Crisp and Fuzzy Optimization of a Fed-Batch Fermentation for Ethanol Production

2003 ◽  
Vol 42 (26) ◽  
pp. 6843-6850 ◽  
Author(s):  
Yang-Fu Chen ◽  
Feng-Sheng Wang
Keyword(s):  
Ethanol Production ◽  
Batch Fermentation ◽  
Fuzzy Optimization ◽  
Fed Batch ◽  
Fed Batch Fermentation

Run-to-Run Optimization of Fed-Batch Fermentation for Ethanol Production

2010 ◽  
Vol 33 (9) ◽  
pp. 1488-1494 ◽  
Author(s):  
W.-H. Huang ◽  
G. S. Shieh ◽  
F.-S. Wang
Keyword(s):  
Ethanol Production ◽  
Batch Fermentation ◽  
Fed Batch ◽  
Fed Batch Fermentation

Ethanol production from biomass by repetitive solid-state fed-batch fermentation with continuous recovery of ethanol

2010 ◽  
Vol 88 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Churairat Moukamnerd ◽  
Masahiro Kino-oka ◽  
Minetaka Sugiyama ◽  
Yoshinobu Kaneko ◽  
Chuenchit Boonchird ◽  
...  
Keyword(s):  
Solid State ◽  
Ethanol Production ◽  
Batch Fermentation ◽  
Fed Batch ◽  
Fed Batch Fermentation

Optimization of Bioethanol Ethanol Production in Fed-batch Fermentation

2012 ◽  
Vol 45 (15) ◽  
pp. 816-821 ◽  
Author(s):  
Zheng Li ◽  
Alim Dewan ◽  
M Nazmul Karim
Keyword(s):  
Ethanol Production ◽  
Batch Fermentation ◽  
Fed Batch ◽  
Fed Batch Fermentation

scholarly journals Batch and Fed-Batch Fermentation System on Ethanol Production from Whey using Kluyveromyces marxianus

2013 ◽  
Vol 2 (3) ◽  
pp. 127-131 ◽  
Author(s):  
H Hadiyanto ◽  
D. Ariyanti ◽  
A.P. Aini ◽  
D.S. Pinundi
Keyword(s):  
Growth Rate ◽  
Ethanol Production ◽  
Kluyveromyces Marxianus ◽  
Batch Fermentation ◽  
Fermentation Process ◽  
Ethanol Yield ◽  
Fed Batch ◽  
Fermentation System ◽  
Batch System ◽  
Fed Batch Fermentation

Nowadays reserve of fossil fuel has gradually depleted. This condition forces many researchers to  find energy alternatives which is renewable and sustainable in the future. Ethanol derived from cheese industrial waste (whey) using fermentation process can be a new perspective in order to secure both energy and environment. The aim of this study was  to compare the operation modes (batch and fed-batch) of fermentation system on ethanol production from whey using Kluyveromyces marxianus. The result showed that the fermentation process for ethanol production by fed-batch system was higher at some point of parameters compared with batch system. Growth rate and ethanol yield (YP/S) of fed-batch fermentation were 0.122/h and 0.21 gP/gS respectively; growth rate and ethanol yield (YP/S) of batch fermentation were 0.107/h, and 0.12 g ethanol/g substrate, respectively. Based on the data of biomass and ethanol concentrations, the fermentation process for ethanol production by fed-batch system were higher at some point of parameters compared to batch system. Periodic substrate addition performed on fed-batch system leads the yeast growth in low substrate concentrations and consequently  increasing their activity and ethanol productivity. Keywords: batch; ethanol; fed-batch; fermentation;Kluyveromyces marxianus, whey

Improvement of ethanol production by extractive fed-batch fermentation in a drop column bioreactor

2020 ◽  
Vol 43 (12) ◽  
pp. 2295-2303
Author(s):  
Diego A. Lemos ◽  
Jorge L. S. Sonego ◽  
Antonio J. G. Cruz ◽  
Alberto C. Badino
Keyword(s):  
Ethanol Production ◽  
Batch Fermentation ◽  
Fed Batch ◽  
Fed Batch Fermentation ◽  
Column Bioreactor

scholarly journals Bioethanol Production From Pennisetum sp. Using Fed-Batch Simultaneous Saccharification and Co-Fermentation at High Solid Loadings and Its Life Cycle Analysis

2020 ◽  
Author(s):  
Sonai Mohapatra ◽  
Bikash Chandra Behera ◽  
Achuyta Nanda Acharya ◽  
Hrudayanath thatoi
Keyword(s):  
Life Cycle ◽  
Ethanol Production ◽  
Life Cycle Analysis ◽  
Batch Fermentation ◽  
Shake Flask ◽  
Feeding Strategy ◽  
Bioethanol Production ◽  
Fed Batch ◽  
Fed Batch Fermentation ◽  
Simultaneous Saccharification

Abstract Considerable progress has been achieved for production of bioethanol from lignocellulosic biomass. However, increasing the substrate concentration has shown to decrease the ethanol productivity. In the present study, Saccharomyces cerevisiae and Pichia membreneferans were used for ethanol production from glucose and xylose sugars respectively in optimized conditions. Further, co-culture fermentations were conducted in three different strategies for 13 g of sugar (10 g of glucose and 3 g of xylose) and the best strategy was further used for ethanol production from ultrasonication assisted NaOH (UA-NaOH) pretreated and enzymatically saccharified in batch and fed-batch fermentation conditions. Further, fed-batch fermentation was used for separate hydrolysis and co-fermentation (SHCF) and simultaneous saccharification and co-fermentation (SSCF) in shake flask conditions. The highest ethanol production of 12.2 and 7.9 (g/L) was observed for fed-batch SSCF denannath grass (DG) and Hybrid napier grass (HNG) (Palkonal MBW as the enzyme) biomass (80 g) respectively in shake flask conditions. However, increasing the biomass concentration to 270 g produced an ethanol concentration of 77.6 and 51.3 (g/L) for DG and HNG respectively in fed-batch SSCF conditions in bioreactor. Nuclear magnetic resonance studies of the residual biomass of both DG and HNG revealed presence of lower carbohydrate content, demonstrating the efficiency of the fermentation strategy. Further Life cycle Analysis (LCA) was also conducted to analyzed the effect of the ethanol on different environmental conditionsThe substrate feeding strategy and the saccharifying enzymes play a major role for efficient bioethanol production with higher substrate loadings. Presence of lower carbohydrates and some lignin moieties demonstrating the efficiency of the SSCF strategy for maximum conversion of carbohydrates. Thus fed batch SSCF process can be considered as a promising technique for biorefinery based bioethanol production from Pennisetum sp. in the future.

Sign in / Sign up

Export Citation Format

Share Document