Table 1.

Specific chemical compounds of brown seaweeds.

Brown Seaweed Species	Chemical Compound						References
	Phenol	Polyphenol	Polysaccharide	Carotenoids	Flavonoids	Others
Saccharina japonica	✓					γ-aminobutyric acid	[23]
Undaria pinnatifid		✓	✓		✓	Amino acid, Methacrylic acid	[24]
Alaria esculenta		✓					[25]
Dictyota menstrualis	✓						[26]
Colpomenia sinuosa	✓				✓	Steroid, Alkaloid	[27]
Fucus spiralis						Unsaturated fatty acid	[28]
Ecklonia cava		✓					[29]
Pelvetia siliquosa						Fucosterol	[30]
Eisenia arborea		✓					[31]
Laminaria digitata						Hexanal	[32]
Sargassum fusiforme	✓		✓		✓	alginic acid	[33]
Sargassum muticum	✓		✓	✓		Fatty acid, Terpenoid, Sterols	[34]
Sargassum naozhouense						carbohydrate, Protein	[35]
Sargassum swartzii	✓				✓	Terpenoid, Steroids, Coumarin, Sterols, Oxysterols	[36]