南极大燐虾(Euphausia Superba)氟含量分析研究

本文利用1984/85年我国首次南大洋考察带回的燐虾样品,采用氟试剂比色法,分析研究了南极大燐虾(Eunhausia Superba)的氟含量,结果表明:南极大燐虾含有很高的氟.虾壳含氟量最高,平均为4303mg/kgF;其次是头胸部,为1890mg/kaF;整体含氟量为1191mg/kgF;肌肉中最低,为370mg/kgF.雄性燐虾与雌性燐虾对氟的吸收和需求不同.冰冻贮存的大燐虾氟含量超出了美国食品药物管理局规定的二十多倍.新鲜脱壳虾肉氟含量只有60mg/kgF,是冰冻贮存燐虾肌肉氟含量的16%左右.富集氟是各种燐虾特有的生理功能,不仅南极燐虾有,其它海区的燐虾也有.

A STUDY OF FLUORIDE IN ANTARCTIC KRILL

In this report an analysis of fluoride content in Antarctic krill by using a colorimetric method with fluorine reagent is described. The krill samples were collected by the First Chinese South Ocean Research Expedition in 1984/85. The result shows that the Antarctic krill(Euphausia Superbd) contains considerably high fluoride. The highest fluoride value, 4303ppm in average, is found in its carapace, mean value, 1890 ppm,determined in cephalothorax,and average concentration 1191ppm is obtained in the whole raw E. Superba. But the lowest fluoride value, 370ppmin average,is foud in the krills muscle. The fluoride concentration in male krill is higher than that in female krill. It indicates that they have need to sorb different amount of fluorine. Fluoride content in the reposited frozen krill is 20 times higher than that designated by U. S. Food and Drug Administration. The fluoride concentration in peeled fresh muscle is 60 ppm only, about 16% of that in frozen krill muscle. The high fluoride content is a characteristic physiological function of various kinds of krills, including Antarctic krill and krill from other oceans.