Bakterijska nanoceluloza

undergraduate thesis

• Title (english): Bacterial nanocelulose
• Author: Lucija Mlakić
• Mentor: Sunčica Beluhan (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology); Zagreb
• Defense date and country: 2020-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Primjena biomase za razvoj biobaziranih proizvoda postala je svakodnevica u evolucijskom metaboličkom inženjeringu. Bakterijska nanoceluloza (BNC) koju proizvodi združena kultura kvasca i bakterija je nova alternativa polimerima fosilnog podrijetla. Zahvaljujući tome proizvodnja BNC postala je izrazito popularna zbog svojih ekološki prihvatljivih svojstava. BNC je obnovljiv prirodni polisaharid zbog jedinstvenih karakteristika poput visokog stupnja kristaliničnosti, visoke čistoće, visokog kapaciteta zadržavanja vode, visoke mehaničke čvrstoće i poboljšane biokompatibilnosti. Zbog tih izvanrednih svojstava, BNC može poslužiti kao idealna sirovina za razvoj različitih indrustrijskih proizvoda. Celulozni nanomaterijali pružaju novu i održivu platformu za proizvodnju materijala visokih performansi koje omogućava nanotehnologija. BNC je visoko kristalična sirovina i građena je od čiste celuloze bez lignina, hemiceluloze i pektina. Ovaj ekstracelularni biopolimer ima specifičnu ulogu kao izvor rezervne energije, zaštitni biofilm, pomaže u uspostavljanju simbioze, osmotskoj prilagodbi i omogućuje različitim rodovima mikroorganizmima da djeluju, prilagode se, umnožavaju i učinkovito opstanu u promjenjivim okolišnim uvjetima.

Abstract (english)

Application of biomass for the development of biobased products has become a routine agenda in evolutionary metabolic engineering. Bacterial nanocellulose (BNC), which is produced by a symbiotic culture of yeast and bacteria, is a new alternative to conventional polymers based on petroleum. Because of that, the production of BNC is becoming increasingly popular owing to its environmentally friendly properties. BNC is renewable natural polysaccharide due to its remarkable properties such as a high degree of crystallinity, high purity, high water retention capacity, high mechanical strength, and enhanced biocompatibility. Favoured with those extraordinary properties, BC could serve as ideal biomass for the development of various industrial products. Cellulosic nanomaterials provide a novel and sustainable platform for the production of high performance materials enabled by nanotechnology. BNC is a highly crystalline material and contains pure cellulose without lignin, hemicellulose, and pectin. These extracellular biopolymer plays specific roles as energy reserve material, protective agent, aid in cell functioning, the establishment of symbiosis, osmotic adaptation and supports the microbial genera to function, adapt, multiply and survive efficiently under changing environmental conditions.

• Keywords: bakterijska nanoceluloza; biosinteza; održiva proizvodnja; primjena
• Keywords (english): bacterial nanocellulose; biosynthesis; sustainable production; application
• Language: croatian
• URN:NBN: urn:nbn:hr:159:207630
• Study programme: Title: Biotechnology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-10-22 13:38:15