Pressurized liquid extraction (PLE) was utilized to extract fucoidan from brown seaweed.
High yield of fucoidan was obtained from PLE, when compared with the conventional method.
The structural characterization of crude polysaccharide confirms the presence of fucoidan.
Molecular weights of the extracted fucoidan were between 83.39–183.32 kDa.
The obtained crude fucoidan showed properties of high antioxidant and emulsifying.