AI Article Synopsis
- Microalgae are valuable for addressing environmental and societal challenges due to their ability to produce beneficial compounds like omega-3 fatty acids and xanthophylls, which have applications in nutrition and cosmetics.
- Research aimed to find cost-effective and eco-friendly methods for co-extracting these compounds from microalgae by testing various parameters such as solvent type, temperature, and extraction time.
- The study found that using 96% ethanol as a solvent achieved high extraction yields for both xanthophylls and omega-3 fatty acids within a short time, indicating potential for industrial use.
Article Abstract
By their autotrophic nature and their molecular richness, microalgae are serious assets in the context of current environmental and societal challenges. Some species produce both omega-3 long chain polyunsaturated fatty acids (PUFAs) and xanthophylls, two molecular families widely studied for their bioactivities in the fields of nutrition and cosmetics. Whereas most studies separately deal with the two families, synergies could be exploited with extracts containing both PUFAs and xanthophylls. The purpose of our work was to determine cost effective and eco-friendly parameters for their co-extraction. The effect of several parameters (solvent, solvent/biomass ratio, temperature, duration) were studied, using two microalgal species, the non-calcifying Haptophyta and the diatom , that presents a silicified frustule. Analyses of PUFAs and fucoxanthin (Fx), the main xanthophyll, allowed to compare kinetics and extraction yields between experimental protocols. Co-extraction yields achieved using 96% ethanol as solvent were 100% for Fx and docosahexaenoic acid (DHA) in one hour from biomass, and respectively 95% and 89% for Fx and eicosapentaenoic acid (EPA) in eight hours from . These conditions are compatible with industrial applications.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6017215 | PMC |
| http://dx.doi.org/10.3390/molecules23040874 | DOI Listing |
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