A safe SAF substitute for palm oil
S. Himmelstein | September 26, 2025
Two-stage bioconversion of carbon dioxide into palm oil-free fat. Source: Fraunhofer IGB
Palm oil is a critical component in the formulation of sustainable aviation fuel (SAF), but the increased exploitation of this material has resulted in extensive deforestation and significant carbon dioxide (CO2) emissions, underscoring the need for environmentally sound alternatives. A sustainable palm oil substitute is now available as a result of research conducted by Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Mibelle Group and LanzaTech Global, Inc.
The dual fermentation technology transforms waste CO2 gases into alcohol and further into a palm oil-like fat using non-genetically modified oil yeasts in a secondary fermentation process. Following successful laboratory trials at Fraunhofer IGB and promising application tests at Mibelle laboratories, efforts are now focused on scaling up production of this hydroprocessed esters and fatty acids process engineered by LanzaTech.
Alcohol from the LanzaTech process is already a feedstock for SAF production. Via the Alcohol to Jet Process, LanzaTech’s technology enables the production of advanced SAF, and when the ethanol is made from CO₂ and green hydrogen, e-fuels are manufactured as replacements for conventional petroleum-based fuels.
The technology not only reduces reliance on palm oil but also opens the door to more sustainable supply chains.
I heard pros and cons both ways...
Dairy farmers used Palm Oil as a protein supplement. The butter made from the milk from the cows that were fed Palm Oil had detrimental effects when the butter was used in bakeries.
"Palm oil increases the proportion of saturated fats in the milk, making it less malleable at room temperature. This caused the 2021 Canadian "Buttergate" controversy, highlighting issues of consumer trust in the food system, potential health effects of increased saturated fat intake, and the ongoing environmental concerns of palm oil production, including rainforest deforestation.
The "Buttergate" Controversy
Health and Environmental Concerns
The Aftermath and Lessons Learned
Buttergate was a 2021 scandal in Canada where consumers complained that butter had become too hard to spread at room temperature. The cause was traced to dairy farmers feeding their cows palm oil-based supplements, which increased the butter's saturated fat content, leading to increased firmness. What Happened?
Why Did It Happen?
The Solution