| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:Priprava in karakterizacija akrilatnega polimera kot nosilca za imobilizacijo encima invertaze
Authors:ID Simonič, Nuša (Author)
ID Paljevac, Muzafera (Mentor) More about this mentor... New window
ID Pečar, Darja (Comentor)
Files:.pdf VS_Simonic_Nusa_2026.pdf (3,45 MB)
MD5: D93BEFACF9A55C2ECD139E633289EE71
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V okviru diplomske naloge smo pripravili visoko porozni akrilatni kopolimer na osnovi 2-hidroksietil metakrilata in N,N′-metilenbisakrilamida, ki smo ga uporabili kot nosilec za imobilizacijo encima. Kopolimer smo sintetizirali s prostoradikalsko polimerizacijo emulzije z visokim deležem notranje faze tipa olje v vodi. Kemijsko sestavo pripravljenega materiala smo proučili z infrardečo spektroskopijo s Fourierjevo transformacijo, s katero smo potrdili prisotnost strukturnih enot obeh monomerov v kopolimeru. Njegovo morfologijo in porozno strukturo smo preučili z vrstično elektronsko mikroskopijo. Pripravljeni kopolimer smo nato uporabili kot nosilec za imobilizacijo invertaze. Imobilizirani encim smo uporabili kot biokatalizator pri hidrolizi saharoze v glukozo in fruktozo. Reakcije smo izvedli pri temperaturah 30 in 35 °C ter pri različnih vrednostih pH pufra v območju od 3,5 do 5,0. Naraščanje koncentracije produktov hidrolize je pokazalo, da je invertaza po imobilizaciji na pripravljenem nosilcu ohranila katalitično aktivnost. Med preizkušenimi reakcijskimi pogoji smo najvišjo končno koncentracijo produktov dosegli pri 35 °C in pH 5,0. Dobljeni rezultati kažejo, da ima pripravljeni visoko porozni kopolimer na osnovi 2-hidroksietil metakrilata in N,N′-metilenbisakrilamida potencial za uporabo kot nosilec za imobilizacijo invertaze.
Keywords:2-hidroksietil metakrilat, N, N′-metilenbisakrilamida, poliHIPE, porozni polimer, invertaza, imobilizacija encima, hidroliza saharoze.
Place of publishing:Maribor
Year of publishing:2026
PID:20.500.12556/DKUM-100006 New window
Publication date in DKUM:22.09.2026
Views:124
Downloads:4
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:01.09.2026

Secondary language

Language:English
Title:Preparation and characterisation of an acrylate polymer as a support for invertase enzyme immobilisation
Abstract:As part of this thesis, a highly porous methacrylate copolymer based on 2-hydroxyethyl methacrylate and N,N′-methylenebisacrylamide was prepared and used as a support for enzyme immobilisation. The copolymer was synthesised by free radical polymerisation of an oil-in-water high internal phase emulsion. The chemical composition of the prepared material was investigated using Fourier transform infrared spectroscopy, which confirmed the presence of structural units derived from both monomers in the copolymer. Its morphology and porous structure were examined using scanning electron microscopy. The prepared copolymer was subsequently used as a support for invertase immobilisation. The immobilised enzyme was employed as a biocatalyst for the hydrolysis of sucrose into glucose and fructose. The reactions were carried out at 30 and 35 °C and at buffer pH values ranging from 3.5 to 5.0. The increasing concentrations of hydrolysis products demonstrated that invertase retained its catalytic activity after immobilisation on the prepared support. Among the reaction conditions tested, the highest final product concentration was obtained at 35 °C and pH 5,0. The results indicate that the prepared highly porous copolymer based on 2-hydroxyethyl methacrylate and N,N′-methylenebisacrylamide has potential for use as a support for invertase immobilisation.
Keywords:2-hydroxyethyl methacrylate, N, N′-methylenebisacrylamide, polyHIPE, porous polymer, invertase, enzyme immobilisation, sucrose hydrolysis


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