Optimization of alcoholic fermentation using immobilized yeast cells in calcium alginate gel
| Autor: | M Jelena Dodic, J Jovana Djuran, Zorana Rončević, A Jovana Grahovac, N Sinisa Dodic, Z Bojana Bajic, I Aleksandar Jokic |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Ethanol
Chromatography Calcium alginate General Engineering RSM Saccharomyces cerevisiae Ethanol fermentation 7. Clean energy Yeast chemistry.chemical_compound Biochemistry chemistry 8. Economic growth lcsh:Technology (General) immobilization Yeast extract lcsh:T1-995 Fermentation Ethanol fuel Response surface methodology ethanol optimization |
| Zdroj: | Acta periodica technologica (2015) (46):207-218 Acta Periodica Technologica, Vol 2015, Iss 46, Pp 207-218 (2015) |
| ISSN: | 1450-7188 |
| Popis: | Ethanol is an important industrial chemical with emerging potential as a biofuel to replace fossil fuels. In order to enhance the efficiency and yield of alcoholic fermentation, combined techniques such as cells immobilization and media optimization have been used. The aim of this study was the optimization of sodium alginate concentration and glucose and yeast extract content in the media for ethanol production with immobilized cells of Saccharomyces cerevisiae. Optimization of these parameters was attempted by using a Box-Behnken design using the response surface methodology. The obtained model predicts that the maximum ethanol content of 7.21% (v/v) is produced when the optimal values of sodium alginate concentration and initial content of glucose and yeast extract in the medium are 22.84 g/L, 196.42 g/L and 3.77 g/L, respectively. To minimize the number of yeast cells "eluted" from the alginate beads and residual glucose content in fermented media, additional two sets of optimization were made. The obtained results can be used for further techno-economic analyses of the process to select the optimum conditions of the fermentation process for industrial application.[Projekat Ministarstva nauke Republike Srbije, br. TR-31002] |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|