Abstract:Fucoxanthine was extracted from Sargassum fusiforme residue which was the Sargassum fusiforme ex－ tracted fucoidan.The extraction solvent and process extraction parameter were optimized by determining the ex－ traction efficiency in the present study.The results showed that the optimal procedure was obtained when normal hexane to acetone was 6 ∶ 1， ratio of solvent to dry flower was 30 ∶ 1 （mL/g），and horizontal shaking bath was at 55 ℃ for two times（60 min for each time）.The extraction efficiency of fucoxanthin were 0.68 mg/g（dry weight basis）. The whole process realized the recycling utilization of Sargassum fusiforme residue，and created greater economic benefits.