Mixing olive oil with more Picual (which has more monounsaturated fat) makes it less likely to form gummy polymers when heated, compared to mixing with more Arbequina.
Scientific Claim
Blending 70% Picual with 30% Arbequina (Sensation) reduces triacylglycerol polymer formation during heating at 200 °C compared to 70% Arbequina with 30% Picual (Armonia), suggesting that higher MUFA content improves thermal stability.
Original Statement
“The samples analyzed, including the olive blends (Armonia and Sensation), were commercially purchased and the Arbequaina and Armonia may be from a different production batch... The addition of refined coconut oil (RCO) to olive oil allowed the frying sessions... A similar effect can be observed for Sensation olive (a blend of Arbequina and Picual). Mixing them in the right proportion led to a decrease in the share of PUFA (Arbequina) and an increase in the share of MUFA (Picual). After heating at 200 °C, the level of TAG polymers was low (2.28%).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The study measured TAG polymers in defined blends under identical heating conditions, allowing definitive statements about the effect of fatty acid composition on polymerization.
Evidence from Studies
Supporting (0)
Contradicting (1)
The study looked at different olive oils when heated, and found Picual oil itself is more stable, but it didn’t clearly show that mixing 70% Picual with 30% Arbequina works better than the other way around — so we can’t say the claim is true.