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undergraduate thesis
Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2014. urn:nbn:hr:159:639342
Lešić, Tanja
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

Lešić, T. (2014). Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:639342

Lešić, Tanja. "Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2014. https://urn.nsk.hr/urn:nbn:hr:159:639342

Lešić, Tanja. "Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2014. https://urn.nsk.hr/urn:nbn:hr:159:639342

Lešić, T. (2014). 'Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 21 December 2024, https://urn.nsk.hr/urn:nbn:hr:159:639342

Lešić T. Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2014 [cited 2024 December 21] Available at: https://urn.nsk.hr/urn:nbn:hr:159:639342

T. Lešić, "Analiza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2014. Available at: https://urn.nsk.hr/urn:nbn:hr:159:639342

Metadata
TitleAnaliza ekstraktivnih tvari i ligina u bukovoj piljevini, pšeničnoj slami i kukuruznim oklascima
Title (english)Analysis of extratives and lignin in beech sawdust, wheat straw and corn cobs
AuthorTanja Lešić
MentorVlatka Petravić Tominac (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 country2014-07-10, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
Za analizu su odabrane bukova piljevina, pšenična slama i kukuruzni oklasci, jer su lako dostupni u velikim količinama u kontinentalnom dijelu Hrvatske i predstavljaju potencijalne lignocelulozne sirovine za budući razvoj biotehnološke proizvodnje. Nakon usitnjavanja, uzorci su prosijani kroz sito veličine otvora 1 mm i analizirani su udjeli suhe tvari, pepela, sirovih proteina, vodenog i etanolnog ekstrakta te topljivog, netopljivog i ukupnog lignina. Uzorci su sadržavali 0,94 - 6,30 % pepela te 0,46 - 2,88% proteina u suhoj tvari. Najviše vodenog ekstrakta i etanolnog ekstrakta je sadržavala pšenična slama, dok je najveći omjer vodenog ekstrakta i etanolnog ekstrakta zabilježen u bukovoj piljevini. Udjeli ukupnog lignina u suhoj tvari pšenične slame, kukuruznih oklasaka i bukove piljevine iznosili su 18.63 %, 18.22 % odnosno 16.52%. Udio netopljivog lignina u ukupnom ligninu bio je najmanji u pšeničnoj slami, a najveći bukovoj piljevini.
Abstract (english)
Beech sawdust, wheat straw and corn cobs are chosen for analysis because they are easily available in large amounts in the continental part of Croatia and represent potential lignocellulosic raw materials for future development of biotechnological production. After size reduction and passing of particles through 1-mm sieves, the samples were analysed for dry weight, ash, crude protein, water extract and ethanol extract as well as soluble, insoluble and total lignin. The samples contained 0.94 - 6.30 % of ash and 0.46 - 2.88 % of proteins on dry weight basis. Wheat straw had both the highest water extract and ethanol extract, while the highest ratio of water extract and ethanol extract was found for beech sawdust. Contents of total lignin on dry weight basis for wheat straw, corn cobs and beech sawdust were 18.63 %, 18.22 % and 16.52 %, respectively. Portion of insoluble lignin in total lignin was the lowest for wheat straw and the highest for beech sawdust.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:639342
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 on2017-04-26 12:28:31