茶是世界各地许多人喜欢的流行饮料。然而,值得注意的是,茶叶中的杂质和污染物在食用时可能会威胁人类健康。这项研究的主要目的是评估16种微量元素的浓度(As,Fe,Al,Co,B,Li,Cd,Ba,Pb,Cr,Zn,Hg,Ni,Mn,Sb,和Sn)存在于通过使用ICP-OES(电感耦合等离子体发射光谱仪)设备冲泡的不同类型的茶中,并评估了与其使用相关的人类健康风险。在这项研究中,锰(Mn)在黑色(917.64µg/kg)和绿茶(912.89µg/kg)中的平均浓度最高,分别。我们的研究表明,Stachyslavandulifolia酿造的茶中元素硼(B)的最高平均浓度为(44.36µg/kg)。在不同的包装中,茶叶袋样品的Mn浓度最高(1025.65µg/kg)和铝(Al)浓度最高(396.63µg/kg)。然而,未包装的锰含量最低(188.13µg/kg)和铝含量最低(100.47µg/kg)。铅(Pb),汞(Hg),所有样品中的镉(Cd)浓度均低于伊朗标准和世界卫生组织的最高限值。总的来说,伊朗样品中的茶叶金属含量高于进口样品。此外,增加酿造时间(10分钟)可以有效地溶解和提取金属,如B,Hg,钴(Co),铁(Fe),锂(Li)。Further,用主成分分析评价了茶叶样品中金属含量与类型之间的相关性。基于蒙特卡罗模拟进行的非致癌风险评估,危险指数(HI),由于在5分钟的泡茶中通过茶摄入重金属,是7.39E-03和2.09E-03,在10分钟的泡茶中,儿童和成人为3.20E-02和9.07E-03,分别。因此,饮用茶叶没有显著的非致癌风险.
Tea is a popular drink enjoyed by many people around the world. However, it is important to note that impurities and contaminants in tea can potentially threaten human health when consumed. The main objective of this research is to assess the concentration of 16 trace elements (As, Fe, Al, Co, B, Li, Cd, Ba, Pb, Cr, Zn, Hg, Ni, Mn, Sb, and Sn) present in different types brewed of tea by using the ICP-OES (the inductively coupled plasma optical emission spectrometer) device, and the human health risks related to its use were evaluated. In this
study, manganese (Mn) indicated the highest mean concentration in black (917.64 µg/kg) and green tea (912.89 µg/kg), respectively. Our
study showed that the highest mean concentration of element boron (B) was (44.36 µg/kg) in Stachys lavandulifolia brewed tea. Among different packaging, tea bag samples had the highest concentration of Mn (1025.65 µg/kg) and aluminum (Al) (396.63 µg/kg). However, those unpacked posed the lowest content of Mn (188.13 µg/kg) and Al (100.47 µg/kg). The lead (Pb), mercury (Hg), and cadmium (Cd) concentrations in all samples were lower than the maximum limit of the Iranian standard and the WHO. In general, the amount of tea metal in Iranian samples was higher than in imported samples. Also, increasing the brewing time (10 min) can be effective in the solubility and extraction of metals such as B, Hg, cobalt (Co), iron (Fe), and lithium (Li). Further, the correlation between the amount of metals and type in tea samples was evaluated with principal component analysis. Based on the conducted non-carcinogenic risk assessment by the Monte Carlo simulation, the hazard index (HI), due to ingestion of heavy metals via tea in the 5-min brewing of tea, was 7.39E - 03 and 2.09E - 03, and in the 10-min brewing of tea, it was 3.20E - 02 and 9.07E - 03 for children and adults, respectively. Therefore, there was no significant non-carcinogenic risk from tea consumption.