Aquaculture · Seaweed-based Materials — Zenbiochem — Zenbiochem
Platform 1 · Aquaculture feedstock

Seaweed-based functional materials

Macro-algae are among the most productive biomass sources on Earth. We harness their unique polysaccharide chemistries — agar, carrageenan, fucoidan, and ulvan — using tailored enzymatic depolymerisation to unlock value for bioplastics, cosmetics, and antimicrobials.

Active R&D
Red algae Brown algae Green algae

Seaweeds are cultivated in coastal and open-ocean aquaculture systems with minimal freshwater, land, and no synthetic fertilisers. Our proprietary enzyme cocktails depolymerise specific seaweed polysaccharides into defined oligomers and monomers.

Three verticals emerge: (1) Agar- and carrageenan-derived oligosaccharides as functional film-formers for bioplastic matrices; (2) fucoidan and phlorotannin fractions with antimicrobial and antiviral bioactivity; (3) alginate-based cosmetic actives with proven skin-barrier efficacy.

Key feedstocks
Gracilaria sp.Sargassum sp.Ulva lactucaLaminaria sp.
Key molecules
Agar oligomersκ-Carrageenan fragmentsFucoidan fractionsAlginate derivativesUlvan sulphates
Target markets
BioplasticsCosmeticsAntimicrobialsFood bioactives
Technology
Agarase / carrageenaseControlled depolymerisationAlgal cell wall fractionation
Applications table
Seaweed polymerEnzymeProduct classApplicationAdvantage
Agar (red algae)AgaraseAgarooligosaccharidesBioplastic film-former Biodegradable, tunable Tg
κ-Carrageenanκ-CarrageenaseNeo-carrageenan oligomersCrosslinker / gel matrix Sulphated bioactivity
Fucoidan (brown algae)Fucoidan lyaseFucoidan fractionsAntimicrobial, antiviral Broad-spectrum activity
AlginateAlginate lyaseOligo-alginatesSkin-barrier cosmetic Proven moisturisation
Ulvan (green algae)Ulvan lyaseUlvan sulphate oligomersAntimicrobial / biofilm Unique rhamnose backbone
Interested in seaweed-derived materials?

Contact us to discuss supply, collaboration, or custom fractions.

ZenBiochem Limited · Renewable Raw Materials
London BioScience Innovation Centre · 2 Royal College Street, London NW1 0NH · info@zenbiochem.com
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