Abstract:

The contents of selenium and mineral elements in Antarctic krill and domestic shrimp were determined by hydride generation  atomic fluorescence spectrometry (HG-AFS) and inductively coupled plasma atomic emission spectrometry (ICP-AES), respectively. The results showed that Antarctic krill selenium content ranged from 2.48 to 4.15 mg/kg (average value: 3.32±0.73), which was 2—5 times higher than that in domestic shrimps. Meanwhile, the Antarctic krill P, Mg, and Zn was 14.31±0.45 mg/g, 6.18±0.16 mg/g and 153.9±5.7 mg/kg, respectively, which was approximately 1.5 time higher than that in domestic shrimps. Additionally, the Antarctic krill arsenic content ranged from 0.68 to 1.22 mg/kg, which was significantly lower than the national arsenic content standard GB4810-94 for seafood (≦2.0 mg/kg, as inorganic arsenic). The results revealed that Antarctic krill is not only a good food source of selenium and some other mineral elements, but also can be used as the raw materials of aquaculture feedstuff selenium additives and seleniumenriched food additives for the residents in selenium deficiency areas.