- Tytuł:
- Determination of optimum temperatures and activationenergies of inulin hydrolysis by endo-inulinase Aspergillus Niger
- Autorzy:
- Miłek, Justyna
- Powiązania:
- https://bibliotekanauki.pl/articles/185420.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
endo-inulinase Aspergillus niger
optimum temperature
activation energy
deactivation energy
endo-inulinaza Aspergillus niger
optymalna temperatura
energia aktywacji
energia dezaktywacji - Opis:
- The paper presents a comparative analysis to determine the optimal temperatures and the activationenergies for various origin endo-inulinases fromAspergillus niger. The parameters were estimatedbased on the literature of the activity curves vs. temperature for hydrolysis of inulin. It was assumedthat both the hydrolysis reaction process and the deactivation process of endo-inulinase were first-orderreactions by the enzyme concentration. A mathematical model describing the effect of temperature onendo-inulinases fromAspergillus nigeractivity was used. Based on the comparison analysis, valuesof the activation energies Ea were in the range from23:53+/-3:20kJ/mol to50:66+/-3:61kJ/mol, thedeactivation energies Ed were in the range from88:42+/-5:03kJ/mol to142:87+/-2:75kJ/mol andthe optimum temperatures Topt were obtained in the range from317:12+/-0:83K to332:55+/-0:72forendo-inulinase A. niger.
- Źródło:
-
Chemical and Process Engineering; 2020, 41, 3; 229--236
0208-6425
2300-1925 - Pojawia się w:
- Chemical and Process Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł