Natural fucoidans inhibit coronaviruses by targeting viral spike protein and host cell furin

[Violeta]

https://www.sciencedirect.com/science/article/abs/pii/S0006295223002794

September, 2023

Cheng-Wei Yang a 1, Hsing-Yu Hsu a 1, Yue-Zhi Lee a, et al

Fucoidans are a class of long chain sulfated polysaccharides and have multiple biological functions. Herein, four natural fucoidans extracted from Fucus vesiculosus, F. serratus, Laminaria japonica and Undaria pinnatifida

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  Fucoidan targets viral spike and host furin to block coronaviral entry.
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  Fucoidan inhibits viral entry and infection of HCoV-OC43 in vitro.
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  Fucoidan inhibits viral entry and infection of SARS-CoV-2 in vitro.
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  Fucoidan effectively inhibits infection by SARS-CoV-2 in vivo.

 

[Violeta]

A state-of-the-art review on fucoidan as an antiviral agent to combat viral infections​

Biswajita Pradhan a b, Rabindra Nayak, et al

September, 2022

https://www.sciencedirect.com/science/article/abs/pii/S0144861722004568

Many marine algae species contain large amounts of complicated structural sulphated polysaccharides that have been demonstrated to impede enveloped virus replication (Pereira & Critchley, 2020)

 

[andyguitar]

Many marine algae species contain large amounts of complicated structural sulphated polysaccharides that have been demonstrated to impede enveloped virus replication (Pereira & Critchley, 2020)

Yes they have.... bit about it here..