TY - JOUR
T1 - Immobilization of Zymomonas mobilis with Fe2O3-modified polyvinyl alcohol for continuous ethanol fermentation
AU - Nurhayati,
AU - Cheng, Chieh Lun
AU - Nagarajan, Dillirani
AU - Chang, Jo Shu
N1 - Funding Information:
This study was financially supported by the Research Grants (MOST 105-3113-E-006-003; MOST 104-2221-E-006-227-MY3; MOST 103-2221-E-006-190-MY3) from Taiwans Ministry of Science and Technology. The Top University Grants (also known as 5 year 50 billion' grants) issued by Taiwan's Ministry of Education is also gratefully acknowledged.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/10/15
Y1 - 2016/10/15
N2 - Zymomonas mobilis cells were immobilized with a novel Fe2O3-modified polyvinyl alcohol (PVA) matrix to perform continuous ethanol fermentation with very high efficiency. The key operating parameters, such as glucose feeding concentration, dilution rate, and cells loading were optimized to achieve high bioethanol production performance at a high dilution rate and high glucose utilization efficiency. The optimal conditions for ethanol fermentation with the modified PVA immobilized cells were determined as: cell loading, 40% (w/v); glucose feeding concentration, 125 g/L; hydraulic retention time (HRT), 2 h (or 0.5 h−1 dilution rate). The bioethanol productivity was nearly doubled (31.09 g/L/h) when the PVA-immobilized cells were modified with 1% (w/v) Fe2O3. The modified PVA-immobilized cells could be utilized for more than 20 days without losing their activity.
AB - Zymomonas mobilis cells were immobilized with a novel Fe2O3-modified polyvinyl alcohol (PVA) matrix to perform continuous ethanol fermentation with very high efficiency. The key operating parameters, such as glucose feeding concentration, dilution rate, and cells loading were optimized to achieve high bioethanol production performance at a high dilution rate and high glucose utilization efficiency. The optimal conditions for ethanol fermentation with the modified PVA immobilized cells were determined as: cell loading, 40% (w/v); glucose feeding concentration, 125 g/L; hydraulic retention time (HRT), 2 h (or 0.5 h−1 dilution rate). The bioethanol productivity was nearly doubled (31.09 g/L/h) when the PVA-immobilized cells were modified with 1% (w/v) Fe2O3. The modified PVA-immobilized cells could be utilized for more than 20 days without losing their activity.
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U2 - 10.1016/j.bej.2016.07.021
DO - 10.1016/j.bej.2016.07.021
M3 - Article
AN - SCOPUS:84982702416
SN - 1369-703X
VL - 114
SP - 298
EP - 306
JO - Biochemical Engineering Journal
JF - Biochemical Engineering Journal
ER -