prikaz prve stranice dokumenta Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima
  Download
PDF 516.11 KB
undergraduate thesis
Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. urn:nbn:hr:159:081184
Žugec, Tea
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Chemistry and Biochemistry
Laboratory for Physical Chemistry and Corrosion

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

Cite this document

Žugec, T. (2023). Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:081184

Žugec, Tea. "Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:081184

Žugec, Tea. "Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:081184

Žugec, T. (2023). 'Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 21 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:081184

Žugec T. Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2023 [cited 2025 January 21] Available at: https://urn.nsk.hr/urn:nbn:hr:159:081184

T. Žugec, "Spektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:159:081184

Metadata
TitleSpektrofluorimetrijsko određivanje koncentracije riboflavina u energetskim pićima
Title (english)Spectrofluorimetric determination of concentration of riboflavin in energy drinks
AuthorTea Žugec
MentorFilip Šupljika (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Chemistry and Biochemistry)
(Laboratory for Physical Chemistry and Corrosion)
Zagreb
Defense date and country2023-09-08, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
Riboflavin (vitamin B2) je esencijalan vitamin važan za normalno funkcioniranje metaboličkih procesa u organizmima. Zahvaljujući strukturi molekule, riboflavin ima sposobnost fluorescencije. Prirodni izvori riboflavina su hrana biljnog podrijetla, mlijeko i jaja, a može se pronaći i u komercijalnim prehrambenim proizvodima poput energetskih napitaka. Cilj ovog rada bio je odrediti koncentraciju riboflavina u energetskim pićima pomoću spektrofluorimetrijske metode. Spektrofluorimetrija je korištena zbog svoje jednostavnosti i osjetljivosti te zbog fluorescencije riboflavina. Dobiveni rezultati, odnosno izmjerene koncentracije, pokazuju da je spektrofluorimetrijska metoda učinkovita metoda za određivanje koncentracije riboflavina u energetskim pićima. Osim samih izmjerenih koncentracija, koje se u pravilu poklapaju s deklariranim, točnost metode korištene u svrhu određivanja koncentracije riboflavina u energetskim pićima potvrđuju i rezultati provedene metode dodatka standarda.
Abstract (english)
Riboflavin (vitamin B2) is an essential vitamin important for normal functioning of metabolic processes in organisms. Due to the structure of molecule, riboflavin has ability to fluoresce. Natural sources of riboflavin are food of plant origin, milk and eggs, however it can be found in commercial food products such as energy drinks. The aim of this study was to determine concentration of riboflavin in energy drinks using the spectrofluorimetric method. Spectrofluorimetry is used because of its simplicity and sensitivity and because of fluorescence of riboflavin. The results obtained, i.e. the concentrations measured in this study show that the spectrofluorimetric method is an effective method for determination of concentrations of riboflavin in energy drinks. Besides the measured concentrations that generally coincide with declared ones, accuracy of the method used to determine the concentration of riboflavin in energy drinks is confirmed by results of the standard addition method.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:081184
Study programmeTitle: Biotechnology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2024-04-16 08:12:44