Mango Materials — Gas Fermentation ISRU (PHA Biopolymer)¶
FO Project: 106654
Title: Enabling in-situ resource utilization in space through gas fermentation
TRL: 4→6
Period: 2020-12-01 – 2024-12-31
Lead Org: Mango Materials Inc. — Oakland, California
Set-Aside: Women-Owned Small Business (WOSB)
PI: Allison Pieja (founder/CEO); Co-Is: Joseph Lampe, Johan Vanneste, Junko Marr
Primary TX: TX07.1.3 Resource Processing for Production of Mission Consumables
Investigated: 2026-04-06 (Session 4)
Last updated: 2026-04-07 (Session 94) — TechPort formally Closed Out Apr 2025; BEAM Circular 130L pilot bioreactor at Vacaville; YOPP™ brand; BioMADE closing Jun 2026; no new funding
What Was Tested¶
Mango Materials operates a membrane-based bioreactor (MBR) that feeds methanotrophic bacteria (organisms that eat methane) and converts the methane into polyhydroxybutyrate (PHB/PHA) — a biodegradable biopolymer usable as feedstock for 3D printing.
Space application: In a future ISRU scenario, waste methane from habitats (metabolic, propellant), or Martian atmospheric methane could be converted by the bioreactor into structural bioplastic. This addresses both waste processing and in-situ manufacturing in a single system.
FO test (2020–2024): Parabolic flights aboard ZERO-G's G-Force One to validate the membrane gas delivery system in microgravity — specifically, whether gas-liquid mass transfer through the membrane bioreactor functions correctly without gravity-driven convection. Result: TRL4→6 confirmed. A June 2024 Mines/Mango joint parabolic flight also validated 3D printing compatibility.
NASA Funding Chain¶
| Award | Amount | Period | Description |
|---|---|---|---|
| 80NSSC21C0620 (SBIR/STTR) | $3.00M | 2021–2023 | Novel membrane-based bioreactor for closed-loop system |
| 80NSSC17C0026 (SBIR Phase II) | $1.12M | 2017–2020 | Membrane bioreactor for PHA from methane |
| NNX16CA35P (SBIR Phase I) | $123.2K | 2016–2017 | Membrane bioreactor for PHA from methane |
| FO 106654 | ~$500K est. | 2020–2024 | Parabolic flight tests (FO service contract) |
Total NASA tracked: ~$4.25M (three SBIR/STTR awards visible; FO contract not separately visible in USASpending)
Downstream: Commercial Scale-up¶
BioMADE Award (October 2024)¶
BioMADE — a DoD-funded Manufacturing USA bioindustrial manufacturing institute — announced $26.9M across 17 projects in October 2024. Mango Materials leads one of those 17 projects:
"Gas Fermentation to Enable Decentralized Local Biomaterials Manufacturing"
Team: Mango Materials (PI), University of California Davis, Black & Veatch
Timeline: through June 2026
Goal: Scale up methane-to-PHA biomanufacturing to enable decentralized, low-resource biodegradable plastic production
Specific Mango award amount within the $26.9M total was not disclosed publicly. Scale: advancing from 5,000L "Launch Facility" fermentation capacity toward full commercial scale.
Vacaville Launch Facility — Operational (Nov 2023)¶
Ribbon cutting: November 7, 2023 at Easterly Wastewater Treatment Plant, Vacaville, CA. This is the first production-scale methane-to-PHA gas fermentation facility, co-located with a wastewater treatment plant (methane source).
BEAM Circular partnership (Jan 15, 2026): BEAM Circular acquired a 130-liter pilot-scale gas fermentation bioreactor — described as "one of the most advanced units of its kind in the U.S." — and is temporarily housing it at Mango's Vacaville facility while the California Bioeconomy Innovation Campus in Stanislaus County is under construction. Both companies are now offering fee-based research and pilot services to other gas fermentation innovators. The Vacaville facility is becoming a shared biomanufacturing platform, no longer just Mango's own pilot.
Commercial Market (Terrestrial Primary)¶
Mango's primary commercial focus is terrestrial: capturing waste methane from landfill gas and wastewater treatment facilities and converting it to PHA biopolymer. PHA is biodegradable in marine and terrestrial environments — addressing the plastics crisis. Partners include Black & Veatch (water infrastructure) and now BEAM Circular. CEO Molly Morse named to Biofuels Digest "Bioeconomy 500" (Sep 2025).
VC round (Jul 2025): Tracxn/PitchBook show an unattributed VC round dated July 28, 2025. Amount not disclosed.
YOPP™ Brand¶
Mango Materials markets its methane-derived PHA pellets under the YOPP™ brand (YOPP+). The pellets are versatile for fibers, rigid goods, and molded products. This is the commercial product name that downstream partners (Natura, Stella McCartney, Allbirds) incorporate into their goods.
Commercial Products — First Revenue¶
Mango Materials has shipped its first commercial products made from methane-derived PHA biopolymer:
- Natura soap dish — first commercialized product, for Brazilian beauty company Natura (former Body Shop brand owner). Available for purchase.
- Stella McCartney sunglasses — luxury fashion brand collaboration via Thelios, using Mango's biodegradable bio-based pellets.
- Allbirds carbon-negative shoe — biopolymer incorporated into Allbirds' M0.0NSHOT shoe, marketed as "net-zero carbon."
These are the first physical consumer products from a NASA FO-validated technology reaching retail shelves. The products are small-volume/premium, but they demonstrate a complete pipeline from NASA SBIR → FO microgravity validation → production facility → consumer goods.
The space ISRU application is validated (TRL6 in microgravity) but secondary to terrestrial markets. Space commercialization would require a Gateway/Mars ISRU program and likely 10–20 year timeline.
Technology Maturation Chain¶
Stanford PhD research: Allison Pieja, methane-to-PHA fermentation
↓
Mango Materials founded ~2010
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NASA SBIR Phase I ($123K, 2016) — initial space application scoping
↓
NASA SBIR Phase II ($1.12M, 2017–2020) — bioreactor for space
↓
NASA SBIR/STTR ($3M, 2021–2023) — closed-loop system development
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FO 106654 ($~500K, 2020–2024) — parabolic microgravity validation [TRL4→6]
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BioMADE DoD-funded scale-up consortium (Oct 2024, through June 2026)
↓
Launch Facility: 5000L fermentation capacity → commercial scale
Key Insight: Space Validation Enables Terrestrial Investment¶
The FO microgravity validation created a scientifically credible claim that the technology works in space — which added credibility to the NASA ISRU angle. But the commercial investors (BioMADE/DoD) care primarily about the terrestrial waste-to-bioplastic market. The space validation is a differentiator, not the commercial driver.
Archetype: FO validates space feasibility → commercial scale-up happens primarily in terrestrial market → space application deferred. The NASA funding chain (SBIR → FO) was the R&D ladder; the commercial runway is terrestrial.
Outcome Category¶
Commercial scale-up with first revenue (terrestrial primary, space ISRU secondary). BioMADE DoD consortium funding confirms commercial legitimacy. 5000L facility scaling up. First consumer products shipped (Natura, Stella McCartney, Allbirds). Space application validated but commercialization timeline unclear.
Timeline¶
| Year | Event |
|---|---|
| ~2010 | Mango Materials founded, Oakland CA |
| 2016 | First NASA SBIR Phase I ($123K) |
| 2017 | NASA SBIR Phase II ($1.12M) |
| 2020 | FO contract begins; SBIR/STTR $3M |
| 2024 | FO parabolic flights completed; TRL4→6 confirmed; FO closed out |
| Nov 2023 | Vacaville Launch Facility ribbon cutting (Easterly WWTP) |
| Oct 2024 | BioMADE: $26.9M across 17 projects, Mango leads one through June 2026 |
| Jul 2025 | Undisclosed VC round (Tracxn/PitchBook) |
| Sep 2025 | CEO Molly Morse named to Bioeconomy 500 |
| Jan 2026 | BEAM Circular partnership — 130L pilot bioreactor at Vacaville; Stanislaus County Innovation Campus under construction |
| 2024–2026 | First commercial products ship under YOPP™ brand: Natura soap dish, Stella McCartney sunglasses, Allbirds shoe |
| Apr 2025 | TechPort [106654] formally Closed Out (view count 1,617) |
| Jun 2026 | BioMADE project completion target |
Confidence¶
- FO parabolic tests completed, TRL4→6: confirmed (TechPort, NASA press)
- NASA SBIR/STTR funding ~$4.25M: confirmed (USASpending)
- BioMADE participation: confirmed (BioMADE press release, Mango Materials website)
- Specific BioMADE award amount: unknown (total $26.9M across 17 projects; Mango's portion not disclosed)
- Vacaville Launch Facility operational Nov 2023: confirmed (company press)
- BEAM Circular partnership Jan 2026: confirmed (company press)
- Commercial products (Natura, Stella McCartney, Allbirds): confirmed (company website, Stella McCartney/Thelios page, Allbirds press)
- VC round Jul 2025: suggestive (Tracxn/PitchBook; amount undisclosed)
- YOPP™ brand for PHA pellets: confirmed (company website, press)
- BEAM Circular 130L bioreactor at Vacaville: confirmed (Turlock Journal, Jan 2026)
- Stanislaus County Innovation Campus under construction: confirmed (Turlock Journal)
- TechPort [106654] Closed Out Apr 2025: confirmed (TechPort API, lastUpdated 2026-02-06)
- BioMADE on track for June 2026: confirmed (no delay announcement)
- Space ISRU commercialization: speculative
Cross-references¶
- Henry Ford Health System — same FO era (health/biology focus), different commercial trajectory
- fo-portfolio-tracker.md