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Issue 5, 2016
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Novel astaxanthin extraction from Haematococcus pluvialis using cell permeabilising ionic liquids

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Abstract

Haematococcus pluvialis (H. pluvialis) is a natural source of the food colorant astaxanthin. It is characterised by a thick resistant cell wall composed of a non-hydrolysable biopolymer, sporopollenin. High energy-consuming mechanical disruption is required to improve the extractability of astaxanthin. As opposed to that, this study uses a novel technology with ionic liquids (ILs) to permeabilise the Haematococcal cyst cell at mild temperatures and improve the extraction of astaxanthin. The study shows that ≥70% astaxanthin can be extracted from intact H. pluvialis cells using 1-ethyl-3-methylimidazolium di-butylphosphate (EMIM DBP) at a concentration of 40% w/w in a water solution and a temperature of 45 °C. Ionic liquids serve as a promising pre-treatment step for extraction of pigments from intact H. pluvialis cells. The results obtained open new avenues for processing of algal biomass.

Graphical abstract: Novel astaxanthin extraction from Haematococcus pluvialis using cell permeabilising ionic liquids

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Article information


Submitted
12 Jun 2015
Accepted
29 Sep 2015
First published
29 Sep 2015

Green Chem., 2016,18, 1261-1267
Article type
Paper

Novel astaxanthin extraction from Haematococcus pluvialis using cell permeabilising ionic liquids

R. K. Desai, M. Streefland, R. H. Wijffels and M. H. M. Eppink, Green Chem., 2016, 18, 1261
DOI: 10.1039/C5GC01301A

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