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Corjan van den Berg, Arjan S. Heeres, Luuk A. M. van der Wielen and Adrie J. J. Straathof Simultaneous clostridial fermentation, lipase-catalyzed esterification, and ester extraction to enrich diesel with butyl butyrate Biotechnology and Bioengineering 110

Version of Record online: 22 AUG 2012 | DOI: 10.1002/bit.24618

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The recovery of 1-butanol from fermentation broth is energy-intensive since typical concentrations in fermentation broth are below 20 g L−1. To prevent butanol inhibition and high downstream processing costs, the authors aimed at producing butyl esters instead of 1-butanol. It is shown that it is possible to perform simultaneously clostridial fermentation, esterification of the formed butanol to butyl butyrate, and extraction of this ester by hexadecane.

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