Species-specific growth factors for cultivated meat & seafood
Grow more cells. Spend less on growth factors.
MESOkine® is ORF's portfolio of animal-free, species-specific growth factors for cultivated meat and seafood production. Produced in barley, verified batch by batch, available at a cost that scales.
ISO 9001 certified, available for research and production scale
MESOkine® growth factors: species-matched, quote-based
| Protein | Species | Catalog # | Application |
|---|---|---|---|
| EGF | Porcine | MK0101 | Proliferation of epidermal and epithelial cells |
| FGF-2 | Bovine, Porcine | MK0201 | Stem cell culture, proliferation |
| IGF-1 LR3 | Bovine, Porcine | MK0301 | Proliferation, large-scale culture |
| IL-6 | Bovine | MK0401 | Immune response, hematopoiesis |
| LIF | Bovine | MK0702 | Reduces stem cell differentiation |
| PDGF-BB | Porcine | MK1001 | Promotes adipose stem cells and fat cells |
| Transferrin | Bovine | MK1601 | Iron delivery in cell culture |
| VEGF | Bovine | MK0501 | Endothelial proliferation, angiogenesis |
The cultivated meat challenge
Growth factors are the biggest cost barrier in your process
Research-grade prices work at micro-batch. At bioreactor scale they become a production-cost crisis. The economics of mammalian-expressed proteins simply do not scale to the volumes cultivated meat production demands.
Serum and animal-derived components introduce contamination vectors and supply-chain uncertainty. For cultivated food products seeking regulatory approval, every animal-derived input is a liability.
Bovine, porcine, and avian cells respond to their own species' signals - human-sequence proteins bind and signal inconsistently, so results don't translate from bench to bioreactor. Human-sequence factors also invite added regulatory scrutiny in a food product, and highly-purified human protein is expensive. MESOkine® gives you species-matched factors that sidestep all three.
How MESOkine® is made
Plant-produced, batch-verified, species-specific
Expressed in barley, purified for your cells
Recombinant growth factors are expressed in the endosperm of barley seed (Hordeum vulgare), then purified together with co-purified barley seed stabilizing proteins. The plant host is endotoxin-free by design. No animal-derived inputs at any stage of production.
Species-matched sequences - bovine, porcine
MESOkine® growth factors are available in the species sequences that actually drive proliferation in your target cells. Not human-sequence proxies. Bovine and porcine variants are matched per protein across the core growth factor portfolio - see the species breakdown in the table below.
Bioactivity verified against highly-purified reference standards
Each production batch is tested for bioactivity and confirmed to have comparable activity to a corresponding commercial source of highly purified growth factor. Independent bioassays are documented per vial. Validate once and scale with confidence.
Quality by the numbers
Rigorous quality built into every batch
Typical ED50 in cell-based proliferation assays for key MESOkine® growth factors.
ISO 9001:2015 certified. ORF Genetics is on the road to GMP.
Produced in barley with no animal-derived inputs at any stage.
Why MESOkine®
The purpose-built, animal-free choice at production cost
Animal-free, endotoxin-free host
Produced in barley seed. No mammalian expression system, no animal serum in production. Lower contamination risk and a cleaner regulatory story for cultivated-food approvals.
Species-matched for your target cells
Bovine and porcine sequences, not human-sequence proxies. Correct biological signaling means better proliferation results and fewer surprises when you scale from bench to bioreactor.
Priced for production, not just research
Molecular farming in barley scales differently from mammalian expression. The economics work at bioreactor volumes where conventional alternatives price teams out of viable production.
Batch-to-batch consistency you can build a process on
Each lot is bioactivity-tested and documented. Validate once, then scale with confidence. The co-purified barley seed stabilizing proteins extend shelf life and may enhance bioactivity.
Teams scaling cultivated meat rely on MESOkine®
Mosa Meat (Netherlands) and Vow (Australia) use MESOkine® growth factors in their cultivated-meat programs.
ORF Genetics and Vow presented Europe's first cultivated-meat tasting of Japanese quail in 2024, demonstrating the viability of MESOkine® at production scale.
ORF supplies companies worldwide through a distributor-led model, backed by 25 years of molecular farming expertise and ISO 9001:2015 certification.
Frequently asked questions
About the product
Each batch of MESOkine® is verified in commercially accepted cell-based bioassays and confirmed to have comparable bioactivity to a corresponding commercial source of highly purified growth factor. The co-purified barley seed stabilizing proteins may enhance bioactivity in standardized assays.
MESOkine® covers bovine (IL-6, LIF, Transferrin, VEGF), porcine (EGF, PDGF-BB), and combined bovine/porcine (FGF-2, IGF-1 LR3) sequences - see the species column in the product list above for each factor. Contact us for availability of species or proteins not listed.
ORF raised approximately EUR 5M in 2025 (targeting EUR 7M) to scale MESOkine® production capacity 14x by 2027. Production takes place in a geothermal-powered greenhouse in Iceland, on a built-for-scale barley molecular-farming platform. Contact our team to discuss your volume requirements.
MESOkine® is produced in an endotoxin-free barley host. Each vial states the exact growth-factor content. Purity data, molecular weight, and bioactivity assay results are documented in the Certificate of Analysis (CoA) available per lot. Datasheet (DS) and Safety Data Sheet (SDS) are available for each product on request.
Yes. MESOkine® is produced without animal serum and is suitable for serum-free cell culture applications. The barley seed extract formulation is carrier-free. Reconstitute in sterile buffered saline or a buffer of your choice.
Ordering is quote-based, no e-commerce account needed. A price list is available on request. Contact us or use the Request a quote form and we will respond with pricing and availability for your application. Orders are fulfilled through our worldwide distributor network.
ORF Genetics is ISO 9001:2015 certified and on the road to GMP. Each MESOkine® lot ships with a Certificate of Analysis. Datasheet, Safety Data Sheet, and Certificate of Origin are available for each product on request.
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Ready to source growth factors that scale with your process?
Talk to our scientists about your species, application, and volume requirements, or request a quote. Worldwide distribution, ISO 9001 certified.
Quote-based, no account needed. Datasheets on request.