Summary
A continuous thermophilic cellulose fermentation by aCl. thermocellum-containing mixed culture was carried out in an upflow reactor for a period of 100 days. The cellulose conversion rate was finally 0.35 g.1−1.h−1. Evidence that the fermentation process was influenced by both pH and dilution rate was given by the changes of concentration of the main fermentation products, acetic acid and ethanol. The role of cellodextrins and glucose as reactive intermediates in the process of cellulose breakdown was established.
Similar content being viewed by others
References
Cowling E. B., Kirk T. K., (1976)Biotech. Bioeng. Symp., 6, 95–123
Cysewski G.R., Wilke C.R., (1976)Biotech. Bioeng., 18, 1297–1313
Johnson E.A., Sakajoh M., Halliwell G., Madia A., Demain A.L., (1982)Appl. Environ. Microbiol., 43, 1125–1132
Ljunghdahl L., Erikson K.E., (1985)Adv. Microbial Ecology, 8, 237–257
Ng T.K., Weimer P.J. and Zeikus J.G., (1977)Arch. Microbiol., 114, 1–7
Pfeffer J. T., (1974)Biotech. Bioeng., 26, 771–787
Sonnleiter B., (1983) in “Advances in Biochemical Engineering and Biotechnology”, A. Fiechter (ed), Springer Verlag, Berlin, 69–139
Wilke C.R., (1976)AIChE Symp. Ser. 158, 72, 104–120
Zeikus J. G., (1979)Enzyme Microbial Technol., 1, 243–252
Zeikus J. G., (1984) in “Trends in the Biology of Fermentations for Fuel and Chemicals”, A. Hollander (ed), vol. 18, Plenum Press, New York
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kleijntjens, R.H., de Boks, P.A. & Luyben, K.C.A.M. A continuous thermophilic cellulose fermentation in an upflow reactor by aClostridium thermocellum-containing mixed culture. Biotechnol Lett 8, 667–672 (1986). https://doi.org/10.1007/BF01025979
Issue Date:
DOI: https://doi.org/10.1007/BF01025979