title: Ethanol fermentation kinetics in a continuous and closed-circulating fermentation system with a pervaporation membrane bioreactor.
abstract: The kinetics of ethanol fermentation by Saccharomyces cerevisiae was studied in a continuous and closed-circulating fermentation (CCCF) system with a polydimethylsiloxane (PDMS) pervaporation membrane bioreactor. Three sequential 500-h cycles of CCCF experiments were carried out. A glucose volumetric consumption of 3.8 g L(-1) h(-1) and ethanol volumetric productivity of 1.39 g L(-1) h(-1) were obtained in the third cycle, with a specific glucose utilization rate of 0.32 h(-1) and ethanol yield rate of 0.13 h(-1). The prolonged fermentation time and good fermentation performance indicate that the CCCF would be a feasible and promising fermentation process technology.
authors.affiliation: School of Chemical Engineering, Sichuan University, 610065 Chengdu, China.
authors.forename: Chunyan
authors.initials: C
authors.lastname: Chen
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Tang
authors.forename: Zeyi
authors.initials: Z
authors.lastname: Xiao
authors.forename: Yihui
authors.initials: Y
authors.lastname: Zhou
authors.forename: Yue
authors.initials: Y
authors.lastname: Jiang
authors.forename: Shengwei
authors.initials: S
authors.lastname: Fu
mesh_terms: D061249:Batch Cell Culture Techniques / Q000295:instrumentation*; D019149:Bioreactors / Q000382:microbiology*; D049109:Cell Proliferation; D002470:Cell Survival; D004867:Equipment Design; D019544:Equipment Failure Analysis; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005947:Glucose / Q000378:metabolism*; D008567:Membranes, Artificial; D012212:Rheology / Q000295:instrumentation*; D012441:Saccharomyces cerevisiae / Q000502:physiology*
chemical_list: D008567:Membranes, Artificial; D000431:Ethanol; D005947:Glucose