Getaneh Aschalew, Guadie Atnafu, Tefera Molla
Department of Chemistry, University of Gondar, P. O. Box 196, Gondar, Ethiopia.
Heliyon. 2021 Apr 28;7(4):e06924. doi: 10.1016/j.heliyon.2021.e06924. eCollection 2021 Apr.
In this study, we investigated the concentrations of Cd, Cr, Cu, Fe, Ni, Pb and Zn; and their associated health risks through consumption of ginger. After the ginger samples digested with a mixture of HNO and HClO at 200 °C for 2:00 h, the amount of metals were investigated by flame atomic absorption spectrometry (FAAS). Efficiency of the analytical measurement was validated on spiking the sample with standard solutions of metals and the recovery for all studied metals were ranged from 91.60% to 99.94%, which is in the acceptable range of validation. The mean concentrations (mg/kg) were ranged from 4.63 to 5.43 for Cd, 2.17 to 4.44 for Cr, 62.52 to 65.14 for Cu, 77.71 to 81.12 for Fe, 6.49-7.58 for Ni and 16.74-19.31 for Zn. However, the concentration of Pb was not detected. The estimated daily intake (EDI) values of all metals from all samples are substantially lower than their corresponding maximum tolerable daily intake (MTDI). Target hazardous quotient (THQ) values of all metals are lower than 1 in all the sampling sites, revealed that there are no health risks for the users due to the intake of these metals. The health index (HI) values were slightly higher than unity, which implying that there is significant health effects to the population from consuming ginger at the study.
在本研究中，我们调查了生姜中镉（Cd）、铬（Cr）、铜（Cu）、铁（Fe）、镍（Ni）、铅（Pb）和锌（Zn）的含量；以及通过食用生姜所产生的相关健康风险。生姜样品在200℃下用硝酸（HNO）和高氯酸（HClO）的混合物消化2小时后，采用火焰原子吸收光谱法（FAAS）测定金属含量。通过向样品中加入金属标准溶液对分析测量的效率进行验证，所有研究金属的回收率在91.60%至99.94%之间，处于可接受的验证范围内。镉的平均浓度（mg/kg）为4.63至5.43，铬为2.17至4.44，铜为62.52至65.14，铁为77.71至81.12，镍为6.49 - 7.58，锌为16.74 - 19.31。然而，未检测到铅的浓度。所有样品中所有金属的估计每日摄入量（EDI）值均远低于其相应的最大可耐受每日摄入量（MTDI）。所有采样点所有金属的目标危害商（THQ）值均低于1，表明使用者因摄入这些金属不存在健康风险。健康指数（HI）值略高于1，这意味着在该研究中食用生姜对人群有显著的健康影响。
