diplomsko delo univerzitetnega študijskega programa I. stopnje
Abstract
Moka je živilo, ki ga najdemo v vsakem gospodinjstvu in je v vsakodnevni uporabi. Proučili smo vpliv različnih parametrov, ki vplivajo na inaktivacijo encimov v moki z uporabo superkritičnega ogljikovega dioksida (SC CO2) (čas izpostavitve moke v SC CO2, tlak in dekompresija). Graham moko smo izpostavili v SC CO2 pri različnih pogojih z namenom inaktivacije encimov, ki so prisotni v moki. S pomočjo SC CO2 smo inaktivirali 5 različnih encimov. Stopnjo inaktivacije encimov smo določili na osnovi aktivnosti določenega encima pred in po izpostavitvi v SC CO2. Dokazali smo, da se aktivnost encimov in s tem tudi koncentracija celokupnih proteinov znižuje z naraščanjem časa in tlaka izpostavitve moke v SC CO2.
Keywords
amilaza;lipaza;peroksidaza;proteaza;polifenol oksidaza;encimi;superkritični ogljikov dioksid;inaktivacija;graham moka;diplomske naloge;
Data
Language: |
Slovenian |
Year of publishing: |
2020 |
Typology: |
2.11 - Undergraduate Thesis |
Organization: |
UM FKKT - Faculty of Chemistry and Chemical Engineering |
Publisher: |
[D. Petrič] |
UDC: |
577.151.4:664.23(043.2) |
COBISS: |
33444611
|
Views: |
550 |
Downloads: |
98 |
Average score: |
0 (0 votes) |
Metadata: |
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Other data
Secondary language: |
English |
Secondary title: |
Optimization of enzyme inactivation in graham flour |
Secondary abstract: |
Flour is a food found in every household and is in daily use. We investigated the influence of all parameters affecting inactivation of enzymes (exposure time, pressure and decompression). Using supercritical carbon dioxide (SC CO2), we inactivated 5 different enzymes in the flour for which we performed specially tailored measurements. We chose graham flour because it contains higher protein values, where is easier to monitor the change in protein concentration. We have shown that the activity of enzymes and thus the concentration of total proteins decreases with increasing time and pressure of flour exposure in SC CO2 in high pressure batch reactor. |
Secondary keywords: |
amylase;lipase;peroxidase;protease;polyphenol oxidase;enzymes;supercritical carbon dioxide;inactivation;graham flour; |
Type (COBISS): |
Bachelor thesis/paper |
Thesis comment: |
Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo |
Pages: |
VIII, 39 str. |
ID: |
12022423 |