Table 2.

Specific Chemical Compounds in Red Seaweeds.

Red Seaweed Species	Chemical Compound						References
	Phenolic	Polyphenol	Polysaccharide	Carotenoids	Flavonoids	Others
Porphyra sp.			✓			Iron, Vitamin B12, Phycoerythrin, Phycocyanin	[42]
Gelidium amansii						Glucose, Galactose, 3,6-AHG	[43]
Gracilaria gracilis				✓		Lipid, Sterol, Phycoerythrin, Phycocyanin	[44]
Gracilaria verrucosa	✓	✓			✓	Steroid, Saponin, Quinones	[45,46]
Gracilariopsis chorda						Arachidonic acid	[47]
Hypnea musciformis	✓					Carbohydrate, Protein, α-tocopherol, L-ascorbic acid	[48]
Gloiopeltis tenax	✓					Vanillylacetone, Fatty acids, Tetradecanoic acid, Linoleic acid, Oleic acid	[49]
Eucheuma cottonii					✓	Steroid, Alkaloid, Triterpenoid	[50]
Kappaphycus alvarezii	✓				✓	Alkaloid, Carbohydrate, Terpenoid	[51]
Pyropia orbicularis	✓			✓		Phycocyanin	[52]
Ahnfeltia plicata	✓				✓	Alkaloid, Amino acid, Tannin, Coumarins	[53]