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Optimisation of the alcoholic fermentation of aqueous jerivá pulp extract
- Source :
- Acta Scientiarum. Technology; Vol 36 No 4 (2014); 699-705, Acta Scientiarum. Technology; v. 36 n. 4 (2014); 699-705, Acta scientiarum. Technology, Universidade Estadual de Maringá (UEM), instacron:UEM, Acta Scientiarum: Technology, Vol 36, Iss 4, Pp 699-705 (2014)
- Publication Year :
- 2014
- Publisher :
- Universidade Estadual De Maringá, 2014.
-
Abstract
- The objective of this research is to determinate the optimum conditions for the alcoholic fermentation process of aqueous jerivá pulp extract using the response surface methodology and simplex optimisation technique. The incomplete factorial design 3³ was applied with the yeast extract, NH4H2PO4 and yeast as the independent variables and the alcohol production yield as the response. The regression analysis indicated that the model is predictive, and the simplex optimisation generated a formulation containing 0.35 g L-1 yeast extract, 6.33 g L-1 yeast and 0.30 g L-1NH4H2PO4 for an optimum yield of 85.40% ethanol. To validate the predictive equation, the experiment was carried out in triplicate under optimum conditions, and an average yield of 87.15% was obtained. According to a t-test, no significant difference was observed (on the order of 5%) between the average value obtained and the value indicated by the simplex optimisation technique. The objective of this research is to determinate the optimum conditions for the alcoholic fermentation process of aqueous jerivá pulp extract using the response surface methodology and simplex optimisation technique. The incomplete factorial design 3³ was applied with the yeast extract, NH4H2PO4 and yeast as the independent variables and the alcohol production yield as the response. The regression analysis indicated that the model is predictive, and the simplex optimisation generated a formulation containing 0.35 g L-1 yeast extract, 6.33 g L-1 yeast and 0.30 g L-1 NH4H2PO4 for an optimum yield of 85.40% ethanol. To validate the predictive equation, the experiment was carried out in triplicate under optimum conditions, and an average yield of 87.15% was obtained. According to a t-test, no significant difference was observed (on the order of 5%) between the average value obtained and the value indicated by the simplex optimisation technique.
- Subjects :
- experimental design
General Computer Science
General Mathematics
General Physics and Astronomy
engineering.material
Ethanol fermentation
yeast
chemistry.chemical_compound
Yeast extract
Response surface methodology
lcsh:Science (General)
Mathematics
Aqueous solution
Chromatography
Ethanol
Pulp (paper)
General Engineering
General Chemistry
Factorial experiment
Yeast
simplex optimisation
chemistry
lcsh:TA1-2040
engineering
General Earth and Planetary Sciences
lcsh:Engineering (General). Civil engineering (General)
lcsh:Q1-390
Subjects
Details
- Language :
- English
- ISSN :
- 18062563 and 18078664
- Database :
- OpenAIRE
- Journal :
- Acta Scientiarum. Technology; Vol 36 No 4 (2014); 699-705, Acta Scientiarum. Technology; v. 36 n. 4 (2014); 699-705, Acta scientiarum. Technology, Universidade Estadual de Maringá (UEM), instacron:UEM, Acta Scientiarum: Technology, Vol 36, Iss 4, Pp 699-705 (2014)
- Accession number :
- edsair.doi.dedup.....21718b0881b56c931cfeffb5c85ce164