< Topic >Relative the chlorine compound of the low molecular weight in the oil and fat, for example, offer the refinement method of the edible oil and fat which can decrease 3 monokuroro - propane diol and that ester compound.SolutionsWhile pressurizing the oil and fat under water existing, it is refinement method of the edible oil and fat which features that it includes the process which it heats, the abundance of thing and the water where the water when heating is sub- critical state being 25 - 400 mass sections vis-a-vis the oil and fat 100 mass section, the aforementioned process which is heated it is desirable to do in the chest or in the circulation type reaction container.< Selective figure >It is not【課題】油脂中の比較的低分子量の塩素化合物、例えば、3-モノクロロ-プロパンジオールとそのエステル化合物を低減することができる食用油脂の精製方法を提供すること。【解決手段】油脂を水存在下で加圧しながら加熱する工程を含むことを特徴とする食用油脂の精製方法であり、加熱時の水が亜臨界状態であること、水の存在量が油脂100質量部に対し25~400質量部であること、加熱する前記工程を密閉容器中又は流通式反応容器中で行うことが好ましい。【選択図】なし
