YPC91™ — Yeast Protein Concentrate from The91API. Complete amino acid profile. Hypoallergenic. Produced through precision fermentation for the next generation of food and nutrition brands.
YPC91™ is the protein fraction extracted from Saccharomyces cerevisiae — the world's most studied and trusted microorganism. After precision fermentation, yeast cells are harvested, disrupted, and processed to yield a high-purity protein concentrate with an exceptional nutritional profile.
Unlike plant proteins that depend on agricultural cycles, yeast grows in fermentation tanks using sustainable feedstocks — delivering predictable, scalable, climate-independent protein production at any scale.
Technical Overview
YPC91™ sits at the intersection of complete nutrition and clean formulation — offering what no single plant protein can match.
All 9 essential amino acids including leucine, lysine, methionine, and threonine — closer to egg and dairy protein than any single plant source.
True digestibility of 80–95%. Small cell size and bioavailable peptides ensure your body absorbs what's on the label — unlike many plant proteins at 55–70%.
Excellent emulsification, foaming, water-binding, oil-binding, and gelation — comparable to egg white protein. Performs where plant proteins fail.
Fermentation tanks scale linearly. No seasonal dependencies, no weather risk. Consistent COA batch after batch — exactly what B2B brands need.
10× less land use, minimal water footprint, ability to run on agricultural by-product streams. The most carbon-efficient complete protein available today.
Short, recognizable ingredient declaration. No soy, gluten, dairy. Non-GMO options. Neutral color and mild taste. Ideal for transparent brand positioning.
YPC91™ contains all essential amino acids at levels that meet or exceed FAO/WHO reference patterns, making it nutritionally equivalent to animal proteins for most applications.
| Feature | YPC91™ | Pea / Soy |
|---|---|---|
| Complete AA Profile | ✓ All 9 EAAs | Partial |
| Digestibility | 80–95% | 55–85% |
| Allergens | None | Soy / Gluten |
| Solubility | Excellent | Poor–Fair |
| Taste | Mild, umami | Beany / earthy |
| Emulsification | Strong | Needs treatment |
| Seasonal dependency | None | High |
Curated S. cerevisiae strains selected for maximum protein expression and amino acid density.
Controlled bioreactor conditions optimise cell growth, pH, and temperature for peak yield.
Mechanical disruption releases intracellular protein without harsh chemical solvents.
Protein concentrated and separated through advanced downstream processing techniques.
Converted to fine powder with COA across amino acids, heavy metals, and microbial counts.
Its neutral taste, excellent functional behavior, and clean label status make YPC91™ one of the most versatile B2B protein ingredients available.
Functional Benefits by Application
Bakery Products
Retains moisture → softer crumb. Improves dough elasticity. Natural browning from amino acids.
Meat Analogues
Strong gelation and binding. Supports fiber formation during extrusion. Improves bite consistency.
Beverages & RTDs
Excellent solubility across pH ranges. No protein haze. Stable on shelf.
Nutritional Supplements
High PDCAAS. Hypoallergenic. Perfect for clinical, elderly, and sports formulas.
Request a sample, get a COA, or speak to our formulation team. We support brands from ingredient selection to scale-up.
The91API was founded at the intersection of biotechnology and food science with a singular mission: make complete, sustainable, bioavailable protein accessible at industrial scale through fermentation.
Global protein demand will grow 70% by 2050. Conventional agriculture cannot scale to meet that demand without catastrophic environmental consequences. We're building the alternative.
Through precision fermentation of Saccharomyces cerevisiae, The91API produces complete protein that is nutritionally equivalent to animal sources — but produced with a fraction of the land, water, and carbon footprint.
"Fermentation is not new. Using it to feed billions sustainably — that's the new frontier."
Sustainability Impact
2019
Founded with a single thesis: Saccharomyces cerevisiae can become the world's most efficient protein factory. R&D commenced with 200+ strain screenings.
2020
Proprietary strain family selected and IP-protected. Fermentation parameters dialled in for consistent 60%+ protein concentration.
2021
Scaled to 2,000-litre pilot batches. Third-party COA validated 64% crude protein with all 9 EAAs. PDCAAS confirmed at 0.92.
2022
First supply agreements signed. Moved to GMP-certified production facility. Collaboration with Lesaffre for advanced fermentation R&D.
2023–Now
Operating at 50,000-litre scale. Supply partnerships across India, UAE, and UK. Expanding into clinical nutrition and pet food applications.
Co-founder & CEO
Co-founder & CTO
Head of R&D
Head of Operations
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Whether you're sourcing for the first time or scaling a formulation, our team responds within 24 hours.
info@the91api.com
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