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undergraduate thesis
Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. urn:nbn:hr:159:720793
Miletić, Ivan
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Technology of Milk and Milk Products

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

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Miletić, I. (2022). Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:720793

Miletić, Ivan. "Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. https://urn.nsk.hr/urn:nbn:hr:159:720793

Miletić, Ivan. "Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. https://urn.nsk.hr/urn:nbn:hr:159:720793

Miletić, I. (2022). 'Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 29 July 2024, https://urn.nsk.hr/urn:nbn:hr:159:720793

Miletić I. Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2022 [cited 2024 July 29] Available at: https://urn.nsk.hr/urn:nbn:hr:159:720793

I. Miletić, "Praćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:159:720793

Metadata
TitlePraćenje kvalitete kobiljeg mlijeka tijekom skladištenja u zamrznutom obliku
Title (english)Monitoring the quality of mare's milk during storage in frozen form
AuthorIvan Miletić
MentorIrena Barukčić Jurina (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for Technology of Milk and Milk Products)
Zagreb
Defense date and country2022-06-29, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Cilj ovoga rada bio je odrediti kako skladištenje u zamrznutom obliku, u vremenskom periodu od 6 mjeseci, utječe na kvalitetu kobiljeg mlijeka; prije svega na fizikalno kemijska svojstva kao što su pH vrijednost, TDS i električna vodljivost, distribucija veličine čestica i strukturne promjene sastojaka te promjene u antioksidacijskoj aktivnosti (FRAP, DPPH) i sadržaju ukupnih fenola. Istraživanje je pro- vedeno na uzorku svježeg kobiljeg mlijeka te na uzorcima skladištenim u zamrznutom stanju na -18 °C svaki mjesec kroz 6 mjeseci skladištenja. Temeljem dobivenih rezultata može se zaključiti kako skladištenjem u zamrznutom stanju dolazi do određenih promjena u kvaliteti kobiljeg mlijeka koje uključuju povišenje pH vrijednosti, električne vodljivosti i TDS vrijednosti, denaturaciju određenog dijela proteina zabilježenu NIR spektroskopijom i SDS-PAGE analizom te promjene u veličini čestica. Isto tako, zabilježen je pad antioksidacijskog potencijala provođenjem FRAP i DPPH metoda te smanjenje udjela ukupnih fenola u kobiljem mlijeku.
Abstract (english)
The aim of this study was to determine how storage in the frozen state, for a period of 6 months, affects the quality of mare's milk; primarily on physicochemical properties such as pH, TDS and electrical conductivity, particle size distribution and structural changes of ingredients, and changes in antioxidant activity (FRAP, DPPH) and total phenol content. The research was conducted on a sample of fresh mare's milk and on samples stored in a frozen state at -18 °C every month for 6 months of storage. Based on the obtained results, it can be concluded that freezing storage causes certain changes in mare's milk quality, including increase in pH, electrical conductivity and TDS values, denaturation of protein recorded by NIR spectroscopy and changes in particle size. Also, a decrease in the antioxidant potential was recorded by implementing FRAP and DPPH methods and a decrease of total phenols in mare's milk.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:720793
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 Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2022-10-05 12:10:26