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US 2002/0172686 A1Published application
Anti-viral agents prepared from sea lettuce as raw material
OwnerShin Hirayama, Ryohei Ueda +2inventors
InventorsShin Hirayama, Ryohei Ueda, Masashi Miyasaka, Kiyoshi Sugata
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Abstract
Antiviral agents containing sea lettuce or an organic solvent extraction fraction thereof as an active component, and feeds containing the antiviral agents are disclosed. In addition, a process for preparing the antiviral agents is disclosed.
Claims4
Antiviral agents comprising sea lettuce or an organic solvent extraction fraction thereof as an active component.
A process for preparing antiviral agents comprising:
- a step of extracting sea lettuce with water for removing water-soluble components from the collected sea lettuce;
- a step of extracting a lipophilic fraction from the residue obtained by the step of extracting with water;
- and
- a step of drying the lipophylic fraction obtained from the step of extracting with organic solvent.
1 more element
Dependencies are inferred from the claim text.