CONTINUOUS ETHANOL PRODUCTION FROM WOOD HYDROLYSATE BY CHEMO- STAT AND TOTAL CELL RETENTION CULTURE

Lee WG; Lee JS; Park BG; Kim MS; Park SC; Chang HN

Korean Journal of Chemical Engineering, Vol.13, No.5, 453-456, September, 1996

Lee WG, Lee JS, Park BG, Kim MS, Park SC, Chang HN

Chemostat and total cell retention cultures with internal filter system of Saccharomyces cere- visiae H1-7 were carried out to produce ethanol from wood hydrolysate. Maximum ethanol productivity obtained in a chemostat with the aeration rate of 1 vvm was 3.79 g/(L h). This was 20% higher than that in a chemostat without aeration. However, the substrate was not completely consumed at the dilution rate with the maximum productivity. The realistic productivity, which has higher than 99% conversion rate of substrate, was 2.95 g/(L h). The maximum productivity in the total cell retention culture was 6.65 g/(L h) at the dilution rate of 0.19 h^-1 and the residual glucose concentration was negligible.

Keywords:Wood Hydrolysate;Toxic Materials;Continuous Ethanol Fermentation;Realistic Producitivity;Internal Filter System

[References]

Castro FB, Hotten PM, Orskov ER, Rebeller M, Bioresour. Technol., 50(1), 25 (1994)
Chang HN, Lee WG, Kim BS, Biotechnol. Bioeng., 41, 677 (1993)
Chang HN, Ryu IK, Kim BS, Biotechnol. Adv., 12, 467 (1994)
Chung IS, Lee YY, Biotechnol. Bioeng., 27, 308 (1985)
Clark TA, Mackie KL, J. Chem. Technol. Biotechnol., 34B, 101 (1984)
Lee CW, Chang HN, Biotechnol. Bioeng., 29, 1105 (1987)
Lee WG, Lee YS, Chang HN, Chang YK, Biotechnol. Tech., 8, 817 (1994)
Marchal R, Ropars M, Pourquie J, Fayolle F, Vandecasteele JP, Bioresour. Technol., 42, 205 (1992)
Spindler DD, Wyman CE, Grohmann K, Appl. Biochem. Biotechnol., 28, 773 (1991)

[Referenced By]

[1] Castro FB, Hotten PM, Orskov ER, Rebeller M, Bioresour. Technol., 50(1), 25 (1994)

[2] Chang HN, Lee WG, Kim BS, Biotechnol. Bioeng., 41, 677 (1993)

[3] Chang HN, Ryu IK, Kim BS, Biotechnol. Adv., 12, 467 (1994)

[4] Chung IS, Lee YY, Biotechnol. Bioeng., 27, 308 (1985)

[5] Clark TA, Mackie KL, J. Chem. Technol. Biotechnol., 34B, 101 (1984)

[6] Lee CW, Chang HN, Biotechnol. Bioeng., 29, 1105 (1987)

[7] Lee WG, Lee YS, Chang HN, Chang YK, Biotechnol. Tech., 8, 817 (1994)

[8] Marchal R, Ropars M, Pourquie J, Fayolle F, Vandecasteele JP, Bioresour. Technol., 42, 205 (1992)

[9] Spindler DD, Wyman CE, Grohmann K, Appl. Biochem. Biotechnol., 28, 773 (1991)