PROCESS OPTIMIZATION FOR ETHANOL PRODUCTION FROM VERY HIGH GRAVITY (VHG) FINGER MILLET MEDIUM USING RESPONSE SURFACE METHODOLOGY

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PRADEEP PULIGUNDLA; VIJAYA SARATHI REDDY OBULAM; RAMA MOHAN POLUDASU; KO SANGHOON

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Journal Paper

Paper Information

Journal: Iranian Journal of Biotechnology Year:2012 | Volume:10 | Issue:3 Page(s): 168-174

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Information Journal Paper

Title

PROCESS OPTIMIZATION FOR ETHANOL PRODUCTION FROM VERY HIGH GRAVITY (VHG) FINGER MILLET MEDIUM USING RESPONSE SURFACE METHODOLOGY

Author(s)

PRADEEP PULIGUNDLA | VIJAYA SARATHI REDDY OBULAM | RAMA MOHAN POLUDASU | KO SANGHOON | Issue Writer Certificate

Keywords

ETHANOL PRODUCTION

FINGER MILLET MEDIUM

OPTIMIZATION

RESPONSE SURFACE METHODOLOGY

VERY HIGH GRAVITY (VHG) FERMENTATION

Abstract

The Box-Wilson central composite design (CCD) based on RESPONSE SURFACE METHODOLOGY (RSM) was used for ethanol fermentation using very high gravity (VHG) finger millet hydrolysate. Optimized process variables were namely, concentrations of yeast extract, magnesium sulphate and pH of the medium.High gravity mashes (>300 g dissolved solids per liter) were prepared by a thermo-stable a-amylase, followed by simultaneous saccharification and fermentation (SSF) at 30oC for 60 h. Ethanol concentration as high as 13.66% (v/v) was obtained after optimizing the variables.The coefficient of determination (R2) value of 0.9808 indicates the goodness of fit for regression model. The predicted values for OPTIMIZATION process conditions were in good agreement with experimental data. The optimum values for tested variables were yeast extract 7.13 (g/l) magnesium sulphate 23.32 mM and pH 4.8. Verification of the model indicated no significant difference between predicted and observed values.

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APA: Copy

PRADEEP, PULIGUNDLA, VIJAYA SARATHI REDDY, OBULAM, RAMA MOHAN, POLUDASU, & KO, SANGHOON. (2012). PROCESS OPTIMIZATION FOR ETHANOL PRODUCTION FROM VERY HIGH GRAVITY (VHG) FINGER MILLET MEDIUM USING RESPONSE SURFACE METHODOLOGY. IRANIAN JOURNAL OF BIOTECHNOLOGY, 10(3), 168-174. SID. https://sid.ir/paper/604378/en

Vancouver: Copy

PRADEEP PULIGUNDLA, VIJAYA SARATHI REDDY OBULAM, RAMA MOHAN POLUDASU, KO SANGHOON. PROCESS OPTIMIZATION FOR ETHANOL PRODUCTION FROM VERY HIGH GRAVITY (VHG) FINGER MILLET MEDIUM USING RESPONSE SURFACE METHODOLOGY. IRANIAN JOURNAL OF BIOTECHNOLOGY[Internet]. 2012;10(3):168-174. Available from: https://sid.ir/paper/604378/en

IEEE: Copy

PULIGUNDLA PRADEEP, OBULAM VIJAYA SARATHI REDDY, POLUDASU RAMA MOHAN, and SANGHOON KO, “PROCESS OPTIMIZATION FOR ETHANOL PRODUCTION FROM VERY HIGH GRAVITY (VHG) FINGER MILLET MEDIUM USING RESPONSE SURFACE METHODOLOGY,” IRANIAN JOURNAL OF BIOTECHNOLOGY, vol. 10, no. 3, pp. 168–174, 2012, [Online]. Available: https://sid.ir/paper/604378/en

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