Enzyme-based extraction
Cleaner, water-efficient biochemistry that replaces harsh alkaline processing and keeps the bioactives intact.
Turning underutilized brown seaweed into precise biological solutions.
The problem
Africa's coastlines carry vast stocks of brown seaweed that go unharvested — while farmers face depleted soils, costly imported inputs, and post-harvest losses that swallow a third of every crop.
Our response
So we built a zero-waste biorefinery. One local biomass, split by enzymes instead of harsh chemicals, becomes five biological products for crops, livestock, aquaculture and fresh produce. Nothing leaves the system.
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About SAB
A new chemistry for a coastal bioeconomy.
SAB Biomanufactures converts underutilized brown seaweed from Tanzania’s coastline into high-value biotechnology products. We replace conventional chemical extraction with a cleaner enzyme-based process that drastically reduces water use, eliminates harsh solvents, and lowers emissions.
Our zero-waste biorefinery uses every part of the seaweed. Bioactive extracts power crop, livestock, aquaculture and food applications, while the remaining biomass is fermented into probiotic cattle feed. Nothing leaves the system.
90%
less harsh chemical use than conventional alkaline processing
5
product lines drawn from a single biomass
0
waste streams sent to landfill
Zero-waste biorefinery
Every fraction of the seaweed is converted into value. What remains is fermented into probiotic cattle feed.
Circular by design
Locally sourced brown seaweed becomes a portfolio of crop, livestock, aquaculture and food-grade products.
Made in Tanzania
Built on local marine resources, advancing Africa’s blue economy and creating green coastal jobs.
Our technology
One biomass, a whole biorefinery.
An enzyme-based process unlocks the full value of brown seaweed — cleanly, efficiently, and with nothing left behind.
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Locally sourced brown seaweed
Underutilized brown seaweed is collected along the Tanzanian coast, from stocks that would otherwise go unharvested — turning a neglected marine resource into coastal income.
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Low-temperature enzymatic processing that preserves bioactive integrity
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Drastically reduced water draw versus conventional alkaline extraction
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No caustic solvents, and a correspondingly lower emissions profile
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Every fraction routed to a product — a genuinely closed material loop
Our products
Five product lines from one feedstock.
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Crop biostimulantsEnquire about this
Crop Biostimulant
Proven across every stage of crop development, from root initiation and germination through to fruit quality and final yield. The seaweed extract improves root growth, nutrient uptake, drought tolerance and overall productivity.
Built for the people moving African agriculture forward.
Benefitsfor investors
A differentiated platform built for commercial scale, not just the lab.
- Engineered for scalable manufacturing and practical deployment from locally sourced feedstock — five revenue lines off a single biomass.
- Addressing the rising cost of imported agricultural inputs, tightening residue regulations, and the limits of existing chemical processing.
- A growing African market with clear demand for affordable, locally made biological inputs.
Why SAB
Care built into the science.
A platform designed for people, planet and performance — in that order, and without trading any of them away.
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Cleaner chemistry, on purpose
Enzyme technology protects the bioactives and the environment at the same time. The gentler route is also the better-performing one.
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Science that solves real problems
Rooted in rigorous R&D, but measured against what actually changes for a farmer at the end of a season.
03
Value that stays on the coast
Underused local biomass, local processing, local jobs. Building coastal value chains rather than exporting raw material.
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Affordable by design
Priced for accessibility across African markets, not just export buyers.
02
Climate resilience
Biostimulants and feed solutions that help farmers adapt to harsher seasons.
03
Africa's blue economy
Unlocking the value of marine biomass that currently goes to waste.
04
Women-led innovation
Built and run by a team advancing women's leadership in African biotech.
Impact
Measurable progress for people, oceans and climate.
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Farmers engaged100%
Women-led innovation0
Waste to landfill0
Product verticalsClimate-resilient agriculture
Biostimulants that help crops hold yield through drought and heat stress.
Green coastal jobs
Livelihoods built on a circular bioeconomy rather than extraction.
Africa's blue economy
Unlocking the value of marine biomass that currently goes unharvested.
Global goals
Aligned with the UN Sustainable Development Goals.
SDG 01No Poverty
Creating income for coastal communities through sustainable seaweed value chains.
SDG 02Zero Hunger
Raising crop, livestock and aquaculture productivity to strengthen African food systems.
SDG 13Climate Action
Cutting emissions with clean enzyme processing and reducing methane via livestock supplements.
Partners & supporters
Working alongside the institutions building Africa’s next generation of agricultural and marine biotechnology.
Our team
Great science starts with purpose-driven people.
A small team combining marine biochemistry, process engineering and a stubborn commitment to building it here.
Karen Nielsen
0120+ years in global agribusiness outreach. Founder of Global Dairy Outreach and Outreach Program Manager at the University of Wisconsin.
Daud Nzunda
02Builds SAB's brand and go-to-market strategy, carrying the story of Africa's blue economy to partners, buyers and funders.
Winifrida Mwasyika
03Runs day-to-day operations and grounds product development in agronomic reality, from field trials through to farmer adoption.
Grace Bosco
04Leads SAB's enzyme-based extraction programme and the build-out of the zero-waste biorefinery, from bench chemistry through to commercial formulation.
We are hiring scientists and process engineers.
If you want to take marine biochemistry all the way to a product on a farm, we would like to hear from you.
Get in touch
Be part of the next chapter in African biotechnology.
Partners, investors, researchers and customers — we would like to hear from you.