Nutritional value and fatty acid profile of two wild edible limpets from the Madeira Archipelago
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Patella aspera and Patella candei are two abundant limpet species commercially exploited and often used as a delicacy in the Madeira Archipelago, but there is a lack of scientific knowledge about these species. This study investigated the nutritional value and fatty acids of this species across the coast of Madeira Archipelago. The lipid content (7.71–12.60% dw), proteins (48.22–64.09% dw), ashes (11.12–23.12% dw) and carbohydrates (4.5–10.9% dw) were determined in P. aspera and P. candei at different collection sites. In the fatty acid composition, a total of 23 fatty acids (FAs) were identified. P. aspera showed the highest amount of monounsaturated FAs (MUFAs, 35.02%) and eicosapentaenoic acid (EPA, 12.59%), and P. candei presented the highest level of oleic acid (OA, 28.25%), polyunsaturated FAs (PUFAs, 27.26%) and arachidonic acid (AA, 11.38%). The Σω3/Σω6 dietary ratio presented levels > 0.25 suggesting that these marine molluscs are a good source of ω3 for dietary intake. Within each specie significant differences (p < 0.05) across sites were observed. High amounts of essential nutrients were shown in Patella species collected at Selvagens site while poorest levels were shown in Patella collected at Lido. The evaluation of the nutritional traits of P. candei and P. aspera shows that these limpets are good sources of essential fatty acids for human health and that the distribution of limpets is a key factor when determining its dietary value.
KeywordsPatella candei Patella aspera Lipid content Fatty acid AA EPA
This study was partially supported by the Oceanic Observatory of Madeira (M1420-01-0145-FEDER-000001-Observatório Oceânico da Madeira-OOM).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
Compliance with ethics requirements
This article does not contain any studies with human or animal subjects.
- 1.Fishery Statistical Collections: Consumption of Fish and Fishery Products (2018) Food and Agriculture Organization of the United Nation, Rome. http://www.fao.org/fishery/statistics/global-consumption/en. Accessed 23 Aug 2018
- 18.Kalogeropoulos N, Chiou A, Ioannou M, Karathanos VT, Hassapidou M, Andrikopoulos NK (2010) Nutritional evaluation and bioactive microconstituents (phytosterols, tocopherols, polyphenols, triterpenic acids) in cooked dry legumes usually consumed in the Mediterranean countries. Food Chem 121:682–690CrossRefGoogle Scholar
- 21.Lepage G, Roy CC (1986) Direct transesterification of all classes of lipids in a one-step reaction. J Lipid Res 27:114–120Google Scholar
- 22.Cohen Z, Vonshak A, Richmond A (1988) Effect of environmental conditions on fatty acid composition of the red alga porphyridium correlation to growth rate. J Phycol 24:328–332Google Scholar
- 24.Sidwell VD, Bonnet JC, Zook EG (1973) Chemical and nutritive values of several fresh and canned finfish, crustaceans, and mollusks part I: proximate composition, calcium, and phosphorus. Mar Fish Rev 35:16–19Google Scholar
- 28.Murray J, Burt JR (1983) The composition of fish. Ministry of Agriculture, Torry Research StationGoogle Scholar
- 35.Phleger CF, Nelson MM, Groce AK, Cary SC, Coyne KJ, Nichols PD (2005) Lipid composition of deep-sea hydrothermal vent tubeworm Riftia pachyptila, crabs Munidopsis subsquamosa and Bythograea thermydron, mussels Bathymodiolus sp. and limpets Lepetodrilus spp. Comp Biochem Physiol B Biochem Mol Biol 141:196–210CrossRefGoogle Scholar
- 41.Ferreira SJF (2013) Contributo para o estudo das Macroalgas do Intertidal da ilha da Madeira: Diversidade, Distribuição e Sazonalidade. Master Thesis, University of Madeira, FunchalGoogle Scholar