Abstract: For the full use of freshwater fish resource and evaluation of its added value,oil was extracted from Ctenopharyngodon idellus Viscera in vacuum environment.Then the oil was refined by degumming,depickling,bleaching and deodorization.With POV and TBARS as the analysis index,the antioxidations of VC,VE,BHT and PG to the oil were investigated.The optimal refinement conditions for the oil obtained were as follows:degelatinization by adding 50% H3PO4 accounting for 1% of the oil;disacidify by adding 3.65% caustic soda accounting for 1.5% of the oil;decolorisation by adding activate carbon and activate clay with the proportion of 1:20,and amount added accounting for 2.1% of the oil;and deodorization for 60 min at 0.085 kPa degree of vacuum.The capability order of antioxidation is:0.01%PG > 0.02% BHT > 0.1% VE > 0.2% VE > 0.2% VC.

Key words: Ctenopharyngodon idellus Viscera oil, refinement, antioxidant