29/08/2022
It belongs to fast-drying oils, as it easily polymerizes in the presence of atmospheric oxygen (“dries up”) with the formation of a strong transparent film. This ability is due to the high content of unsaturated fatty acids (in%): 44-61% alpha-linolenic (Omega-3), 15-30% linoleic (Omega-6), 13-29% oleic (Omega-9). The content of saturated acids is 9-11%.
Flax oil contains a significant amount of tocopherols (vitamin E), folic acid and estrogen-like phytohormones (lignans). Kinematic viscosity at 20 °C 15.5⋅10−6 m²/s, iodine value 175-204.
After ingestion, linseed oil lignans are metabolized by anaerobes into free bioactive mammalian lignans - enterolactone and enterodiol.