prikaz prve stranice dokumenta Enzyme activity screening of different Ceratocystis paradoxa strains
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master's thesis
Enzyme activity screening of different Ceratocystis paradoxa strains
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. urn:nbn:hr:159:418978
Barišić, Magdalena
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

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Barišić, M. (2023). Enzyme activity screening of different Ceratocystis paradoxa strains (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:418978

Barišić, Magdalena. "Enzyme activity screening of different Ceratocystis paradoxa strains." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:418978

Barišić, Magdalena. "Enzyme activity screening of different Ceratocystis paradoxa strains." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:418978

Barišić, M. (2023). 'Enzyme activity screening of different Ceratocystis paradoxa strains', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 19 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:418978

Barišić M. Enzyme activity screening of different Ceratocystis paradoxa strains [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2023 [cited 2025 January 19] Available at: https://urn.nsk.hr/urn:nbn:hr:159:418978

M. Barišić, "Enzyme activity screening of different Ceratocystis paradoxa strains", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:159:418978

Metadata
TitleEnzyme activity screening of different Ceratocystis paradoxa strains
Title (croatian)Određivanje enzimske aktivnosti različitih sojeva plijesni Ceratocystis paradoxa
AuthorMagdalena Barišić
MentorAntonija Trontel (mentor)
Committee memberMario Novak (predsjednik povjerenstva)
Committee memberAndreja Leboš-Pavunc (član povjerenstva)
Committee memberJasna Novak (član povjerenstva)
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 country2023-05-08, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
In this work, qualitative screening of amylolytic, lignocellulolytic and proteolytic enzyme activity was performed for four strains of filamentous fungus Ceratocystis paradoxa (strains DSM 63054, CBS 101054, CBS 374.83, CBS 453.66). Screening was performed using colorimetric agar plates filled with 24 different commercial-coloured polymers. After preliminary tests, cultivations of C. paradoxa strains on different media was performed to determine if these strains have considerable cellulase, xylanase, galactanase and/or amylolytic activity. Media used in these cultivations were standard yeast extract peptone dextrose medium (YPD), and media containing starch (i.e., potato dextrose medium and medium containing waste bread) or lignocellulosic raw materials (i.e., wheat bran). Assays were performed in culture supernatants spectrophotometrically using colored substrates (red starch, azo-cmcellulose, azo-xylan, azo-galactan). Strain DSM 63054 had highest cellulase activity (1150 mU mL⁻¹ ) in medium containing wheat bran and xylanase activity (1400 mU mL⁻¹ ) determined in medium containing waste bread, amongst all tested strains. Highest galactanase activity was determined for strain CBS 101054 in medium containing wheat bran (2100 mU mL⁻¹ ), while highest amylolytic activity was determined for the same strain in medium containing waste bread (2239 mU mL⁻¹ ).
Abstract (croatian)
U ovom radu provedeno je kvalitativno određivanje amilolitčke, celulolitičke i proteolitičke aktivnosti za četiri soja plijesni Ceratocystis paradoxa (DSM 63054, CBS 101054, CBS 374.83, CBS 453.66). Određivanje enzimske aktivnosti provedeno je korištenjem agar podloga u koijima se nalazi 24 različita komercijalna obojana polimera. Nakon preliminarnih testova, sojevi plijesni C. paradoxa uzgojeni su u različitim podlogama kako bi se utvrdilo imaju li ovi sojevi značajnu celulaznu, ksilanaznu, galaktanaznu i/ili amilaznu aktivnost. Podloge korištene za uzgoj ovih plijesni su podloga koja se sastoji od kvaščevog ekstrakta, peptona i glukoze (YPD) i podloge koje sadrže škrob (tj. podloga s krumpirom i glukozom te podloga s otpadnim kruhom) ili lignocelulozne sirovine (pšenične mekinje). Određivanje enzimske aktivnosti provedeno je u supernatantima spektrofotometrijski s različitim supstratima (crveni škrob, azo-cm-celuloza, azo-ksilan i azo-galaktan). Najviša celulazna (1150 mU mL⁻¹ ) aktivnost u podlozi sa pšeničnim mekinjama te ksilanazna (1400 mU mL⁻¹ ) u podlozi sa otpadnim kruhom, određena je za soj DSM 63054, u usporedbi s drugim testiranim sojevima. Najviša galaktanazna aktivnost određena je za soj CBS 101054 u podlozi s pšeničnim mekinjama (2100 mU mL⁻¹ ), te je za isti soj određena i maksimalna amilazna aktivnost u podlozi s otpadnim kruhom (2239 mU mL⁻¹).
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:159:418978
Study programmeTitle: Bioprocess Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva (magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2024-05-15 08:05:33