Effect of different conditions on Saccaromyces cerevisiae immobilization onto sugar beet pulp in ethanol production
The use of yeast cells immobilized on sugar beet pulp as support for ethanol production employs a cheap and simple method of retaining high cells densities. The present work describes the effect of yeast concentration and ammount of support on immobilization of Saccharomyces cerevisiae onto sugar be...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2012
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| Sorozat: | Review of faculty of engineering : analecta technica Szegedinensia
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| Kulcsszavak: | Mérnöki tudományok |
| Online Access: | http://acta.bibl.u-szeged.hu/11932 |
| Tartalmi kivonat: | The use of yeast cells immobilized on sugar beet pulp as support for ethanol production employs a cheap and simple method of retaining high cells densities. The present work describes the effect of yeast concentration and ammount of support on immobilization of Saccharomyces cerevisiae onto sugar beet pulp (SBP). Further, the efficiency of immobilized biocatalyst for batch ethanol fermentation of sugar beet thin juice was investigated with goal to examine the optimum conditions of its potential application. The hvdratet SBP showed highes cells retention capacity of 0.117 g/g. A maximum sugar conversion of 97.69%, ethanol concentration of 75.66 g/I, ethanol yield per consumed sugar of 0.499 g/g (equal to 97.71% of its theoretical value) was achieved in the batch fermentation of thin juice substrate. This study demonstrates that the efficient ethanol fermentation from sugar beet thin juice using S. cerevisiae immobilized by natural adhesion on sugar beet pulp (SBP) is possible even without any nutrient supplementation. The novelty of the approach lies in the effectiveness of exploitation of thin juice and sugar beet pulp with purpose to obtain efficient ethanol production from and to lower high operating cost. |
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| Terjedelem/Fizikai jellemzők: | 167-172 |
| ISSN: | 1788-6392 |