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Influence of surface characteristics of cellulose carriers on ethanol production by immobilized yeast cells |
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| Affiliation: | 1. Department of Chemical Engineering, Cyprus University of Technology, Limassol 3036, Cyprus;2. Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol 3036, Cyprus;1. Department of Biotechnology, GIT, GITAM (Deemed to Be University), Rushikonda, Visakhapatnam, 530045, (A.P.), India;2. Department of Chemistry, K. L. E. Institute of Technology, Gokul, Hubballi, 580027, Karnataka, India;3. School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia;4. Department of Environment and Energy, Sejong University, Seoul, 05006, Republic of Korea;5. Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH, 45324, USA;6. Department of Chemistry, Karnatak University, Dharwad, 580 003, India |
| Abstract: | Ethanol production was carried out by growing yeast cells immobilized on porous cellulose carriers. The effects of the chemical modification of cellulose carriers on cell immobilization and ethanol production were examined with respect to ion-exchange capacity and chemical structure. The ion-exchange capacity of 0·1 meq/g-carriers had no effect on immobilization but affected ethanol production by repeated batch cultures using immobilized yeast cells. Diethylaminoethyl was a suitable function group for immobilization and ethanol production. Ethanol productivity of the 10th batch cycle with diethylaminoethyl cellulose carriers was 23% greater than that of the first batch cycle. |
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