Yang J G, Li G L, Jin Q H, Chen D H, He S W
Institute of Cardiovascular Diseases, Tongji Medical University, Wuhan.
J Tongji Med Univ. 1994;14(2):77-80.
In this study the molecular formula and structure of lipid constituents of silver carp and bighead carp in middle reaches of Yangtze River were determined by gas chromatography-mass spectrometry. The position of double bounds was identified by the method of double bounds chemical localization. These carps are proved to contain eicosapantaenoic acid (EPA) and decosahexenoic acid (DHA). The contents of EPA and DHA, which were determined by gas chromatography, in silver carp and bighead carp were approximately the same as in tuna and salmon. The contents of EPA and DHA in 100 g wet sample were 0.187 g, 0.229 g and 0.246 g, 0.325 g respectively, but the cholesterol contents in silver carp and bighead carp were much lower than in tuna and salmon.
本研究采用气相色谱 - 质谱联用仪测定长江中游鲢鱼和鳙鱼脂质成分的分子式和结构。通过双键化学定位法确定双键位置。结果表明，这些鲤鱼含有二十碳五烯酸（EPA）和二十二碳六烯酸（DHA）。采用气相色谱法测定，鲢鱼和鳙鱼中EPA和DHA的含量与金枪鱼和三文鱼中的含量大致相同。每100克湿样品中，EPA和DHA的含量分别为0.187克、0.229克和0.246克、0.325克，但鲢鱼和鳙鱼中的胆固醇含量远低于金枪鱼和三文鱼。
