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Integrated process for production of surfactin Part 2. Equilibrium and kinetic study of surfactin adsorption onto activated carbon

Montastruc, Ludovic and Liu, Tao and Gancel, Frédérique and Zhao, Ling and Nikov, Iordan Integrated process for production of surfactin Part 2. Equilibrium and kinetic study of surfactin adsorption onto activated carbon. (2008) Biochemical Engineering Journal, vol. 3 (n° 3). pp. 349-354. ISSN 1369-703X

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Official URL: http://dx.doi.org/10.1016/j.bej.2007.07.023

Abstract

Previous work has presented kinetics of pure surfactin adsorption onto activated carbon. Being an efficient biosurfactant, the lipopeptide surfactin has been produced in a bioprocess supported by the strain Bacillus subtilis ATCC 21332. This work is aimed at studying surfactin recovery directly from the culture medium. A thermodynamic study is carried out. Referring to adsorption capacity, the thermodynamic study confirmed that the adsorption of pure surfactin is an exothermic process. The capacity of surfactin adsorption from culture media shows that the activated carbon could be used as efficient adsorbent for surfactin recovery in an integrated process. The study shows the importance of the temperature for process control. Aimed at fixed bed column design, surfactin adsorption modelling on a single microporous pellet is demonstrated.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Biochemical Engineering Journal website : http://www.sciencedirect.com/science/journal/1369703X
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > East China University of Science and Technology - ECUST (CHINA)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université Lille 1, Sciences et Technologies - Lille 1 (FRANCE)
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Deposited By:Hélène Dubernard

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