Anticancer and Antitumor Potential of Fucoidan and Fucoxanthin, Two Main Metabolites Isolated from Brown Algae

Figure 1

Two different types of homofucose backbone chains in fucoidans isolated from brown seaweed. R groups depict the potential places for attachment of noncarbohydrate (sulfate and acetyl groups) and carbohydrate (α-L-fucopyranose and α-D-glucuronic acid) substituents.