Single-step extraction of carotenoids from brown macroalgae using non-ionic surfactants
authors Vieira, FA; Guilherme, RJR; Neves, MC; Abreu, H; Rodrigues, ERO; Maraschin, M; Coutinho, JAP; Ventura, SPM
nationality International
journal SEPARATION AND PURIFICATION TECHNOLOGY
author keywords Solid-liquid extraction; Non-ionic surfactants; Carotenoids; Fucoxanthin; Sargassum spp.; Seaweed; Organic solvent-free extractive method
keywords AQUEOUS MICELLAR SYSTEMS; SARGASSUM-MUTICUM; FUCOXANTHIN FX; IN-VITRO; PHAEOPHYCEAE; INFLAMMATION; FUCALES; VIVO
abstract While there is an accrued interest in the production and application of bioactive compounds from macroalgae, several of these compounds with high industrial and commercial interest remain underexplored. Carotenoids (and specifically fucoxanthin) normally found in brown macroalgae are examples of these compounds. One of the major issues associated with the poor commercial exploitation of these biomolecules is the need for a highly performant and low cost extraction process to extract them selectively from the algal biomass. In this work, aqueous solutions of various non-ionic surfactants were screened for the carotenoids extraction. Moreover, and after the selection of the most performant surfactants, several processing conditions, namely the solid-liquid ratio, concentration of surfactant and time of extraction were evaluated. The optimal conditions were applied to the extraction of carotenoids for both Portuguese and Brazilian algae species. With the process of extraction developed in this work, that was optimized for the dry seaweed biomass but it is also applicable to the fresh one, extraction results of 5.28 +/- 2.01 mg(carotenoids)/g(biomass) for Tomadol 25-7 and 1.86 +/- 0.06 mg(carotenoids)/g(biomass) for Pluronic P-123 were obtained. Despite the higher extraction efficiency of the conventional (ethanol-based) method (6.48 +/- 0.01 mg(carotenoids)/g(biomass)), the methodology proposed in this work allows a much higher selectivity of the carotenoids extraction since, unlike with ethanol, less contaminants (in particular chlorophylls) are extracted along with the carotenoids. This work proposes a simpler (with less extraction steps), more selective and organic solvent-free extractive process to recover carotenoids from brown macroalgae, directly applicable to fresh biomass. (C) 2016 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 1383-5866
year published 2017
volume 172
beginning page 268
ending page 276
digital object identifier (doi) 10.1016/j.seppur.2016.07.052
web of science category Engineering, Chemical
subject category Engineering
unique article identifier WOS:000385602300031
  ciceco authors
  impact metrics
times cited (wos core): 1
journal impact factor (jcr 2016): 3.359
5 year journal impact factor (jcr 2016): 3.843
category normalized journal impact factor percentile (jcr 2016): 84.815
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