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Production of long chain alkyl esters from carbon dioxide and electricity by a two-stage bacterial process

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Details

Original languageEnglish
Pages (from-to)30-36
Number of pages7
JournalBioresource Technology
Volume243
DOIs
Publication statusPublished - 1 Nov 2017
Publication typeA1 Journal article-refereed

Abstract

Microbial electrosynthesis (MES) is a promising technology for the reduction of carbon dioxide into value-added multicarbon molecules. In order to broaden the product profile of MES processes, we developed a two-stage process for microbial conversion of carbon dioxide and electricity into long chain alkyl esters. In the first stage, the carbon dioxide is reduced to organic compounds, mainly acetate, in a MES process by Sporomusa ovata. In the second stage, the liquid end-products of the MES process are converted to the final product by a second microorganism, Acinetobacter baylyi in an aerobic bioprocess. In this proof-of-principle study, we demonstrate for the first time the bacterial production of long alkyl esters (wax esters) from carbon dioxide and electricity as the sole sources of carbon and energy. The process holds potential for the efficient production of carbon-neutral chemicals or biofuels.

ASJC Scopus subject areas

Keywords

  • Acinetobacter baylyi ADP1, Carbon dioxide fixation, Carbon neutral, Microbial electrosynthesis, Oleochemicals

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Field of science, Statistics Finland

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