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Article

Bioactive Lipids of Seaweeds from the Portuguese North Coast: Health Benefits versus Potential Contamination

1
REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto (ISEP), Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4200-072 Porto, Portugal
2
REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
3
CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Hideki Kanda
Received: 30 April 2021 / Revised: 9 June 2021 / Accepted: 10 June 2021 / Published: 12 June 2021
The total lipid content and lipidic profile of seaweeds harvested in the North Coast and purchased in Portugal were determined in this paper. The amount of total lipids in the different species of seaweeds varied between 0.7 ± 0.1% (Chondrus crispus) and 3.8 ± 0.6% (Ulva spp.). Regarding the fatty acid content, polyunsaturated fatty acids (PUFA) ranged between 0–35%, with Ulva spp. presenting the highest amount; monounsaturated fatty acids (MUFA) varied between 19 and 67%; and saturated fatty acids (SFA) were predominant in C. crispus (45–78%) and Gracilaria spp. (36–79%). Concerning the nutritional indices, the atherogenicity index (AI) was between 0.4–3.2, the thrombogenicity index (TI) ranged from 0.04 to 1.95, except for Gracilaria spp., which had a TI of 7.6, and the hypocholesterolemic/hypercholesterolemic ratio (HH) values ranged between 0.88–4.21, except for Gracilaria spp., which exhibited values between 0.22–9.26. The n6/n3 ratio was below 1 for most of the species evaluated, except for Ascophyllum nodosum, which presented a higher value, although below 2. Considering the PUFA/SFA ratio, seaweeds presented values between 0.11–1.02. The polycyclic aromatic hydrocarbons (PAHs) and aliphatic hydrocarbons (AHCs) contamination of seaweeds under study was also quantified, the values found being much lower than the maximum levels recommended for foodstuff. View Full-Text
Keywords: aliphatic hydrocarbons; fatty acids; lipid profile; nutritional indices; polycyclic aromatic hydrocarbons; seaweeds nutrition aliphatic hydrocarbons; fatty acids; lipid profile; nutritional indices; polycyclic aromatic hydrocarbons; seaweeds nutrition
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MDPI and ACS Style

Soares, C.; Sousa, S.; Machado, S.; Vieira, E.; Carvalho, A.P.; Ramalhosa, M.J.; Morais, S.; Correia, M.; Oliva-Teles, T.; Domingues, V.F.; Delerue-Matos, C. Bioactive Lipids of Seaweeds from the Portuguese North Coast: Health Benefits versus Potential Contamination. Foods 2021, 10, 1366. https://0-doi-org.brum.beds.ac.uk/10.3390/foods10061366

AMA Style

Soares C, Sousa S, Machado S, Vieira E, Carvalho AP, Ramalhosa MJ, Morais S, Correia M, Oliva-Teles T, Domingues VF, Delerue-Matos C. Bioactive Lipids of Seaweeds from the Portuguese North Coast: Health Benefits versus Potential Contamination. Foods. 2021; 10(6):1366. https://0-doi-org.brum.beds.ac.uk/10.3390/foods10061366

Chicago/Turabian Style

Soares, Cristina, Sara Sousa, Susana Machado, Elsa Vieira, Ana P. Carvalho, Maria J. Ramalhosa, Simone Morais, Manuela Correia, Teresa Oliva-Teles, Valentina F. Domingues, and Cristina Delerue-Matos. 2021. "Bioactive Lipids of Seaweeds from the Portuguese North Coast: Health Benefits versus Potential Contamination" Foods 10, no. 6: 1366. https://0-doi-org.brum.beds.ac.uk/10.3390/foods10061366

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