Resumo

BETANCUR, Heber N. Chui et al. Essential chemical elements in rainbow trouts, Oncorhynchus Mykiss, in productive sites in two provinces of northwestern of lake Titicaca, Peru. Rev. Bol. Quim [online]. 2021, vol.38, n.2, pp.56-61. ISSN 0250-5460.  https://doi.org/10.34098/2078-3949.38.2.1.

The concentration of essential chemical elements of the axial muscle of rainbow trout (Oncorhynchus mykiss) collected in two provinces: Puno and Huancané, located northeast of Lake Titicaca, was evaluated. For the chemical characterization, the Atomic Absorption Spectrometry (ICP-OES) method was used, under protocol 7003 EPA 200.7. The essential chemical elements found in the axial muscle of the trout collected in the province of Puno are: Zn (15.00 ± 0.95 mg / kg); Se (1.26 ± 0.37 mg / kg); Al (2.03 ± 0.23 mg / kg); Ca (513.33 ± 112.40 mg / kg); Na (1733.33 ± 152.75 mg / kg); Mg (496.00 ± 35.12 mg / kg); K (11333.33 ± 1154.70 mg / kg); Mn (0.07 ± 0.02 mg / kg) and P (5066.67 ± 251.66 mg / kg), while the concentration of essential elements in the axial muscle samples of the trout collected in the province of Huancané they are: Zn (14.30 ± 3.48 mg / kg); Se (1.27 ± 0.34 mg / kg); Al (0.76 ± 0.15 mg / kg); Ca (663.33 ± 170.10 mg / kg); Na (1733.33 ± 513.16 mg / kg); Mg (586.67 ± 15.28 mg / kg); K (11000.00 ± 0.00 mg / kg); Mn (0.16 ± 0.06 mg / kg) and P (5300.00 ± 264.58mg / kg) these do not exceed the maximum permissible limits, so they constitute an important source of protein, in addition to the two fatty acids Essential omega-3s known as DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) and vitamins, so that rainbow trout (Oncorhynchus mykiss) from the evaluated areas are suitable for human consumption, because they do not exceed the maximum limits permissible levels of the chemical elements analyzed.

Palavras-chave : Atomic Absorption Spectrometry; Essential Chemicals; Axial Muscle; Trout.

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