At present,perilla oil contains the most α linolenic acid(α-LNA) among all the edible vegetable oil,which reaches 70%,α-linolenic acid,which belongs to ω-3 polyunsatureated fatty acids,is one of the essential fatty acids,and it can't synthesis in the human body,but taken from the outside,Perilla oil has a long history as food and medicine.Sheng Nong's herbal classic listed it as the top grade.it can protect liver,antithrombus,reduce blood fat,reduce blood pressure,protect eyesight,imporvethe intelligence and has inhibitory effect on allergic reaction and inflammation.The world health organization and the United Nations food and agriculture organization suggest special supplement of α-linolenic acid,in consideration of the importance of the α-linolenic acid,and the inadeuqate intake for human.

 Qiming biological food Co,.Ltd of Ningxia adopts supercritical carbon dioxide extraction technology to extract perilla oil,which contains α-linolenic acid as high as 65%,can be widely used in medicine,health care,cosmetics,massage base oil,etc.