A sulfated polysaccharide, fucans, isolated from brown algae Sargassum vulgare with anticoagulant, antithrombotic, antioxidant and anti-inflammatory effects

► A polysaccharide from algae Sargassum vulgare (SV1) possess higher anticoagulant activity. ► It promoted direct inhibition of thrombin enzymatic activity and stimulated the enzymatic activity of FXa. ► SV1 displays the scavenging activity on DPPH.