4[5]Chang S S.Peterson R J.Chemieal reaction involved in deep fat frying of food[J].JAOCS,1987,(55):718~727.
5[7]Martina Hein,Hariette Henning,Heinz-Dieter lsengard.Determination of total polar parts with new methods for thequality survey of frying fats and oils[J].Talanta,1998,(47):447~454.