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undergraduate thesis
Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2020. urn:nbn:hr:159:398708
Gavran, Maristela
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Food Processes Engineering

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

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Gavran, M. (2020). Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:398708

Gavran, Maristela. "Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2020. https://urn.nsk.hr/urn:nbn:hr:159:398708

Gavran, Maristela. "Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2020. https://urn.nsk.hr/urn:nbn:hr:159:398708

Gavran, M. (2020). 'Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 14 July 2024, https://urn.nsk.hr/urn:nbn:hr:159:398708

Gavran M. Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2020 [cited 2024 July 14] Available at: https://urn.nsk.hr/urn:nbn:hr:159:398708

M. Gavran, "Utjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:159:398708

Metadata
TitleUtjecaj tretmana pulsirajućeg svjetla na upakiranu modelnu kulturu Lactobacillus plantarum
Title (english)Effect of pulsed light treatment on the packaged Lactobacillus plantarum strain
AuthorMaristela Gavran
MentorTomislava Vukušić Pavičić (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for Food Processes Engineering)
Zagreb
Defense date and country2020-07-01, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Svrha ovog rada je promotriti utjecaj pulsirajućeg UV svjetla na modelnu kulturu Lactobacillus plantarum L73 upakiranu u PP/Ac/PVDC i PPmet/PE ambalažu pri različitim udaljenostima uzorka (1,9, 4,65, 7,23, 9,75 i 13,65 cm) te vremenima tretiranja (5, 15, 30 i 60 sekundi). Nakon tretmana je provedena diferencijalna motridbena kalorimetrija kako bi se utvrdile potencijalne promjene barijernih svojstava oba ambalažna materijala. Rezultati istraživanja pokazuju da dolazi do potpune inaktivacije bakterije L. plantarum L73 ukoliko je pakirana u PP/Ac/PVDC ambalažu, dok PPmet/PE ambalaža onemogućava redukciju bakterije zbog nepropusnosti UV zračenja. DSC analiza je pokazala da djelovanjem pulsirajućeg svjetla nije došlo do promjene u strukturi niti jednog ambalažnog materijala.
Abstract (english)
The purpose of this study is to examine the effect of pulsed UV light on Lactobacillus plantarum L73 packaged in PP/Ac/PVDC and PPmet/PE at different distances of the sample (1,9, 4,65, 7,23, 9,75 i 13,65 cm) and treatment times (5, 15, 30 i 60 seconds). Differential scanning calorimetry was done after the treatment to determine potential changes of barrier properties of both packaging. Research results show that complete inactivation of L. Plantarum L73 was achieved if the bacteria was packaged in PP/Ac/PVDC, while PPmet/PE packaging disables reduction of the bacteria because it's impermeable to UV light. DSC analysis showed that pulsed UV light didn't cause changes in the structure of neither of the packaging materials.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:398708
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 on2020-07-21 12:25:02