Proximal and fatty acid analysis in Ostrea chilensis, Crassostrea gigas and Mytilus chilensis (Bivalvia: Mollusca) from southern Chile

Oysters and blue mussels are important hydrobiological resources for aquaculture. In Chile, they are farming on the Chiloé island, where around 18% of the world’s mussels are produced, however, their nutritional dynamics are largely unknown. For this reason, the objective of this study was to determ...

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Bibliographic Details
Published in:PloS one 2022-07, Vol.17 (7), p.e0270825-e0270825
Main Authors: Valenzuela, Andrea, Oyarzún, Pablo A, Toro, Jorge E, Navarro, Jorge M, Ramírez, Oscar, Farias, Ana
Format: Article
Language:English
Subjects:
Analysis
Aquaculture
Aquaculture development
Biochemical composition
Biology and Life Sciences
Carbohydrates
Composition
Crassostrea
Crassostrea gigas
Diet
Earth Sciences
Fatty acids
Food
Functional foods & nutraceuticals
Laboratory animals
Lipids
Medicine and Health Sciences
Mollusca
Mollusks
Mussels
Mytilus chilensis
Nitrogen
Ostrea chilensis
Oysters
Polyunsaturated fatty acids
Properties
Proteins
Shellfish
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Summary:Oysters and blue mussels are important hydrobiological resources for aquaculture. In Chile, they are farming on the Chiloé island, where around 18% of the world’s mussels are produced, however, their nutritional dynamics are largely unknown. For this reason, the objective of this study was to determine the proximal biochemical composition and the fatty acid profile in the Chilean oyster ( Ostrea chilensis ), the Pacific oyster (C rassostrea gigas ) and the Chilean mussel ( Mytilus chilensis ), to perform an intra and interspecific comparison. Shellfish sampled in winter were characterized by a high protein content, followed by medium values for lipid content and a low carbohydrate content compared to similar species in Europe. Also, oysters and mussels were found to be rich in omega-3 long chain polyunsaturated fatty acid (n-3 LC-PUFA), so they can be considered excellent functional food option for a healthy human diet. Their high contribution of n-3 LC-PUFA ranged between 5.2–12.9 μg FA mg -1 dry weight with high n-3/n-6 ratios, which depends on both the species and the on-growing location. Both taxa can be considered a plausible option to promote a healthy diet of marine origin in future generations. Also, these results could benefit the projection and development of aquaculture of these mollusks.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0270825