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The marine macroalgae produce a collection of bioactive polysaccharides, of which the sulfated heteropolysaccharide fucoidan produced by brown algae of the class Phaeophyceae has received worldwide attention because of its particular biological actions that confer nutritional and health benefits to humans and animals. The biological actions of fucoidan are determined by their structure and chemical composition, which are largely influenced by the geographical location, harvest season, extraction process, etc.
Marine Macroalga | Chemical Composition/Structure | Reference |
---|---|---|
Fucus evanescens | ([→3)-α-L-Fucp(2,4O SO3−)-(1→4)-α-L-Fucp(2OSO3−)-(1→])n | [10] |
Sargassum horneri | repeating →3-α-l-Fucp(2 SO3−)-1→4-α-l-Fucp(2,3SO(3)(-))-1→ fragment, with insertions of →3-α-l-Fucp(2,4SO(3)(-))-1→ fragment | [11] |
Laminaria longipes | [→3)-α-l-Fucp-(2SO(3)-)-(1→4)-α-l-Fucp-(1→2)-α-l-Fucp-(4 SO3−)-(1→]n | [12] |
Laminaria hyperborea | (1→3)-α-L-fuco-pyranose (31.9%) to be the dominant residue, followed by 1→2-linked (13.2%) and 1→4-linked (7.7%) fuco-pyranose | [13] |
Fucus evanescens | ([→3)-α-L-Fucp(2,4O SO3−)-(1→4)-α-L-Fucp(2OSO3-)-(1→]n) | [10] |
Ascophyllum nodosum | [→3)-α-l-Fuc(2SO3−)-(1→4)-α-l-Fuc(2,3diSO3−)-(1]n | [6] |
Fucus evanescens | [→3)-α-l-Fucp(2SO3−)-(1→4)-α-l-Fucp(2SO3−)-(1→]n | [14] |
Fucus distichus | [→3)-α-l-Fucp-(2,4-di-SO3−)-(1→4)-α-l-Fucp-(2SO3−)-(1→]n | [15] |
Macroalgal Species | Extraction Method | Extraction Yield/Efficiency | Reference |
---|---|---|---|
Ascophyllum nodosum | Microwave-assisted extraction | 16.08% | [37] |
Fucus vesiculosus | Pressurized liquid extraction at high temperature | 25.99 ± 2.22% | [38] |
Fucus vesiculosus | Microwave-assisted extraction | 18.2 ± 1.4% | [39] |
Fucus vesiculosus | Autohydrolysis process | 16.5 ± 1.2% | [39] |
Fucus vesiculosus | Microwave-assisted extraction | 18.22% | [40] |
Nizamuddinia zanardinii | Ultrasound-assisted extraction | 3.51% | [41] |
Sargassum myriocystum | Enzyme-assisted extraction | 6.2% | [33] |
Turbinaria decurrens | Soaking in chloroform/methanol, sequential extraction in CaCl2, HCl | 5.58% (crude) 1.28% (purified) |
[34] |
Sargassum ilicifolium | Probe sonication–microwave assisted extraction method Hot water extraction method |
8 ± 0.9% 6 ± 0.5% |
[42] |