2013
DOI: 10.1002/jctb.4042
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Kinetic studies of ethanol fermentation using Kluyveromyces sp. IIPE453

Abstract: Background To operate the fermentation process effectively and efficiently, the kinetic modeling of cell growth and ethanol fermentation is necessary to predict the results of industrial fermentations under the optimized conditions. Results A kinetic study was conducted for glucose utilization for growth of the yeast strain Kluyveromyces sp. IIPE453 and ethanol formation. Effect of temperature, pH and initial glucose concentration on cell growth and ethanol formation was studied. The data obtained experimental… Show more

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Cited by 14 publications
(12 citation statements)
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“…However, the substrate inhibition hypothesis has resulted in smaller residuals; therefore, more precision was obtained with this model. Furthermore, the yield coefficient value is a little different from the ones found in literature, though with different yields the model would not describe with accuracy the state variables. It shall be highlighted that these results are suitable for this solid‐state fermentation process using this Kluyveromyces marxianus strain.…”
Section: Modeling Validation Results and Discussionmentioning
confidence: 62%
See 1 more Smart Citation
“…However, the substrate inhibition hypothesis has resulted in smaller residuals; therefore, more precision was obtained with this model. Furthermore, the yield coefficient value is a little different from the ones found in literature, though with different yields the model would not describe with accuracy the state variables. It shall be highlighted that these results are suitable for this solid‐state fermentation process using this Kluyveromyces marxianus strain.…”
Section: Modeling Validation Results and Discussionmentioning
confidence: 62%
“…5, is, also, implicitly a function of time and bioreactor length. Equations (9)(10)(11)(12) are intimately linked with the cells growth kinetics, since all of them-substrate consumption (total reducing sugar-TRS), S, and production of ethanol, P, carbon dioxide, CO 2 , and oxygen, O 2 ,-are dependent on the Eq. 5, considering its respective conversion rate.…”
Section: Model Of Solid-state Fermentationmentioning
confidence: 99%
“…Yeast growth is commonly described by the Verhulst–Pearl equation (i.e., the logistic equation) as follows : u=unormalm1xxnormalm. Finally, the cell growth function can be derived as follows: x=xnormalm·expfalse(um·t+cfalse)1+exp(unormalm·t+c).…”
Section: Methodsmentioning
confidence: 99%
“…The ethanol productivities upon mixture of bagasse hydrolysate with sugarcane juice, molasses and extract of mahua flowers were 1.7, 1.75 and 2.57 g l À 1 h À 1 , respectively [63]. The optimum temperature, pH and initial glucose concentration were 50 1C, 5.0 and 10 g l À 1 , respectively for growth and same temperature and pH 5.0 except glucose tolerance upto 300 g l À 1 for ethanol fermentation [64].…”
Section: Kluyveromyces Speciesmentioning
confidence: 99%
“…Ethanol inhibition begins at around varies from 25 g l À 1 [88] to 86.5 g l À 1 [64] depending upon the culture used for fermentation. Another important issue which needs to be sorted out is the high energy required for product recovery.…”
Section: In-situ Ethanol Recoverymentioning
confidence: 99%