Silva E, Viana Z C V, Onofre C R E, Korn M G A, Santos V L C S
Unidade Acadêmica de Ciências Biológicas, Universidade Federal de Campina Grande, Patos, PB, Brazil.
Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil.
Braz J Biol. 2016 Feb;76(1):194-204. doi: 10.1590/1519-6984.17114. Epub 2016 Jan 22.
In this study, concentrations of trace elements in tissues of shrimp species (Litopenaeus vannamei) from farming and zone natural coastal located in the northeastern Brazil were investigated. The elements determination was performed by optical emission spectrometry with inductively coupled plasma (ICP OES). The following ranges of concentrations in the tissues were obtained in µg g-1 dry weight: Al: 13.4-886.5, Cd: 0.93-1.80; Cu: 24.8-152; Fe: 3.2-410.9; Mn: 0.36-24.4; Se: 0.094-9.81 and Zn: 20.3-109.4. The shrimp muscle can be a good iron source (about 88.9 mg-1g dry weight). The distribution of Se concentration in tissues showed much variation between locations, and the concentration levels found in shrimp muscles of wild samples were high, where its levels in 67% of muscle and 50% of others tissues samples exceeded the ANVISA limit, indicating evidence of selenium bioaccumulation. Significant correlation was observed between the following pairs of elements: Fe-Zn (r= -0.70), Mn-Cu (r= -0.74), Se-Cu (r= -0.68), Se-Mn (r= 0.82) in the muscles; Fe-Al (r= 0.99), Mn-Al (r= 0.62), Mn-Fe (r= 0.62), Se-Al (r = 0.88), Se-Fe (r= 0.87), Se-Mn (r= 0.58) in the exoskeleton and Cu-Zn (r = 0.68), Al-Cu (r= 0.88), Fe-Cu (r= 0.95) and Fe-Al (r= 0.97) in the viscera.
在本研究中，对来自巴西东北部养殖区和自然沿海区域的凡纳滨对虾组织中的微量元素浓度进行了调查。采用电感耦合等离子体发射光谱法（ICP OES）测定元素。组织中各元素浓度范围以干重计为微克/克：铝：13.4 - 886.5，镉：0.93 - 1.80；铜：24.8 - 152；铁：3.2 - 410.9；锰：0.36 - 24.4；硒：0.094 - 9.81；锌：20.3 - 109.4。虾肌肉可能是良好的铁源（约88.9毫克/克干重）。硒在组织中的浓度分布在不同地点差异很大，野生样本虾肌肉中的浓度水平较高，其中67%的肌肉样本和50%的其他组织样本中的硒含量超过了巴西国家卫生监督局（ANVISA）的限值，表明存在硒生物累积的证据。在肌肉中，以下元素对之间存在显著相关性：铁 - 锌（r = -0.70）、锰 - 铜（r = -0.74）、硒 - 铜（r = -0.68）、硒 - 锰（r = 0.82）；在外骨骼中，铁 - 铝（r = 0.99）、锰 - 铝（r = 0.62）、锰 - 铁（r = 0.62）、硒 - 铝（r = 0.88）、硒 - 铁（r = 0.87）、硒 - 锰（r = 0.58）；在内脏中，铜 - 锌（r = 0.68）、铝 - 铜（r = 0.88）、铁 - 铜（r = 0.95）和铁 - 铝（r = 0.97）。
