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This short note compares the chemical profile of pecan nut oil samples obtained from pressurized n -butane and cold pressing with two commercial oils. The conventional cold pressing technique yielded 58.9 wt%, while pressurized n -butane yielded from 53 to 65 wt%, being the highest yield at 55 °C, and pressure of 40 bar. The n -butane behaves nearly like a piston fluid within the experimental conditions used. The results showed that the extraction variables had a slight influence on the fatty acid composition of the samples. Extraction with n -butane thus showed to be a promising alternative technique to conventional extraction methods, as very mild operating conditions and eco-friendly solvent can be used to provide good results without any residues in the final product.

Fatty acid profile of pecan nut oils obtained from pressurized n-butane and cold pressing compared with commercial oils