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Low cost ionic liquid-water mixtures for effective extraction of carbohydrate and lipid from algae

Abstract

Biomass based biofuels are already an important energy source, and will increasingly be so into the future as the need for renewable energy rises. Due to fast multiplication rates, algae can provide a sustainable supply of biomass, and are attractive because they do not compete with food crops for habitat. Here we show that biomass derived from Chlorella vulgaris and Spirulina platensis can be pretreated with low cost choline amino acid based ionic liquids to effectively yield lipids (30.6% and 51% total lipids) and sugars (71% and 26% total sugars). The ionic liquids dissolve the lipids, leaving behind a carbohydrate rich solid. The lipids were extracted with hexane, and the solid was subjected to enzyme hydrolysis to release fermentable sugars. These results open new pathways towards dual production of biodiesel and bioethanol from algae, using low cost ionic liquids.

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Publication details

The article was received on 01 May 2017, accepted on 17 May 2017 and first published on 17 May 2017


Article type: Paper
DOI: 10.1039/C7FD00158D
Citation: Faraday Discuss., 2017, Accepted Manuscript
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    Low cost ionic liquid-water mixtures for effective extraction of carbohydrate and lipid from algae

    T. To, K. Procter, B. Simmons, S. Subashchandrabose and R. Atkin, Faraday Discuss., 2017, Accepted Manuscript , DOI: 10.1039/C7FD00158D

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