Pioneering the Future of Clean Extraction
What We Do
At Amaranthus Biorefinery, we turn fruit waste into natural value.
Using proprietary supercritical CO₂ extraction, we convert citrus peels and native botanicals into high-purity, solvent-free extracts like limonene and diosgenin.
We combine:
- 🌿 Green chemistry that protects people and the planet
- ♻️ Circular business models that empower local communities
- ⚙️ Modular biorefinery tech that scales anywhere, quickly and affordably
Our products power solutions in nutraceuticals, pharma, wellness, and clean-label consumer goods — all without toxic residues.
Our Values
Sustainability
We design every process to reduce emissions, water use, and waste — aiming for carbon-negative outcomes.
Equity
We operate through cooperative ownership, ensuring fair income and empowerment for local producers and waste collectors.
Innovation
We continuously improve our tech, from modular engineering to bioactive preservation — pushing the boundaries of green extraction.
Transparency
From supply chains to product composition, we build traceable systems that earn trust.
Mexican Engineering, Global Impact
We are proudly rooted in Mexico and committed to delivering world-class solutions from local talent and resources.
Years of Expertise & Professionalism
Founded in 2016, Amaranthus Biorefinery is a Mexico-based climate-tech company transforming agricultural waste into high-value natural extracts using solvent-free supercritical CO₂ technology.
Our work stands at the intersection of green chemistry, circular economy, and social innovation, redefining how bioactive ingredients are extracted, who benefits from that value, and how scalable clean technologies can drive inclusive growth.


Mission
To be a world-class producer of biomolecules through Mexican supercritical extraction technology, promoting its global adoption as a sustainable cornerstone of modern biorefinery applications.
Vision
To lead Latin America and the world in clean, sustainable biorefining, recognized for delivering the highest-quality natural extracts powered by original Mexican engineering.
We aim to become the trusted partner for organizations seeking eco-friendly, traceable, and toxin-free solutions grounded in the principles of Green Chemistry.

What Makes Us Different
TRL 7-certified clean extraction process
Our technology has been validated at Technology Readiness Level 7, demonstrating real-world performance in a pilot plant environment. It’s proven, scalable, and ready for industry deployment.
Powered by circular cooperative business models
We don’t just process biomass — we empower the people behind it. Our cooperative model allows local waste collectors and small producers to co-own the supply chain and share in the value creation.
Climate-positive technology that avoids toxic solvents
Our supercritical CO₂ extraction process uses no hexane, no heptane, and no synthetic chemicals. It’s clean for the planet, safe for workers, and better for your products — with the potential to become carbon-negative.
Focused on scientifically validated natural ingredients
We develop extracts backed by research and efficacy, starting with limonene and diosgenin. Our R&D ensures bioactivity is preserved and purity is maximized in every batch.
🇲🇽 Proudly Designed, Built, and Operated in Mexico
From engineering to execution, our modular biorefineries are created with Mexican talent, technology, and ingenuity — proving that world-class innovation can emerge from Latin America.
Raúl Tejeida-Olvera
Founder | Bioprocess Engineer | Innovation Leader
With a multidisciplinary background in fuel cell modeling, process systems engineering, and supercritical extraction, I bring over a decade of experience in sustainable technology development and implementation. My expertise includes:
🎓 Lecturing in Process Systems Engineering
⚙️ SOFC fuel cell simulation using Simulink
🧪 Supercritical CO₂ extraction and EPC of modular biorefineries
🧭 Technical support in Aspen Plus / Aspen Capital Cost Estimation


We are not just extracting — we are transforming
As a trained leader by the Royal Academy of Engineering and NIHR-Learn, I’ve developed tools to lead hybrid teams, promote psychological safety, and drive innovation. I actively work on building ventures that merge engineering, entrepreneurship, and sustainability — with a focus on circular economy and cooperative models.
I’m passionate about:
Turning local knowledge into global impact.
Leading change with empathy
Tackling the impostor phenomenon
Fostering inclusive innovation
2016
Founded
Amaranthus Biorefinery is born with the vision to turn agricultural waste into value through clean technology
2020
Manufacturing Milestone
Key equipment like spiral and U-tube heat exchangers are locally built, generating skilled jobs and validating core systems.
2023
Pilot Plant (TRL 7) Completed
Our first modular refinery is operational. We receive the LIF Global Award and begin extract manufacturing.
2024
Global Recognition & Growth
Awarded the Merck Food Industry Award. Entering new partnerships and preparing for commercial scale-up.
What’s Next for Us

We’re ready to scale impact and accelerate access to clean, solvent-free natural extracts across Latin America and beyond.
Our next milestones include:
Scale-up of extract production capacity
México
Moving from pilot to commercial batches of limonene and diosgenin.
Advanced formulation and certification
México
Optimizing extract stability and securing further GRAS/clinical validations.
Deployment of modular refineries
México
Installation of micro-refineries in rural cooperatives across Mexico.
Expansion of strategic partnerships
Global
With food, pharma, and wellness companies seeking traceable and clean-label ingredients.
What We Need Now
We are actively seeking:
Seed funding / Strategic investment
Global
To strengthen automation, instrumentation, and commercialization capacity.
Corporate partners & early adopters
Global
Brands and manufacturers committed to sustainable sourcing.
Scientific collaborators
Global
To co-develop bioactive applications and scale testing protocols.
Global visibility
Global
Support in storytelling, awards, media, and platform exposure.