prikaz prve stranice dokumenta Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane
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master's thesis
Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2013. urn:nbn:hr:159:226630
Musa, Marijana
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Food Packaging

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

Cite this document

Musa, M. (2013). Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:226630

Musa, Marijana. "Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2013. https://urn.nsk.hr/urn:nbn:hr:159:226630

Musa, Marijana. "Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2013. https://urn.nsk.hr/urn:nbn:hr:159:226630

Musa, M. (2013). 'Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 19 November 2024, https://urn.nsk.hr/urn:nbn:hr:159:226630

Musa M. Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2013 [cited 2024 November 19] Available at: https://urn.nsk.hr/urn:nbn:hr:159:226630

M. Musa, "Utjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2013. Available at: https://urn.nsk.hr/urn:nbn:hr:159:226630

Metadata
TitleUtjecaj ultrazvuka visoke snage na propusnost kisika kroz polipropilenski film za pakiranje hrane
Title (english)Effect of high power ultrasound on oxygen permeability trough polypropilene film for food packaging
AuthorMarijana Musa
MentorKata Galić (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for Food Packaging)
Zagreb
Defense date and country2013-09-30, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Polimerna ambalaža koristi se za pakiranje hrane. Postoje različiti tipovi ambalažnih materijala i ovisno o vrsti proizvoda i karakteristikama istog odabire se najpogodnijij tip materijala. Važan parametar koji pomaže u odabiru adekvatne ambalaže je permeacija kisika. Permecija kisika govori je li neki ambalažni materijal pogodan za pakiranje namirnice ili nije, ovisno o osjetljivosti namirnice na doticaj s kisikom i mogućnost pojave oksidacijskog kvarenja prilikom skladištenja. U ovom su radu koekstrudirani polipropilenski filmovi bili tretirani ultrazvukom (UZ) visoke snage amplitudama 50, 75 i 100% kroz vrijeme tretiranja 2, 4 i 6 minuta. Cilj ovog rada bio je odrediti permeaciju kisika kroz koekstrudirani polipropilenski (PPcoex) film prije i nakon tretmana s UZ. pomoću izmjerenih parametara računati su koeficijenti difuzije, topljivosti i permeacije kisika. Iz dobivenih rezultata uočeno je da se permeabilnost (P) polipropilenskih filmova povećava.
Abstract (english)
Polymer packaging is used for food packaging. There are various types of packaging materials and depending on the type and characteristics of the product, the most suitable type is being selected for each product. An important parameter that helps us in selecting the appropriate packaging is the parameter of oxygen permeation. . Oxygen permeation tell us whether a packaging material is suitable for food packaging or not, depending on the O 2 sensitivity of food and the possibility of oxidative deterioration during storage. In this paper, co-extruded polypropylene films (PPcoex) were treated with high-power ultrasonic (UZ) amplitude 50, 75 and 100%, and the duration of treatment of 2, 4 and 6 minutes. The aim of this study was to determine the permeation of oxygen through PPcoex film before and after UZ treatment. Using the measured parameters coefficients of diffusion, solubility and permeability coefficient were calculated. Out of given results it was discovered that permeability (P) of polypropylene films is increased.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:226630
Study programmeTitle: Food Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2017-05-04 10:36:15