| 摘要 |
PURPOSE:To effect thrombosis prevention, reduction of serum cholesterol value, prevention of heart disease, etc., by processing a single oil or fat to prepare a fatty acid composition containing oleic acid, linolic acid and alpha-linolenic acid in specific proportions. CONSTITUTION:A raw material of animal or vegetable origin is expressed, extracted and purified to obtain a single oil or fat (A) which is preferably liquid at room temperature and can be used as an eddible oil. The component A is mixed with or dissolved in a solvent (B), and the resultant mixture is cooled to 0 deg.C or lower, preferably -10 deg.C or lower to deposit a crystal fraction. The crystals are separated by means of a filter or liquid cyclone apparatus, and the filtrate is distilled to remove the component B, thereby obtaining an edible oil having a fatty acid composition comprising 15 - 54% oleic acid, 20 - 80% linolic acid and 17 - 35% alpha-linolenic acid. |
