Chemical composition of Padina fernandeziana (Phaeophyceae, Dictyotales) from Juan Fernandez Archipelago, Chile

Resumen

The chemical composition of the endemic brown macroalga Padina fernandeziana (Skottsberg & Levring) from Juan Fernández Archipelago, Chile was analyzed. Dry matter, crude protein, ether extract (lipids), carbohydrates, ash and total dietary fiber content of three samples were determined by standard methods. P. fernandeziana showed a high content of ashes (35-53%), carbohydrates (30-44%) and total dietary fiber (32-44% on dry basis). The content of proteins (6-8%) and lipids (1.8-2%) were low. The species showed temporal variations in the percentages of proteins, lipids, minerals, dietary fiber contents, and non-nitrogenous extracts. Padina fernandeziana presented comparable values to those of algae used actually as food in the region.