A novel bioactive peptide derived from enzymatic hydrolysis of Ruditapes philippinarum: Purification and investigation of its free-radical quenching potential

► Purified a novel antioxidant peptide from Ruditapes philippinarum (R. philippinarum). ► The sequence was identified as Ser-Val-Glu-Ile-Gln-Ala-Leu-Cys-Asp-Met. ► The peptide scavenged hydroxyl, DPPH, alkyl and superoxide radicals.