传统上用于治疗普通感冒和流感的巨桉叶提取物中的微量元素。

IF 2.4 Q1 Medicine
Journal of Health and Pollution Pub Date : 2019-12-06 eCollection Date: 2019-12-01 DOI:10.5696/2156-9614-9.24.191214
Artwell Kanda, France Ncube, Takudzwa K Goronga
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引用次数: 0

摘要

背景:桉树已被用于津巴布韦矿山尾矿坝的修复。然而,用于治疗轻度急性呼吸道感染(如普通感冒和流感)的传统药物(TMR)包括使用桉树叶子。目的:本研究的目的是确定金矿尾矿和大桉树叶子中选定的潜在有毒微量元素(pte)的总浓度,并通过在水中煮沸10分钟来确定叶子中pte的可提取部分,这是用于制造治疗普通感冒和流感的tmr的过程。方法:于2019年4 - 6月在某金矿尾矿库随机采集矿砂和大叶草。用标准分析方法消化后供实验室分析。按照当地社区的做法,将叶子在水中煮10分钟,以准备TMR。用光谱法测定了pte的浓度。方差分析表明,幼叶和成熟叶pte之间存在显著差异。结果:尾矿呈酸性(pH为4.52±0.62),有机质含量极低(0.02%),pte含量呈逐渐升高的趋势,镉(Cd) <镍(Ni) <铅(Pb) <铬(Cr) <铜(Cu) <锌(Zn) (n = 27)。大叶松成熟叶中Cr、Pb和Zn (p)的含量高于幼叶。结论:大戟叶及叶提取物中pte含量极低。然而,由于存在Cd和Pb等累积毒素,不应从生长在含金属环境(如矿山尾矿坝)上的药用植物中制备tmr。需要进一步的研究来调查不同煮沸时间的影响,并应在所研究的pte中包括砷。利益竞争:作者声明本研究无利益竞争。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Trace Elements in Leaf Extracts of Eucalyptus grandis Traditionally Used to Treat Common Cold and Flu.

Background: Eucalyptus species have been used for the remediation of mine tailings dams in Zimbabwe. However, a traditional medicinal remedy (TMR) for the treatment of mild acute respiratory infections, such as common cold and flu includes the use of Eucalyptus leaves.

Objectives: The aim of the present study was to determine total concentrations of selected potentially toxic trace elements (PTEs) in gold mine tailings and leaves of Eucalyptus grandis and to identify extractable fractions of PTEs in leaves via boiling for 10 minutes in water, which is the process used to create TMRs to treat common cold and flu.

Methods: Mine tailings and leaves of E. grandis were randomly collected at a gold mine tailings dam between April and June 2019. They were digested for laboratory analysis using standard analytical methods. Leaves were boiled in water for 10 minutes to prepare the TMR as practiced by the local community. The concentrations of PTEs were determined spectrometrically. Significant differences between PTEs in young and mature leaves were determined by analysis of variance.

Results: Mine tailings were acidic (pH 4.52±0.62) with very low content of organic matter (0.02%) and contained PTEs in increasing concentrations of cadmium (Cd) < nickel (Ni) < lead (Pb) < chromium (Cr) < copper (Cu) < zinc (Zn) (n = 27). Mature leaves of E. grandis had higher concentrations than young leaves for Cr, Pb and Zn (p <0.05) which were lower than permissible limits in medicinal plants. Overall, boiling leaves in water for 10 minutes resulted in low extraction of PTEs (< 20%).

Participant consent: Obtained.

Conclusions: Concentrations of PTEs in leaves and leaf extracts of E. grandis were very low. However, TMRs should not be prepared from medicinal plants growing on metalliferous environments, such as mine tailings dams, due to the presence of cumulative toxins such as Cd and Pb. Further studies are needed to investigate the effect of various boiling times and should include arsenic in the studied PTEs.

Competing interests: The authors declare no competing interests for this study.

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来源期刊
Journal of Health and Pollution
Journal of Health and Pollution Medicine-Public Health, Environmental and Occupational Health
自引率
0.00%
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0
审稿时长
18 weeks
期刊介绍: The Journal of Health and Pollution (JH&P) was initiated with funding from the European Union and World Bank and continues to be a Platinum Open Access Journal. There are no publication or viewing charges. That is, there are no charges to readers or authors. Upon peer-review and acceptance, all articles are made available online. The high-ranking editorial board is comprised of active members who participate in JH&P submissions and editorial policies. The Journal of Health and Pollution welcomes manuscripts based on original research as well as findings from re-interpretation and examination of existing data. JH&P focuses on point source pollution, related health impacts, environmental control and remediation technology. JH&P also has an interest in ambient and indoor pollution. Pollutants of particular interest include heavy metals, pesticides, radionuclides, dioxins, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), air particulates (PM10 and PM2.5), and other severe and persistent toxins. JH&P emphasizes work relating directly to low and middle-income countries, however relevant work relating to high-income countries will be considered on a case-by-case basis.
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