Co2 supercritical extraction method is adopted for peony seed oil to obtain the best extraction conditions. Through such method (SFE-CO2), unsaturated fatty acids are obtained, including more than 40% of linolenic acid. So the peony seed oil product is natural, environmentally-friendly and safe. a-linolenic acid is a kind of very important fatty acid and its lack will result in a series of serious results to the human body. Through the long-term research, the scientists have discover that 60% of the human brain is composed of fats, in which at least 30% is n-3 fatty acid (with the main component of a- linolenic acid. The metabolites KHA and EPA of n-3 fatty acid are related to many phenomena of human body and n-3 fatty acid is very important to the health of human body. So its lack will result in many diseases and decline of body functions.
a-linolenic acid's physiological effect on preventing cardiovascular and cerebrovascular diseases and cancers, lowering blood fat, blood pressure, resisting allergy and inflammation, inhibiting complications, deferring senility and protecting eyesight and enhancing intelligence are well known to international medical and nutrition circles. American expert Jean Carper believes a-linolenic can shrink tumors; Japanese experts find that a-linolenic can improve the intelligence level of youngsters.