Issue 4, 2012

On the double role of surfactants as microalga cell lysis agents and antioxidants extractants

Abstract

An integrated process based on the concomitant role of non-ionic surfactants as cell disrupters and organic extractants of intracellular antioxidants is proposed for the first time in this work. The lytic effect of two common families of surfactants on the cell walls of the microalga Tetraselmis suecica has been initially evaluated. The antioxidant extraction based on aqueous two-phase systems (ATPS) was proposed using different potential salting out agents such as sodium inorganic and organic salts in aqueous solutions of the selected surfactants. The extraction efficiency was ascertained for the most representative biomolecules previously detected in this microalga: α-tocopherol, β-carotene and gallic acid. The viability of the process was checked in real lyophilized microalga samples, yielding higher antioxidant activity than that provided by an ultrasound-based conventional method.

Graphical abstract: On the double role of surfactants as microalga cell lysis agents and antioxidants extractants

Supplementary files

Article information

Article type
Paper
Submitted
11 Oct 2011
Accepted
25 Jan 2012
First published
24 Feb 2012

Green Chem., 2012,14, 1044-1051

On the double role of surfactants as microalga cell lysis agents and antioxidants extractants

G. Ulloa, C. Coutens, M. Sánchez, J. Sineiro, J. Fábregas, F. J. Deive, A. Rodríguez and M. J. Núñez, Green Chem., 2012, 14, 1044 DOI: 10.1039/C2GC16262H

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