Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor

The continuous production of ethanol from beet molasses by Ca-alginate immobilized Saccharomyces cerevisiae in a packed-bed bioreactor was investigated. The temperature was maintained at 30°C and the dilution rate was 0.22 h-1. Maximum ethanol (4.62%), theoretical yield (82.9%) and volumetric productivity (10.16 gl-1h-1) were obtained from the beet molasses medium containing 10.90% total sugar with 2.0-2.4 mm diameter beads prepared from 2% (w/v) sodium alginate solution. At higher substrate concentrations, substrate was recirculated through the packed-bed bioreactor to increase yields and to decrease residual sugar content. The bioreactor system was operated at a constant dilution rate of 0.22 h-1 for 25 days without loss of original fermentation capacity. Compared to packed-bed bioreactor, lower ethanol concentration (3.94%), theoretical yield (70.7%) and productivity (8.67 gl-1h-1 ) were obtained in the continuous stirred bioreactor.

Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor

The continuous production of ethanol from beet molasses by Ca-alginate immobilized Saccharomyces cerevisiae in a packed-bed bioreactor was investigated. The temperature was maintained at 30°C and the dilution rate was 0.22 h-1. Maximum ethanol (4.62%), theoretical yield (82.9%) and volumetric productivity (10.16 gl-1h-1) were obtained from the beet molasses medium containing 10.90% total sugar with 2.0-2.4 mm diameter beads prepared from 2% (w/v) sodium alginate solution. At higher substrate concentrations, substrate was recirculated through the packed-bed bioreactor to increase yields and to decrease residual sugar content. The bioreactor system was operated at a constant dilution rate of 0.22 h-1 for 25 days without loss of original fermentation capacity. Compared to packed-bed bioreactor, lower ethanol concentration (3.94%), theoretical yield (70.7%) and productivity (8.67 gl-1h-1 ) were obtained in the continuous stirred bioreactor.

Kaynak Göster

Bibtex @ { tbtkbiology140143, journal = {Turkish Journal of Biology}, issn = {1300-0152}, eissn = {1303-6092}, address = {}, publisher = {TÜBİTAK}, year = {2001}, volume = {25}, pages = {265 - 275}, doi = {}, title = {Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor}, key = {cite}, author = {Göksungur, Yekta and Zorlu, Neşe} }
APA Göksungur, Y , Zorlu, N . (2001). Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor . Turkish Journal of Biology , 25 (3) , 265-275 . Retrieved from https://dergipark.org.tr/tr/pub/tbtkbiology/issue/11742/140143
MLA Göksungur, Y , Zorlu, N . "Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor" . Turkish Journal of Biology 25 (2001 ): 265-275 <https://dergipark.org.tr/tr/pub/tbtkbiology/issue/11742/140143>
Chicago Göksungur, Y , Zorlu, N . "Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor". Turkish Journal of Biology 25 (2001 ): 265-275
RIS TY - JOUR T1 - Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor AU - Yekta Göksungur , Neşe Zorlu Y1 - 2001 PY - 2001 N1 - DO - T2 - Turkish Journal of Biology JF - Journal JO - JOR SP - 265 EP - 275 VL - 25 IS - 3 SN - 1300-0152-1303-6092 M3 - UR - Y2 - 2021 ER -
EndNote %0 Turkish Journal of Biology Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor %A Yekta Göksungur , Neşe Zorlu %T Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor %D 2001 %J Turkish Journal of Biology %P 1300-0152-1303-6092 %V 25 %N 3 %R %U
ISNAD Göksungur, Yekta , Zorlu, Neşe . "Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor". Turkish Journal of Biology 25 / 3 (Mart 2001): 265-275 .
AMA Göksungur Y , Zorlu N . Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor. Turkish Journal of Biology. 2001; 25(3): 265-275.
Vancouver Göksungur Y , Zorlu N . Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor. Turkish Journal of Biology. 2001; 25(3): 265-275.
IEEE Y. Göksungur ve N. Zorlu , "Production of Ethanol from Beet Molasses by Ca-Alginate Immobilized Yeast Cells in a Packed-Bed Bioreactor", Turkish Journal of Biology, c. 25, sayı. 3, ss. 265-275, Mar. 2001