prikaz prve stranice dokumenta Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline
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undergraduate thesis
Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2011. urn:nbn:hr:159:389418
Cingesar, Filip
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Biochemical Engineering
Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology

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

Cite this document

Cingesar, F. (2011). Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:389418

Cingesar, Filip. "Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2011. https://urn.nsk.hr/urn:nbn:hr:159:389418

Cingesar, Filip. "Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2011. https://urn.nsk.hr/urn:nbn:hr:159:389418

Cingesar, F. (2011). 'Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 30 August 2024, https://urn.nsk.hr/urn:nbn:hr:159:389418

Cingesar F. Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2011 [cited 2024 August 30] Available at: https://urn.nsk.hr/urn:nbn:hr:159:389418

F. Cingesar, "Razgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2011. Available at: https://urn.nsk.hr/urn:nbn:hr:159:389418

Metadata
TitleRazgradnja polimernih ugljikohidrata s pomoću bakterija mliječne kiseline
Title (english)Degradation of polymeric carbohydrates by lactic acid bacteria
AuthorFilip Cingesar
MentorAnita Slavica (mentor)
GranterUniversity 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 country2011-07-13, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
Neke vrste bakterija mliječne kiseline, osim fermentativne, posjeduju i hidrolitičku aktivnost. Hidrolitička aktivnost ovih bakterija podrazumijeva amilolitičku, celulolitičku i/ili proteolitičku aktivnost. Ovaj dio fiziologije bakterija mliječne kiseline nije dovoljno istražen, pa zbog toga nije ni primijenjen u biotehnološkoj industrijskoj proizvodnji. Hidrolitičko-fermentativna aktivnost stanica ovih bakterija istražuje se za primjenu u jednostupanjskim bioprocesima proizvodnje različitih proizvoda iz polimernih supstrata (npr. škroba, celuloze i proteina) ili odgovarajućih sirovina. S pomoću ovih industrijskih mikroorganizama može se u jednostupanjskom bioprocesu (SSF) proizvesti mliječna kiselina koja je, između ostalog, i ishodišni spoj za sintezu polilaktata (PLA) i njihovih ko-polimera. Osim toga, istražuje se primjena ovih bakterija u visoko-učinkovitim jednostupanjskim bioprocesima proizvodnje alternativnih izvora energije. U takvom bioprocesu: (1) alge provode fotosintezu i nastaje glukoza, koja se polimerizira u molekule škroba; (2) amilolitička bakterija mliječne kiseline provodi hidrolizu škroba do glukoze i fermentaciju glukoze do mliječne kiseline; (3) uz prisustvo svjetlosti i mliječne kiseline, koja je donor elektrona, fotosintetska bakterija proizvodi vodik.
Abstract (english)
Some species of lactic acid bacteria, besides fermentative activity, posses also hydrolytic activity. The hydrolytic activity of this group of bacteria comprises amylolytic, celulolytic and/or proteolytic activity. This part of physiology of lactic acid bacteria has not been investigated in details and, therefore, implemented in biotechnological industrial production. Hydrolytic-fermentative activity of the bacterial cells has been investigated in order to be applied in single-step bioprocesses. In the bioprocesses different products can be yielded from polymeric substrates (e.g. starch, cellulose, and proteins) or corresponding raw materials. Lactic acid can be produced in the single-step bioprocess (SSF) by the industrial microorganisms. Among other uses, lactic acid is feedstock for synthesis of polylactides (PLA) and they co-polymers. Furthermore, the lactic acid bacteria are considered to be applied in highly-efficient single-step bioprocesses for production of alternative energy sources. In such bioprocess: (1) photosynthesis to glucose and polymerisation of glucose to starch is carried out by algae; (2) starch hydrolysis to glucose and fermentation of glucose to lactic acid is catalyzed by amylolytic lactic acid bacterium; (3) hydrogen is produced in the presence of light using lactic acid as electron donor by photosynthetic bacterium.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:389418
Study programmeTitle: 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 resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2017-05-18 11:47:48