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Optimization of fermentation parameters to enhance the production of ethanol from palmyra jaggery using Saccharomyces cerevisiae in a batch fermentor.
Bandaru, Veera Venkata Ratnam; Bandaru, Sita Ramalakshmi; Somalanka, Subba Rao; Mendu, Damodara Rao; Imandi, Sarat Babu; Bejawada, Srinivasa Rao; Medicherla, Narasimha Rao; Devarajan, Thangadurai; Karothi, Jayaraju; Chityala, Ayyanna.
Afiliación
  • Bandaru VV; Department of Neurology, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Pathology 233/Meyer 222, Baltimore, MD 21287, USA. vbandar2@jhmi.edu
Appl Biochem Biotechnol ; 143(3): 224-35, 2007 Dec.
Article en En | MEDLINE | ID: mdl-18057450
Application of statistical experimental designs for optimization of fermentation parameters to enhance ethanol production, which is an economical and renewable energy source using Saccharomyces cerevisiae NCIM 3090 from palmyra jaggery, was studied in a batch fermentor. Using Plackett-Burman design, impeller speed, concentrations of CoCl2 and KH2PO4 were identified as significant variables, which highly influenced ethanol production, and these variables were further optimized using a central composite design (CCD). The ethanol production was adequately approximated with a full quadratic equation obtained from three factors and five levels of CCD. Maximum ethanol concentration of 132.56 g/l (16.8% [v/v]) was obtained for an impeller speed of 247.179 ( approximately 250) rev/min, CoCl2 of 0.263 g/l and KH2PO4 of 2.39 g/l. A second-order polynomial regression model was fitted and was found adequate with R 2 of 0.8952. This combined statistical approach enables rapid identification and investigation of significant parameters for improving the ethanol production and could be very useful in optimizing processes.
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Bases de datos: MEDLINE Asunto principal: Saccharomyces cerevisiae / Extractos Vegetales / Reactores Biológicos / Arecaceae / Etanol / Fermentación Tipo de estudio: Prognostic_studies Idioma: En Revista: Appl Biochem Biotechnol Año: 2007 Tipo del documento: Article País de afiliación: Estados Unidos
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Bases de datos: MEDLINE Asunto principal: Saccharomyces cerevisiae / Extractos Vegetales / Reactores Biológicos / Arecaceae / Etanol / Fermentación Tipo de estudio: Prognostic_studies Idioma: En Revista: Appl Biochem Biotechnol Año: 2007 Tipo del documento: Article País de afiliación: Estados Unidos