Radical-scavenging activity of Aegean Sea marine algae
2006; Elsevier BV; Volume: 102; Issue: 3 Linguagem: Inglês
10.1016/j.foodchem.2006.05.036
ISSN1873-7072
AutoresRoger Nahas, Dennis Abatis, Maria Anagnostopoulou, Panagiotis Kefalas, Constantinos Vagias, Vassilios Roussis,
Tópico(s)Seaweed-derived Bioactive Compounds
ResumoIn the present work, thirteen algae from the Aegean Sea were examined for radical-scavenging activity (RSA) using the DPPH and chemiluminescence (CL) tests. Extracts of the brown alga Taonia atomaria exhibited the best RSA in comparison to the extracts of the other investigated species and approached the activity of powerful antioxidant standards. Column chromatography separation of T. atomaria extract, followed by preparative HPLC, resulted in the isolation of six metabolites, which were identified by spectral analyses (1H NMR, 13C NMR and MS). The isolated metabolites taondiol, isoepitaondiol, stypodiol, stypoldione, sargaquinone and sargaol were found to possess marked RSA.
Referência(s)