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Polyunsaturated Fatty acids of marine macroalgae: potential for nutritional and pharmaceutical applications.

Pereira H, Barreira L, Figueiredo F, Custódio L, Vizetto-Duarte C, Polo C, Rešek E, Engelen A, Varela J - Mar Drugs (2012)

Bottom Line: The obtained data showed that rhodophytes and phaeophytes have higher concentrations of PUFA, particularly from the n-3 series, thereby being a better source of these compounds.Ulva was an exception within the Chlorophyta, as it presented high concentrations of n-3 PUFA, α-linolenic acid in particular.In conclusion, macroalgae can be considered as a potential source for large-scale production of essential PUFA with wide applications in the nutraceutical and pharmacological industries.

View Article: PubMed Central - PubMed

Affiliation: Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal. hgpereira@ualg.pt

ABSTRACT
As mammals are unable to synthesize essential polyunsaturated fatty acids (PUFA), these compounds need to be taken in through diet. Nowadays, obtaining essential PUFA in diet is becoming increasingly difficult; therefore this work investigated the suitability of using macroalgae as novel dietary sources of PUFA. Hence, 17 macroalgal species from three different phyla (Chlorophyta, Phaeophyta and Rhodophyta) were analyzed and their fatty acid methyl esters (FAME) profile was assessed. Each phylum presented a characteristic fatty acid signature as evidenced by clustering of PUFA profiles of algae belonging to the same phylum in a Principal Components Analysis. The major PUFA detected in all phyla were C(18) and C(20), namely linoleic, arachidonic and eicosapentaenoic acids. The obtained data showed that rhodophytes and phaeophytes have higher concentrations of PUFA, particularly from the n-3 series, thereby being a better source of these compounds. Moreover, rhodophytes and phaeophytes presented "healthier" ∑n-6/∑n-3 and PUFA/saturated fatty acid ratios than chlorophytes. Ulva was an exception within the Chlorophyta, as it presented high concentrations of n-3 PUFA, α-linolenic acid in particular. In conclusion, macroalgae can be considered as a potential source for large-scale production of essential PUFA with wide applications in the nutraceutical and pharmacological industries.

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Total FAME concentration of macroalgae from three different phyla (Chlorophyta, Phaeophyta and Rhodophyta). Error bars represent the standard deviation from four replicates.
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marinedrugs-10-01920-f002: Total FAME concentration of macroalgae from three different phyla (Chlorophyta, Phaeophyta and Rhodophyta). Error bars represent the standard deviation from four replicates.

Mentions: Total FAME concentration ranged from 2.1 in Jania sp. to 13.0 mg/g of dry weight (DW) in Dictyota spiralis (Figure 2). In the Chlorophyta algae, total FAME concentrations varied between 5.2 and 7.5 mg/g, except for Cladophora albida (9.5 mg/g). The Phaeophyta phylum presented significantly higher concentrations of total FAME than the other phyla (5.6–13.0 mg/g), namely in Dictyota dichotoma, D. spiralis, Taonia atomaria and Cladostephus spongiosus (p < 0.05). The lowest concentration of total FAME was recorded in the rhodophytes (p < 0.05), with all species presenting less than 5.5 mg/g. The relative concentration of lipids and corresponding FAME regarding each phylum is in accordance with previous reports [24].


Polyunsaturated Fatty acids of marine macroalgae: potential for nutritional and pharmaceutical applications.

Pereira H, Barreira L, Figueiredo F, Custódio L, Vizetto-Duarte C, Polo C, Rešek E, Engelen A, Varela J - Mar Drugs (2012)

Total FAME concentration of macroalgae from three different phyla (Chlorophyta, Phaeophyta and Rhodophyta). Error bars represent the standard deviation from four replicates.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3475264&req=5

marinedrugs-10-01920-f002: Total FAME concentration of macroalgae from three different phyla (Chlorophyta, Phaeophyta and Rhodophyta). Error bars represent the standard deviation from four replicates.
Mentions: Total FAME concentration ranged from 2.1 in Jania sp. to 13.0 mg/g of dry weight (DW) in Dictyota spiralis (Figure 2). In the Chlorophyta algae, total FAME concentrations varied between 5.2 and 7.5 mg/g, except for Cladophora albida (9.5 mg/g). The Phaeophyta phylum presented significantly higher concentrations of total FAME than the other phyla (5.6–13.0 mg/g), namely in Dictyota dichotoma, D. spiralis, Taonia atomaria and Cladostephus spongiosus (p < 0.05). The lowest concentration of total FAME was recorded in the rhodophytes (p < 0.05), with all species presenting less than 5.5 mg/g. The relative concentration of lipids and corresponding FAME regarding each phylum is in accordance with previous reports [24].

Bottom Line: The obtained data showed that rhodophytes and phaeophytes have higher concentrations of PUFA, particularly from the n-3 series, thereby being a better source of these compounds.Ulva was an exception within the Chlorophyta, as it presented high concentrations of n-3 PUFA, α-linolenic acid in particular.In conclusion, macroalgae can be considered as a potential source for large-scale production of essential PUFA with wide applications in the nutraceutical and pharmacological industries.

View Article: PubMed Central - PubMed

Affiliation: Centre of Marine Sciences, University of Algarve, Faro 8005-139, Portugal. hgpereira@ualg.pt

ABSTRACT
As mammals are unable to synthesize essential polyunsaturated fatty acids (PUFA), these compounds need to be taken in through diet. Nowadays, obtaining essential PUFA in diet is becoming increasingly difficult; therefore this work investigated the suitability of using macroalgae as novel dietary sources of PUFA. Hence, 17 macroalgal species from three different phyla (Chlorophyta, Phaeophyta and Rhodophyta) were analyzed and their fatty acid methyl esters (FAME) profile was assessed. Each phylum presented a characteristic fatty acid signature as evidenced by clustering of PUFA profiles of algae belonging to the same phylum in a Principal Components Analysis. The major PUFA detected in all phyla were C(18) and C(20), namely linoleic, arachidonic and eicosapentaenoic acids. The obtained data showed that rhodophytes and phaeophytes have higher concentrations of PUFA, particularly from the n-3 series, thereby being a better source of these compounds. Moreover, rhodophytes and phaeophytes presented "healthier" ∑n-6/∑n-3 and PUFA/saturated fatty acid ratios than chlorophytes. Ulva was an exception within the Chlorophyta, as it presented high concentrations of n-3 PUFA, α-linolenic acid in particular. In conclusion, macroalgae can be considered as a potential source for large-scale production of essential PUFA with wide applications in the nutraceutical and pharmacological industries.

Show MeSH