Kinetic modeling of the simultaneous production of ethanol and fructose by Saccharomyces cerevisiae
Electron. j. biotechnol
; Electron. j. biotechnol;34: 1-8, july. 2018. tab, graf
Article
in En
| LILACS
| ID: biblio-1026812
Responsible library:
CL1.1
ABSTRACT
Background:
Ethanol and fructose are two important industrial products that enjoy many uses. In this contribution, their production via selective fermentation of date extract using Saccharomyces cerevisiae was studied. Scaling up the process for possible commercialization was investigated in three fermentors with working volume ratio of 140400.Results:
Higher ethanol concentration was obtained in the larger fermentor due to conversion of fructose. Fructose yields in the 0.5-L, 7.5-L and 80-L fermentors were 99, 92 and 90%, respectively. Good fitting was obtained with the modified Monod kinetics; however, a better fit of cell mass was obtained with the modified GhoseTyagi model which accounts for ethanol inhibition.Conclusions:
The modified Gompertz model was expanded to facilitate prediction of products' formation and fructose fractions in all three fermentors. Such expansion will be beneficial in industrial applications.Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Saccharomyces cerevisiae
/
Ethanol
/
Fructose
Type of study:
Prognostic_studies
Language:
En
Journal:
EJB
/
Electron. j. biotechnol
/
Electronic journal of biotechnology
Journal subject:
BIOTECNOLOGIA
Year:
2018
Document type:
Article
Affiliation country:
/
Country of publication: