Composition of phospholipids of white muscle of six tuna species |
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Authors: | Isabel Medina Santiago P Aubourg Ricardo Pérez Martín |
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Affiliation: | (1) Instituto de Investigaciones Marinas del CSIC, Eduardo Cabello 6, E-36208 Vigo, Spain |
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Abstract: | A comparative study of the phospholipids of white muscle of six of the comercially utilized tuna species, including quantitative
analyses of phospholipid classes and studies of the acyl composition of the major components. Plasmalogen compounds also were
identified and quantified. Choline and ethanolamine glycerophospholipids were the most abundant classes in all the samples,
as well as the only molecules containing plasmalogens (16∶0, 18∶0, and 18∶1 alkenyl ether chains). The patterns of fatty acid
distribution within each of the phospholipid classes showed general similarities in the species analyzed. However, ratios
between certain saturated and polyunsaturated fatty acids in different phospholipid classes showed remarkable diffences. The
high content of n−3 polyunsaturated fatty acids in the principal phospholipids, such as the plasmalogens, and taking into
account the fatty acids possible importance in human nutrition, indicates that the white muscle of tuna species may be a potentially
important dietary item. |
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Keywords: | |
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