Macaúba Revolution: Brazil’s Answer to Sustainable Aviation Fuel (SAF)

For decades, farmers in the Brazilian Cerrado viewed the Macaúba palm (Acrocomia aculeata) as nothing more than a nuisance. Its long, razor-sharp thorns made working near it a nightmare, and it seemed to sprout everywhere without being planted. Most landowners simply cut it down to make room for cattle or soy.

But today, this "thorny pest" is being rebranded as "green gold." Some of the world’s most powerful investors are betting billions that this native palm will become the ultimate feedstock for the next generation of sustainable fuels — potentially outperforming soy, palm oil, and even fossil fuels in the race to decarbonize the planet.

THE OIL POWERHOUSE

The numbers behind the Macaúba are staggering. Researchers have discovered that the palm can produce over 4,000 liters of oil per hectare per year. To put that in perspective, soy — currently the primary source for Brazilian biodiesel — produces an average of just 400 liters per hectare. In the same space, the Macaúba yields ten times more oil.

For many specialists the Macaúba is almost like the petroleum of the future. Its oil is uniquely suited for the production of HVO (Hydrotreated Vegetable Oil) and SAF (Sustainable Aviation Fuel). Unlike conventional biodiesel, which often requires engine modifications and limited blending, HVO and SAF are chemically identical to fossil fuels. This means planes and trucks can run on them pure, without a single bolt being changed in their engines.

BEYOND FUEL: A CIRCULAR MIRACLE

The true advantage of the Macaúba lies in its "zero-waste" profile. While soy is primarily grown for its beans, almost every part of the Macaúba fruit has a commercial use:

• The Husk: Burned to generate renewable energy.
• The Pulp: Extracted for HVO and SAF production.
• The Residue: High-protein "cake" used as cattle feed.
• The Endocarp: A hard shell used to produce high-density charcoal for the steel industry.
• The Kernel: Produces a high-value oil for cosmetics and food, similar to coconut oil.

Even the tree itself offers benefits. Its tall, sparse canopy allows sunlight to reach the ground, enabling a system known as "crop-livestock integration." Farmers can plant Macaúba palms directly in their pastures, allowing cattle to graze beneath the trees while harvesting oil from above.

HEALING THE LAND

Perhaps the most compelling environmental argument for the Macaúba is its ability to thrive on degraded land. Brazil has an estimated 50 to 70 million hectares of exhausted pastureland, areas that are currently unproductive and generate near-zero income.

Because the Macaúba is a hardy native species adapted to poor soils, it can be used to reforest these areas, recovering the soil’s organic matter and reducing erosion while providing a sustainable income stream for rural communities.

THE BILLION-DOLLAR BET

The scale of the investment suggests this is more than just a passing trend. Acelen Renováveis, a subsidiary of the UAE’s sovereign wealth fund Mubadala Capital, has announced a 3 billion US dollars plan to build a massive Macaúba supply chain in Brazil.

The company has already established a nursery in Minas Gerais capable of producing 10 million seedlings per year. Their goal is to produce 1 billion liters of HVO and SAF annually by 2038, targeting the lucrative European and American markets where traceability and carbon intensity are strictly regulated.

LESSONS FROM THE PAST

The Macaúba’s rise inevitably draws comparisons to previous "miracle crops" like castor beans (mamona), which were promoted in the early 2000s but failed to reach commercial scale due to low productivity and high costs.

However, proponents argue the Macaúba is different. Unlike the castor bean programs, which were government-led, the Macaúba push is driven by global institutional capital and a real, skyrocketing international demand for aviation decarbonization.

Challenges remain, most notably the difficulty of harvesting fruit from tall, thorny palms and the five-to-six-year wait for the first harvest. But if the bet pays off, Brazil could soon be exporting high-tech fuel made from a plant that farmers once fought to eliminate.

In the Cerrado, the "praga" has become the promise.

Acelen’s $3B Biofuel Push Could Make Brazil a Global Hub for Sustainable Aviation Fuel

Acelen Renováveis, a Brazilian company, is investing $3 billion in an initial phase to produce Sustainable Aviation Fuel (SAF) and renewable diesel from the native macaúba palm. The ambitious project aims to position Brazil as a global leader in sustainable biofuels, with plans for an annual production of 1 million tons of fuel and the cultivation of 180,000 hectares of macaúba on degraded lands.

The project leverages Brazil's extensive degraded land for macaúba cultivation, aiming to establish the country as a leader in sustainable energy. An independent study by Fundação Getúlio Vargas projects an economic impact of $40 billion and the creation of up to 85,000 direct and indirect jobs.

Pedro Estrela, Vice President of New Business and Digital at Acelen Renováveis, emphasized the macaúba's potential. "It's another example of the capacity of Brazilian agribusiness to develop sustainable, scalable, abundant, and competitive energy solutions," Estrela stated. All cultivation will take place on degraded land, converting low-productivity areas into economic units.

Traceability is a crucial element of Acelen's strategy. A recent partnership with a Spanish firm will implement a digital traceability tool for macaúba, ensuring sustainable development from planting to biofuel production. This system will monitor practices and emissions, providing auditable proof of sustainability, essential for regulated markets such as Europe and the United States.

The European market, which mandated 2% SAF usage for airlines in 2023, is a strategic focus. The U.S. market is also developing incentives for renewable diesel and SAF. Brazil anticipates implementing its own SAF mandate by 2027, aligned with the CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) framework.

Macaúba was selected for its high oil yield, which is 10 times more per hectare than soy, and its resilience to temperature variations and water scarcity. It also contributes to the recovery of degraded land. The primary challenge involves domesticating this native plant for large-scale cultivation.

Acelen has established the Aelen Agripark, an advanced innovation and technology center in Montes Claros, Brazil, dedicated to macaúba domestication. The Agripark features laboratories for genetic mapping, seedling production (with 3 million seedlings already produced), and a pilot extraction plant capable of processing 2 tons of fruit per hour. The annual production target is 10.5 million macaúba seedlings.

The project incorporates a robust social responsibility component, engaging local communities and family farmers. Approximately 20% of the cultivated area, or 36,000 hectares, will involve partnerships with small producers, offering technological support, access to public policies, and guaranteed purchase contracts. This initiative aims to boost income and enhance living conditions in rural areas.

Founded in 2023 with investment from Mubadala Capital, Acelen Renováveis plans to construct the first Brazilian biorefinery starting in 2029. The long-term vision includes scaling to five modules, with a total investment of $15 billion, to further solidify Brazil's leadership in advanced biofuels. The project aims to decarbonize the aviation and road transport sectors by approximately 80% and sequester atmospheric carbon through macaúba cultivation.