Trace elements in wild edible Aplysia species: Relationship with the desaturation-elongation indexes of fatty acids

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Pereira, RB (Author) Other; Agostinho Almeida (Author) FFUP; David M Pereira (Author) FFUP; Silva, O (Author) Other; Paula B Andrade (Author) FFUP; Pinto, E (Author) Other; Patricia Valentao (Author) FFUP

Journal

Title: Chemosphere

Vol. 208

Pages: 682-690

ISSN: 0045-6535

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-00P-GFX

DOI: 10.1016/j.chemosphere.2018.06.034

Abstract (EN): The profile of essential and non-essential elements was traced in the edible sea hares Aplysia depilans Gmelin, Aplysia fasciata Poiret and Aplysia punctata Cuvier. Manganese (Mn), iron (Fe), zinc (Zn), copper (Cu) and selenium (Se) were identified as the major essential elements. Risk assessment evidenced that the levels of cadmium (Cd) and lead (Pb) did not exceed the maximum limit value established by the European Regulation, the contents of chromium (Cr), nickel (Ni) and arsenic (As) being also below the levels established by the FDA guide. A correlation between trace elements levels and desaturation-elongation indexes of fatty acids was found. While Cd, Se and molybdenum (Mo) seem to promote the desaturation-elongation process involved on the production of C20:4n-6c, Ni, Cr and Fe may potentiate the conversion of C18:3n-3c to C20:5n-3c. Furthermore, cobalt (Co), Ni and Cu appear to decrease Delta 9 desaturation index. Besides the suggested biosynthetic switch modulated by trace elements, the nutritional value of the species is further strengthened.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9