Hodel Katharine V S, Machado Bruna A S, Santos Nathália R, Costa Renata G, Menezes-Filho Jose A, Umsza-Guez Marcelo A
University Center SENAI CIMATEC, National Service of Industrial Learning, Laboratory of Pharmaceutical's Formulations, Health Institute of Technologies (ITS CIMATEC), Salvador 40110-100, Brazil.
Federal University of Bahia, Laboratory of Toxicology, Pharmacy Faculty, Salvador 40170-290, Brazil.
ScientificWorldJournal. 2020 Jan 22;2020:4395496. doi: 10.1155/2020/4395496. eCollection 2020.
Brazilian raw propolis samples (brown, green, red, and yellow) were investigated to evaluate the content of three elements of nutritional value (Cu, K, and Se) and three toxic metals (As, Cd, and Pb). The propolis samples ( = 19) were obtained from different regions of Brazil and analysed by atomic absorption spectrometry after microwave-assisted digestion. A descriptive analysis of the variables was carried out, and nonparametric tests (Kruskal-Wallis or Mann-Whitney) were performed to verify the differences in metal contents. The elemental concentrations of the Brazilian propolis were in the following ranges: As < 0.048-8.47 g·g, Pb < 0.006-0.72 g·g, Cu 0.57-11.60 g·g, Se < 0.041-0.54 g·g, and K 0.23-7.94 mg·g; Cd was below LOD (0.008 g·g) in all samples, except one. Seven samples exceeded the limits defined for As or Pb by the Brazilian regulation.
对巴西的生蜂胶样本（棕色、绿色、红色和黄色）进行了研究，以评估三种具有营养价值的元素（铜、钾和硒）以及三种有毒金属（砷、镉和铅）的含量。这些蜂胶样本（n = 19）取自巴西不同地区，经微波辅助消解后采用原子吸收光谱法进行分析。对变量进行了描述性分析，并进行了非参数检验（克鲁斯卡尔 - 沃利斯检验或曼 - 惠特尼检验）以验证金属含量的差异。巴西蜂胶的元素浓度范围如下：砷 < 0.048 - 8.47 μg·g，铅 < 0.006 - 0.72 μg·g，铜 0.57 - 11.60 μg·g，硒 < 0.041 - 0.54 μg·g，钾 0.23 - 7.94 mg·g；除一个样本外，所有样本中的镉均低于检测限（0.008 μg·g）。七个样本超过了巴西法规规定的砷或铅限量。
