Biotech in the textile industry

01Overview and value chain#

Markers EC: EU Strategy for Sustainable & Circular Textiles & REACH | OECD: Bio-based Materials, Industrial Biotechnology | Regulator: EPA (USA), REACH (EU), USDA-APHIS (USA)

Biotech in the textile industry replaces animal hides and petrochemical inputs with materials grown by fungi, bacteria and engineered cells. Mycelium-grown leather cuts lifecycle CO2e by around 80% versus bovine hide and reaches 40,000 Martindale abrasion cycles, matching mid-grade cowhide. Conventional dyeing consumes roughly 5 trillion litres of water per year and causes nearly 20% of industrial water pollution; DNA-encoded microbial dyeing removes up to 90% of that water and 70% of the energy. Biofabricated collagen materials now exceed 80% renewable carbon content at twice the tensile strength of traditional leather, while enzymatic biofinishing displaces harsh wet-chemistry in denim, biopolishing and scouring across the global mill base.

The key directions of biotech in the textile industry are:

1. Mycelium biofabrication (Mycelium Biofabrication): fungal root networks grown on agricultural byproducts into leather-grade sheets — 7–10 day grow cycles, ASTM D6400 compostable.
2. Biofabricated collagen and protein hides (Biofabricated Collagen Hides): recombinant and plant-protein leather analogues engineered to replicate animal collagen at over 80% renewable carbon.
3. Microbial bio-dyeing (Microbial Bio-dyeing): engineered bacteria and yeast that produce and fix pigment directly on fabric, replacing petrochemical dyes and indigo synthesis.
4. Enzymatic textile finishing (Enzymatic Textile Finishing): cellulase, laccase and pectinase biocatalysis for biopolishing, bio-scouring and denim abrasion at lower temperature and pH.

Sectoral value chain#

[strain design] ──> [fermentation] ──> [harvest] ──> [tanning / dyeing]
                          │
                  (living-cell growth)
                          │
                          ▼
[brand product] <─── [finishing] <─────┘

Value chain levels#

Cross-cutting technologies of the sector:

• Fine Mycelium and Rei-Tanning (Fine Mycelium & Rei-Tanning): tray-grown mycelium tuned to thickness, tanned without chromium.
• DNA-encoded pigment fermentation (DNA-Encoded Pigment Fermentation): colour genes reconstructed and implanted in chassis microbes.
• Enzymatic wet-processing (Enzymatic Wet-Processing): cellulase biopolishing and laccase denim abrasion at neutral pH.

02US#

The US leads biofabricated leather, anchored by three companies operating commercial-scale biology.

mycelium leather, collagen hides, brand partnerships#

• Bolt Threads: Mylo mycelium leather grown on sawdust in renewable-powered vertical farms; partners adidas, Kering, lululemon and Stella McCartney.
• MycoWorks: Reishi Fine Mycelium produced at the Union, South Carolina plant — the world’s first commercial-scale mycelium facility.
• Modern Meadow: INNOVERA biofabricated material, over 80% renewable carbon, twice as strong as traditional leather.

03CN#

China’s bio-textile capacity is concentrated in regenerated-cellulose fibre rather than next-generation biofabrication, leaving the mycelium-leather and microbial-dye frontier to US and EU players.

viscose and lyocell manufacturing base, bio-dye R&D#

• Regenerated-cellulose base: Sateri, Tangshan Sanyou and Ante Group operate the world’s largest viscose and lyocell capacity, supplying brands transitioning away from cotton and polyester.
• Domestic lyocell scale-up: national planning targets over 30% of global lyocell capacity by 2030, with NMMO closed-loop recovery as the environmental differentiator versus legacy viscose.
• Bio-dye and enzyme uptake: growing adoption of enzymatic biopolishing and bio-scouring in Chinese mills, though microbial pigment fermentation remains pre-commercial.

04EU#

The EU sets the regulatory and standards frame that pulls bio-textiles to market, and hosts the microbial-dye pioneers.

REACH chemistry, bio-indigo, joint ventures#

• Colorifix (Norwich): DNA-driven dyeing using engineered bacteria and yeast; Earthshot-recognised, with Woolmark and FACOL partnerships.
• Pili (Toulouse): bio-based indigo at over 90% purity, REACH-registered and commercially available in powder form.
• INNOVERA Europe JV: Modern Meadow and HELLER-LEDER launching European Dry White production in late 2026 to serve premium automotive and apparel tanneries.

05Leading companies and research institutes#

06Tech stack and innovations#

The stack merges synthetic biology, fermentation and enzymatic catalysis into one material-production pipeline.

1. Fine Mycelium and Rei-Tanning (Fine Mycelium & Rei-Tanning):
   • mycelium grown in trays from Ganoderma strains, tuned to thickness and surface.
   • tensile strength lifted from 7–9 MPa to 14–18 MPa (ISO 3376), with CO2 cut from 5.8 to 2.76 kg per square metre.
2. DNA-encoded pigment fermentation (DNA-Encoded Pigment Fermentation):
   • colour genes reconstructed from nature and inserted into non-pathogenic chassis microbes.
   • 16–20 hour on-site fermentation; fabric absorbs up to 98% of the pigment.
3. Enzymatic biofinishing (Enzymatic Biofinishing):
   • cellulase biopolishing, laccase denim abrasion and pectinase bio-scouring at neutral pH.
   • Rossari Biotech FY26 revenue of INR 2,396.4 crore, with the textile specialty division up 20% in Q4.

07Value chains and production pipelines#

Industrial pipeline of a biofabricated textile material (ISO 3376, ASTM D6400)#

┌───────────────────────────┐      ┌───────────────────────────┐
│ 1. Strain engineering     │ ───> │ 2. Fermentation           │
└───────────────────────────┘      └───────────────────────────┘
                                                  │
                                                  ▼
┌───────────────────────────┐      ┌───────────────────────────┐
│ 4. Rei-tanning / dyeing   │ <─── │ 3. Harvest & dehydration  │
└───────────────────────────┘      └───────────────────────────┘
              │
              ▼
┌───────────────────────────┐      ┌───────────────────────────┐
│ 5. Finishing & lamination │ ───> │ 6. Brand integration      │
└───────────────────────────┘      └───────────────────────────┘

Stage 1: Strain engineering

A production strain is built by reconstructing a colour or collagen gene and integrating it into a chassis microbe or mycelial host, yielding a stable inoculum.

Stage 2: Fermentation

The host is grown on renewable feedstock — sugars, glycerol or sawdust — in bioreactors or vertical-farm trays over 7–10 days, reaching billions of pigment-producing cells per millilitre or a dense mycelial mat.

Stage 3: Harvest and dehydration

Cell mass or pigment broth is recovered, pressed and dehydrated into a raw substrate; spent biomass is composted or deactivated to harmless organic residue.

Stage 4: Rei-tanning or dyeing

Mycelium sheets are rei-tanned with chrome-free agents to 14–18 MPa tensile strength, or fabric is dyed in standard equipment where microbes fix pigment directly onto the fibre.

Stage 5: Finishing and lamination

The substrate is coated, laminated or calendered to hit Martindale abrasion targets of 25,000–40,000 cycles and to pass colourfastness, ageing and finish-adhesion tests.

Stage 6: Brand integration

Finished hides, yarns or fabrics enter brand supply chains for footwear, handbags, denim and automotive interiors, closing a loop that is ASTM D6400 compostable within 24 weeks.