| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:Koimobilizacija alkohol dehidrogenaze in kofaktorja ß-NAD na modificirane magnetne nanodelce : magistrsko delo
Authors:ID Voda, Eva (Author)
ID Leitgeb, Maja (Mentor) More about this mentor... New window
ID Vasić, Katja (Comentor)
Files:.pdf MAG_Voda_Eva_2022.pdf (2,82 MB)
MD5: 85BFFA1368236A4383D99241F9917902
PID: 20.500.12556/dkum/40eb4319-ee6f-4155-afcd-5f9047c776fe
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Encim ADH je precej nestabilen, kar omeji njegovo uporabo v industriji, zato je primarni cilj izboljšanje stabilnosti le-tega. To lahko dosežemo z imobilizacijo encima na ustrezne nosilce. S tem ne samo izboljšamo stabilnost, ampak tudi omogočimo odstranitev encima iz reakcijskega medija in zagotovimo ponovno uporabo, s čemer zelo zmanjšamo stroške reakcije. Magistrsko delo prikazuje študijo koimobilizacije encima alkohol dehidrogenaze (ADH) in kofaktorja β-nikotinamid adenin dinukleotida (β-NAD) na magnetne nanodelce, modificirane s karboksimetil dekstranom (CMD). Magnetne nanodelce smo pred koimobilizacijo aktivirali z uporabo mrežnega povezovalca epiklorohidrina (EClH). Pred nadaljnjimi študijami smo morali najti optimalne pogoje imobilizacije, in sicer s spremljanjem aktivnosti ADH ter učinkovitosti imobilizacije. Učinkovitost imobilizacije smo določili s pomočjo Bradfordove metode za določevanje koncentracije totalnih proteinov. Rezultati magistrskega dela kažejo, da z imobilizacijo ADH zelo izboljšamo njeno termično stabilnost, je primerna za shranjevanje pri 4 °C in dobro ohrani aktivnost pri ponovni uporabi.
Keywords:koimobilizacija, alkohol dehidrogenaza, β-NAD kofaktor, magnetni nanodelci, karboksimetil dekstran
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[E. Voda]
Year of publishing:2022
Number of pages:1 spletni vir (1 datoteka PDF (X, 46 f.))
PID:20.500.12556/DKUM-81944 New window
UDC:544.567:620.3(043.2)
COBISS.SI-ID:116182019 New window
Publication date in DKUM:13.07.2022
Views:818
Downloads:66
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share



Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:21.06.2022

Secondary language

Language:English
Title:Coimobilization of alcohol dehydrogenase and ß-NAD cofactor to modified magnetic nanoparticles
Abstract:The enzyme alcohol dehydrogenase is rather unstable which limits its use in industry; therefore there is the desire to improve its stability. This can be achieved by immobilizing the enzymes onto appropriate carriers. This does not only improve the stability of the enzyme; it also allows enzymes to be removed from the reaction stream and then be reused, thus greatly reducing the reaction costs. The master's thesis presents a study of the co-mobilization of enzyme alcohol dehydrogenase (ADH) and β-nicotineamide adenine dinucleotide (β-NAD) cofactor onto magnetic nanoparticles modified with carboxymethyl dextran (CMD). Magnetic nanoparticles need to be activated before the co-mobilization which is achieved using a cross-linking agent epichlorohydrin (EClH). Prior to further studies, we had to find optimal conditions for immobilization by monitoring the activity of alcohol dehydrogenase and the immobilization efficiency. The immobilization efficiency was determined using the Bradford method. The results of the master's thesis show that co-mobilization of ADH greatly improves its thermal and storage stability and has a good residual activity after reusing it.
Keywords:coimmobilization, alcohol dehydrogenase, β-NAD cofactor, magnetic nanoparticles, CM-dextran


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica