理化及红外光谱分析的结果表明，鳕鱼肝油与鱼工、鳐鱼肝油的各指标及光谱基本一致；经去不皂化物及冷滤处理后的红外光谱分析比较，两者的指标同样基本一致；脂肪酸组成分析比较的结果，ＵＦＡ含量为：鳕鱼肝油＜鱼工、鳐鱼肝油，提示用鳕鱼肝油制备成鱼肝油酸钠后，因不饱和程度低，故作为硬化剂，它比用鱼工、鳐鱼肝油制备的鱼肝油酸钠更为有效，刺激性也小。用鳕鱼肝油制备鱼肝油酸钠比用鱼工、鳐鱼肝油制备鱼肝油酸钠得率较高，色泽较淡 Physicochemical and infrared spectroscopic analysis results showed that the indicators and spectrum of cod liver oil and fishery and cod liver oil were basically the same; after comparing the infrared spectrum analysis of unsaponifiables and cold filter, both indexes were basically the same; The results of compositional analysis and comparison show that the UFA content is: cod liver oil