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- Title
Modeling the Biosurfactant Fermentation by Geobacillus stearothermophilus DSM2313.
- Authors
Czinkóczky, Réka; Németh, Áron
- Abstract
Biosurfactants are emerging molecules in the 21st century. However, their production intensification is still required for the development of feasible bioprocesses. Therefore, this paper studies a new biosurfactant-producer, namely Geobacillus stearothermophilus DSM2313 during statistical optimization via response surface methodology. After the statistical analysis the optimal pH = 7, glucose = 50 g/L and NH4NO3 = 2 g/L concentrations were determined. The biosurfactant production of the bacteria was predicted by our developed artificial neural network. The optimal harvesting time of the broth and the emulsification index values can be predicted simultaneously with the constructed artificial neural network. The best experiment was also kinetically described, and kinetic constants observed. Surface tension and emulsification activity were measured to characterize the formed products' efficiency. Based on these results, biosurfactants from Geobacillus stearothermophilus DSM2313 can act as bioemulsifier and can be applied for example in microbial enhanced oil recovery.
- Subjects
GEOBACILLUS stearothermophilus; BIOSURFACTANTS; MICROBIAL enhanced oil recovery; RESPONSE surfaces (Statistics); SURFACE tension
- Publication
Periodica Polytechnica: Chemical Engineering, 2023, Vol 67, Issue 1, p104
- ISSN
0324-5853
- Publication type
Article
- DOI
10.3311/PPch.20797