izolacija i karakterizacija dvaju sojeva BMK kao probiotika, te je u tu svrhu ispitano nekoliko selekcijskih kriterija. Izmjeren je stupanj preživljenja u simuliranom soku želuca i tankog crijeva, sposobnost formiranja biofilma, sposobnost autoagregacije, te hemolitička aktivnost. Izmjeren je i antioksidativni kapacitet preko sposobnosti uklanjanja DPPH slobodnih radikala i određivanjem ukupne unutarstanične koncentracije glutationa.
Abstract (english)
Probiotics are living microorganisms that are used in diet and who, in an appropriate concentration, bring positive effects for the user. When characterizing lactic acid bacteria (LAB) as probiotics, they have to satisfy a number of selection criteria in order to be effective. The criteria include viability of bacteria in the gastrointestinal system, their safety and their effectiveness in an organism. The aim of this study was to isolate and characterize two strains of LAB as probiotics. Several selection criteria were tested for this purpose. The degree of survival in simulated gastric and small intestinal juice, biofilm-forming ability, autoaggregation ability and hemolytic acivity were measured. Antioxidant capacity was measured through the ability to remove DPPH free radicals and by determining total intracellular glutathione concentration.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:364270
Study programmeTitle: Food Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-09-24 07:13:51