Abstract
The objective of this study was to evaluate the centesimal composition, fatty acid profile and the nutritional quality index of four seafood species: pink shrimp ( Penaeus brasiliensis ), Pacific white shrimp ( Litopenaeus vannamei ), mussel ( Perna perna ) and octopus ( Octopus vulgaris ), that were collected in Santa Catarina, Brazil. The nutritional quality of the lipid fraction was evaluated by the index of thrombogenicity (IT), index of atherogenicity (IA) and the hypocholesterolaemic fatty acids-to-hypercholesterolaemic fatty acids ratio (h/H). All the studied species presented a high protein content (12.88-21.61%) and a low amount of total lipid (0.26-4.07%). The pink shrimp had the most protein and octopus contained the least total lipid. Eicosapentaenoic acid and docosahexaenoic acid were detected in all samples, presenting the highest values in mussel (204.62 and 123.57 mg 100 g -1 , respectively). The analysed species presented low IT and IA values and an h/H ratio around 2 or higher, and therefore, they are considered potentially healthy foods. Moreover, the shrimp species can be classified as a source of omega-3s, while the mussels can be categorised as having a high content in these polyunsaturated fatty acids.
Highlights
In 2013, Brazil's fishery production increased by 66% over the year 2012, from 1.5 Mt to 2.5 Mt
According to Medale, Lefèvre, and Corraze (2003), fish, shrimp and molluscs occupy an important place in human nutrition. These marine foods are a valuable source of high quality protein, minerals, vitamin D, polyunsaturated fatty acids (PUFAs) and essential fatty acids, omega-3s (n3s), such as αlinolenic acid (18:3n3), eicosapentaenoic acid (EPA, 20:5n3) and docosahexaenoic acid (DHA, 22:6n3)
This study aimed to evaluate the centesimal composition, fatty acid profile and lipid nutritional quality indices of mussel, octopus and two shrimp species collected in Santa Catarina (Brazil)
Summary
In 2013, Brazil's fishery production increased by 66% over the year 2012, from 1.5 Mt to 2.5 Mt. the Food and Agriculture Organisation of the United Nations (Food and Agriculture Organisation [FAO], 2004) still regards Brazil as a small global producer, considering the country’s hydrological potential and diversity, with more than 8000 km of coastline. According to Medale, Lefèvre, and Corraze (2003), fish, shrimp and molluscs occupy an important place in human nutrition. These marine foods are a valuable source of high quality protein, minerals, vitamin D, polyunsaturated fatty acids (PUFAs) and essential fatty acids, omega-3s (n3s), such as αlinolenic acid (18:3n3), eicosapentaenoic acid (EPA, 20:5n3) and docosahexaenoic acid (DHA, 22:6n3). The well-documented health benefits of omega-3s include a reduction of risk factors associated with cardiovascular diseases, hypertension, general. Technology, v. 40, e39351, 2018 inflammation, depression, asthma, psoriasis and others (Simopoulos, 2008; Calder & Yagoob, 2009; Hoffmire, Block, Thevenet-Morrison, & Wijngaarden, 2012; Mohamad, Baharuldin, Moklas, Fakurazi, & Muhammad, 2014)
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