Istraživanje mikrobiološke čistoće recikliranih vlakana

undergraduate thesis

• Author: Petra Željković
• Mentor: Ivana Bolanča Mirković (mentor)
• Committee member: Krešimir Dragčević (član povjerenstva)
• Committee member: Ivana Bolanča-Mirković (član povjerenstva)
• Committee member: Rahela Kulčar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2019-07-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Sigurnost recikliranih vlakana u pakiranjima prehrambenih proizvoda trenutno je tema o kojoj se puno raspravlja. Do sada su se rizici mikrobiološke kvalitete recikliranih vlakana pripisivali samo kloriranim organskim spojevima, teškim metalima i hlapljivim organskim spojevima koji se pojavljuju u mnogo većim količinama nego u primarnim vlaknima. Reciklirana vlakna koja sadrže tragove hrane, škroba i premaza također služe kao dobar supstrat za rast mikroorganizama tijekom prikupljanja, skladištenja i obrade. Cilj ovog rada je procjena trenutne metodologije koja se koristi za istraživanje mikroflore pulpe te prikazati mikrobiološku kvalitetu recikliranih vlakana. Dat će se ukupan broj mikroorganizama (bakterija i plijesni) za različite materijale.

Abstract (english)

The safety of recycled fibers in food packaging is currently the topic of a lot of rumbling. Until now, the risks of microbiological quality of recycled fibers are attributed only to chlorinated organic compounds, heavy metals and volatile organic compounds that appear in much larger quantities than in primary fibers. Recycled fibers containing traces of food, starch, and coatings also serve as a good substrate for growth of microorganisms during collection, storage and processing. The aim of this paper is to determine the methodology used to study the pulp microflora and to show the microbiological quality of recycled fibers. The total number of microorganisms (bacteria and moulds) will be provided for different materials.

• Keywords: reciklirana vlakna; mikrobiološka čistoća; teški metali
• Keywords (english): recycled fiber; microbial purity; heavy metals
• Language: croatian
• URN:NBN: urn:nbn:hr:216:891434
• Study programme: Title: Printing technology, course Technical - technological; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka grafičke tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-16 15:47:17