Evaluation of cell recycling in continuous fermentation of enzymatic hydrolysates of spruce with Saccharomyces cerevisiae and on-line monitoring of glucose and ethanol

1998 ◽  
Vol 50 (5) ◽  
pp. 545-551 ◽  
Author(s):  
E. Palmqvist ◽  
M. Galbe ◽  
B. Hahn-Hägerdal
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Continuous Fermentation ◽  
Enzymatic Hydrolysates ◽  
On Line ◽  
Cell Recycling

scholarly journals Food Grade Ethanol Production Process of Sorghum Stem Juice Using Immobilized Cells Technique

2015 ◽  
Vol 9 (7) ◽  
pp. 8 ◽  
Author(s):  
Tri Widjaja ◽  
Ali Altway ◽  
Arief Widjaja ◽  
Umi Rofiqah ◽  
Rr Whiny Hardiyati Erlian
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Molecular Sieve ◽  
Zymomonas Mobilis ◽  
Immobilized Cells ◽  
Ethanol Yield ◽  
Continuous Fermentation ◽  
Continuous Process ◽  
Pichia Stipitis ◽  
Batch Process ◽  
Food Grade

One form of economic development efforts for waste utilization in rural communities is to utilize stem sorghum to produce food grade ethanol. Sorghum stem juice with 150 g/L of sugar concentration was fermented using conventional batch process and cell immobilization continuous process with K-carrageenan as a supporting matrix. The microorganism used was Mutated Zymomonas Mobilis to be compared with a mixture of Saccharomyces Cerevisiae and Pichia Stipitis, and a mixture of Mutated Zymomonas Mobilis and Pichia Stipitis. Ethanol in the broth, result of fermentation process, was separated in packed distillation column. Distilate of the column, still contain water and other impurities, was flown into molecular sieve for dehydration and activated carbon adsorption column to remove the other impurities to meet food grade ethanol specification. The packing used in distillation process was steel wool. For batch fermentation, the fermentation using a combination of Saccharomyces Cerevisiae and Pichia Stipitis produced the best ethanol with 12.07% of concentration, where the yield and the productivity were 63.49%, and 1.06 g/L.h, respectively. And for continuous fermentation, the best ethanol with 9.02% of concentration, where the yield and the productivity were 47.42% and 174.27 g/L.h, respectively, is obtained from fermentation using a combination of Saccharomyces Cerevisiae and Pichia Stipitis also. Fermentation using combination microorganism of Saccharomyces Cerevisiae and Pichia Stipitis produced higher concentration of ethanol, yield, and productivity than other microorganisms. Distillation, molecular sieve dehydration and adsorption process is quite successful in generating sufficient levels of ethanol with relatively low amount of impurities.

A Preliminary Information About Continuous Fermentation Using Cell Recycling for Improving Microbial Xylitol Production Rates(Scientific Note)

1999 ◽  
Vol 78 (1-3) ◽  
pp. 571-576 ◽  
Author(s):  
Silvio S. Silva ◽  
Adolfo Q. Chanto ◽  
Michele Vitolo ◽  
Maria G. A. Felipe ◽  
Ismael M. Mancilha
Keyword(s):  
Continuous Fermentation ◽  
Xylitol Production ◽  
Production Rates ◽  
Preliminary Information ◽  
Scientific Note ◽  
Cell Recycling

Highly efficient l-lactic acid production from xylose in cell recycle continuous fermentation using Enterococcus mundtii QU 25

RSC Advances ◽  
2016 ◽  
Vol 6 (21) ◽  
pp. 17659-17668 ◽  
Author(s):  
Mohamed Ali Abdel-Rahman ◽  
Yukihiro Tashiro ◽  
Takeshi Zendo ◽  
Kenji Sakai ◽  
Kenji Sonomoto
Keyword(s):  
Lactic Acid ◽  
Continuous Fermentation ◽  
Corn Steep Liquor ◽  
Lactic Acid Production ◽  
High Concentration ◽  
Cell Recycle ◽  
Enterococcus Mundtii ◽  
Cell Recycling ◽  
Steep Liquor ◽  
Feeding Medium

We report an effective cell recycling continuous fermentation of xylose to l-lactic acid with high concentration, productivity, and yield using strain QU 25. pH was found to affect the yield and corn steep liquor as feeding medium enhanced the yield.

On-Line Estimation of Ethanol Concentration in Continuous Fermentation using a Mass-Flow Meter

1991 ◽  
Vol 72 (4) ◽  
pp. 315
Author(s):  
Kazuo Matsuura ◽  
Masato Hirotsune ◽  
Fujio Nakada ◽  
Masaaki Hamachi
Keyword(s):  
Mass Flow ◽  
Ethanol Concentration ◽  
Continuous Fermentation ◽  
Flow Meter ◽  
On Line

scholarly journals Dynamics in population heterogeneity during batch and continuous fermentation of Saccharomyces cerevisiae

2012 ◽  
Vol 29 ◽  
pp. S199-S200 ◽  
Author(s):  
A.L. Heins ◽  
R. Lencastre Fernandes ◽  
L. Lundin ◽  
M. Carlquist ◽  
S. Sörensen ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Continuous Fermentation ◽  
Population Heterogeneity

Ethanol production from enzymatic hydrolysates of sugarcane bagasse using recombinant xylose-utilising Saccharomyces cerevisiae

2002 ◽  
Vol 31 (3) ◽  
pp. 274-282 ◽  
Author(s):  
Carlos Martı́n ◽  
Mats Galbe ◽  
C.Fredrik Wahlbom ◽  
Bärbel Hahn-Hägerdal ◽  
Leif J Jönsson
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Ethanol Production ◽  
Sugarcane Bagasse ◽  
Enzymatic Hydrolysates
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