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undergraduate thesis
Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. urn:nbn:hr:159:907604
Cetin, Sara
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

Cite this document

Cetin, S. (2023). Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:907604

Cetin, Sara. "Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:907604

Cetin, Sara. "Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:907604

Cetin, S. (2023). 'Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 04 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:907604

Cetin S. Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2023 [cited 2025 January 04] Available at: https://urn.nsk.hr/urn:nbn:hr:159:907604

S. Cetin, "Praćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:159:907604

Metadata
TitlePraćenje odabranih parametara kvalitete enzimski koaguliranog sira s jestivim premazom na bazi proteina sirutke
Title (english)Monitoring preformance parameters of enzymatically coagulated cheese whit an edible whey protein based coating
AuthorSara Cetin
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 country2023-07-14, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
U ovom radu pratili su se parametri kvalitete enzimski koaguliranog sira na koji je nanesen jestivi premaz na bazi proteina sirutke s ili bez dodatka ekstrakta lista masline. Proizvedeni sirevi dozrijevali su 60 dana, a uzorkovanje se provodilo 1., 15., 30., 45. i 60. dan. Svim uzorcima određena je pH vrijednost, antioksidacijski kapacitet DPPH metodom, udio suhe tvari, pepela i proteina te je provedena mikrobiološka analiza sireva. Cilj je bio usporediti parametre kvalitete sireva s jestivim premazom i dodanim ekstraktom lista masline s uzorkom bez premaza. Temeljem dobivenih rezultata vidljivo je da se sirevi s jestivim premazom na bazi proteina sirutke ne razlikuju bitno od kontrolnog sira, odnosno obje vrste uzoraka pokazuju vrlo slične trendove u pogledu smanjenja pH vrijednosti i udjela pepela. Međutim, primjena jestivog premaza pokazala je pozitivne učinke na povećanje udjela proteina u siru, a premazi obogaćeni ekstraktom lista masline utjecali su na povećanje antioksidacijskog kapaciteta sireva te su pokazali antimikrobni učinak pred kraj zrenja što je rezultiralo boljom mikrobiološkom kvalitetom sireva.
Abstract (english)
In this study, the quality parameters of enzymatically coagulated cheese with an edible coating based on whey protein with or without the addition of olive leaf extract were examined. The produced cheeses were matured for 60 days, and samples were taken on days 1, 15, 30, 45, and 60. All samples were analyzed for pH value, antioxidant capacity by the DPPH method, dry matter, ash and protein content, and a microbiological analysis of the cheeses was conducted. The aim was to compare the quality parameters of cheeses with an edible coating and added olive leaf extract with samples without a coating. Based on the results obtained, it is evident that cheeses with an edible coating based on whey protein do not differ significantly from the control cheese, as both types of samples showed a decrease in pH value and ash content to very similar values. However, the application of an edible coating showed positive effects on increasing the protein content in the cheese, and coatings enriched with olive leaf extract influenced the increase in the antioxidant capacity of the cheeses and exhibited antimicrobial effects towards the end of maturation, resulting in better microbiological quality of the cheeses.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:907604
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 on2024-05-06 11:41:30