The red in your strawberry yogurt is likely a petroleum derivative. The red in a major brand's prototype, according to Michroma, is now a fungal metabolite. The San Francisco-based startup has raised $6.4 million to replace synthetic dyes with ingredients brewed in bioreactors, betting that precision fermentation can finally deliver natural colors that survive industrial food processing [Forbes, February 2023].
A bet on stability, not just sustainability
Natural colorants from sources like beetroot or paprika have long frustrated food manufacturers. They fade with heat, shift with pH, and lack the shelf-stable vibrancy of synthetic dyes. Michroma's initial product, a red pigment branded Red+, is engineered for stability. The company claims it maintains color through pasteurization, baking, and extrusion processes that degrade plant-based alternatives [Forbes, February 2023]. This performance wedge targets the core technical pain point, not just the marketing appeal of 'natural.' The underlying platform uses engineered filamentous fungi, a workhorse of industrial biotechnology, to produce the pigments via fermentation.
The manufacturing partnership that changes the math
For a capital-intensive biotech, scaling production is the primary bottleneck. Michroma's most significant strategic move to date is a manufacturing partnership with CJ CheilJedang, a South Korean conglomerate with a $23 billion fermentation business [Forbes, February 2023]. The deal, announced in 2025, provides Michroma with access to industrial-scale fermentation capacity and expertise, a critical asset for moving from pilot batches to commercial volumes [AgFunderNews, September 2025]. CJ CheilJedang is also a named investor in Michroma's seed round, aligning financial and operational interests. The company currently outsources some production to partners in Europe while working toward U.S. regulatory approvals for its colors.
The road from prototype to pantry
Michroma reports it is already prototyping its Red+ colorant with top global food, beverage, and cosmetic companies [michroma.co]. This early engagement with major brands is a standard traction signal in ingredient biotechnology, but commercial revenue hinges on two near-term gates: securing regulatory clearances, particularly in the U.S., and successfully scaling production through the CJ CheilJedang partnership. The company's broader ambition is to expand its fungal biofactory platform beyond colorants into other high-value ingredients, including mycoprotein and flavors [Forbes, February 2023].
The competitive and technical landscape presents clear hurdles. Rivals like Phytolon and Chromologics are pursuing similar microbial routes to natural colors. The capital required to build or retrofit fermentation facilities is immense, making the CJ CheilJedang alliance a non-optional advantage. Furthermore, consumer acceptance of 'fungal-derived' ingredients, while growing, still requires clear communication compared to simpler 'plant-based' claims.
| Metric | Detail | Source |
|---|---|---|
| Seed Funding | $6.4 Million | [Forbes, February 2023] |
| Lead Investor | Supply Change Capital | [Forbes, February 2023] |
| Key Strategic Partner | CJ CheilJedang | [AgFunderNews, September 2025] |
| Team Size (2023) | 15 employees (estimated) | [Forbes, February 2023] |
| Accelerator Backing | IndieBio, The Mills Fabrica | [IndieBio], [The Mills Fabrica] |
Michroma's $6.4 million seed round was led by Supply Change Capital, a foodtech VC associated with General Mills, with participation from Be8 Ventures and CJ CheilJedang [Forbes, February 2023]. The company later secured an additional €250,000 (approximately $289,000) through The Future is Fungi Award in 2025 [AMI, 2025]. With a team of roughly 15 post-funding and operations split between San Francisco and Argentina, the next proof point is straightforward: can it convert its pipeline of brand prototypes into signed offtake agreements, now that the manufacturing path is charted? The bet is that in the race to clean up food labels, stability will be the currency that buys shelf space.
Sources
- [Forbes, February 2023] Fungi-Powered Ingredients Startup Michroma Promising To Remove Petroleum From Food Colorings Raises $6.4 Million In Venture Funding | https://www.forbes.com/sites/douglasyu/2023/02/01/fungi-powered-ingredients-startup-michroma-promising-to-remove-petroleum-from-food-colorings-raises-64-million-in-venture-funding/
- [AgFunderNews, September 2025] Michroma and CJ CheilJedang partner to scale commercial production of natural colors via fermentation | https://agfundernews.com/michroma-and-cj-cheiljedang-partner-to-scale-commercial-production-of-natural-colors-via-fermentation
- [michroma.co] michroma - Next generation of natural ingredients. | https://www.michroma.co/
- [IndieBio] Michroma - IndieBio - #1 in Early Stage Biotech | https://indiebio.co/company/michroma/
- [The Mills Fabrica] Michroma - The Mills Fabrica | https://www.themillsfabrica.com/portfolio_incubatees/michroma/
- [AMI, 2025] US- & Argentina startup Michroma wins €250k investment with The Future is Fungi Award 2025 | https://appliedmicrobiology.org/resource/us-argentina-startup-michroma-wins-250k-investment-with-the-future-is-fungi-award-2025.html