Technology

Clean Extraction for a Circular Future

At Amaranthus Biorefinery, we harness supercritical CO₂ extraction — a solvent-free, energy-efficient process that transforms local fruit waste into high-purity, bioactive natural extracts. Our technology is TRL 7-certified, validated in real operating conditions, and built for global scalability.

The Problem

The Food Waste Crisis

  • 🚛 3.6 million tons of citrus fruit waste discarded annually in the UK alone.
  • 🧺 Over 32,000 tons of produce wasted every year at Mexico City’s Central de Abastos — 45% of it fruits and vegetables.
  • 🔬 These discarded materials contain valuable bioactive compounds — often left untapped or extracted using toxic solvents like hexane and heptane.

Traditional extraction methods create:

Health risks for operators and consumers

Environmental pollution and solvent waste

Low bioactivity retention and high energy usage

Our Solution

Amaranthus Biorefinery offers a clean alternative:
We transform local fruit waste into high-value natural extracts using supercritical CO₂ extraction technology — without toxic chemicals.

🔧 Key Advantages of Our Process

🌍 Carbon-negative potential – reducing environmental footprint

100% solvent-free – no contamination, no hazardous residues

🧪 GRAS-certified – safe for human health and wellness

💧 Closed-loop system – minimal water use, zero wastewater

♻️ Preserves bioactive compounds – maximizing efficacy

Up to 40% more energy-efficient

Our Value Proposition

We offer high-performance natural extracts with global demand:

🍊 Limonene

  • Sourced from: Orange, Grapefruit, Lemon & Bergamot peels
  • Market size: US$312.1M
  • Applications: nutraceuticals, natural flavorings, eco-cleaners, and pharma

🌱 Diosgenin

Advantage: a sustainable alternative to synthetic synthesis

Sourced from: Mexican Barbasco (Wild Yam)

Market size: US$7.9B (contraceptive industry)

Role: natural precursor for hormone-based pharmaceuticals

What is Supercritical CO₂ Extraction?

Supercritical CO₂ is a state where carbon dioxide behaves like both a gas and a liquid. In this form, it can penetrate biomass and extract natural compounds without using toxic solvents like hexane or heptane.

✅ 100% solvent-free
✅ GRAS-certified (Generally Recognized As Safe)
✅ Preserves temperature-sensitive bioactives
✅ Zero toxic residues
✅ Closed-loop recapture system
✅ Minimal water use, low energy footprint

Why It Matters

Traditional extraction often involves:

  • ❌ Toxic solvents
  • ❌ Fossil fuel derivatives
  • ❌ High water and energy use

Amaranthus offers a climate-positive alternative that is:

💡 Better for next-generation wellness and pharma solutions

🌿 Safer for humans

🌍 Gentler on the planet

How It Works

1

Feedstock: We source citrus waste and native botanicals (e.g., orange peel, barbasco root)

2

Extraction: CO₂ is pressurized into a supercritical state and passed through the biomass

3

Separation: Bioactive compounds (e.g., limonene, diosgenin) are separated and purified

4

Recapture: CO₂ is recovered and reused in a closed-loop system

5

The result? High-yield, clean extracts with low environmental impact.

Engineered in Mexico, Built to Scale

Our refineries are:

Adaptable – Compatible with a variety of plant-based inputs

Modular – Easily deployable in rural regions and industrial zones

Compact – Operational in <3 weeks

Locally manufactured – Built by Mexican engineers and technicians

Customized just for You

Scientifically-Validated Extracts

We specialize in:

  • Limonene – from citrus peels (US$312M market)
  • Diosgenin – from barbasco root (US$7.9B contraceptives market)

Both are:

Suited for nutraceutical, pharma, cosmetic, and food applications

GRAS-certified

Free from contaminants


Proven. Recognized. Ready.

✅ TRL 7 pilot plant installed

🏆 LIF Global Award recipient

🏅 Merck Food Industry Award

📈 Industry partnerships in food, wellness, and pharma sectors

Ready to build the future of clean extraction?

Join us in transforming waste into wellness — with science, sustainability, and local empowerment.