A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China
文献类型：期刊论文
| 作者 | Li, Lanhai1; Fu, Qing-Long2,4; Achal, Varenyam3; Liu, Yonglin4 |
| 刊名 | ENVIRONMENTAL MONITORING AND ASSESSMENT
 |
| 出版日期 | 2015-05-01 |
| 卷号 | 187期号:5页码:12 |
| 关键词 | Green tea Tea infusion Heavy metals Aluminum Health risk assessment Food safety |
| ISSN号 | 0167-6369 |
| DOI | 10.1007/s10661-015-4445-2 |
| 通讯作者 | Fu, Qing-Long(fuqinglong09@mails.ucas.ac.cn) |
| 英文摘要 | Heavy metals and Al in tea products are of increasing concern. In this study, contents of Al, Cd, Co, Cr, Cu, Ni, and Pb in commercially available green tea and its infusions were measured by ICP-MS and ICP-AES. Both target hazard quotient (THQ) and hazard index (HI) were employed to assess the potential health risk of studied metals in tea leaves and infusions to drinkers. Results showed that the average contents of Al, Cd, Co, Cr, Cu, Ni, and Pb in tea leaves were 487.57, 0.055, 0.29, 1.63, 17.04, 7.71, and 0.92 mg/kg, respectively. Except for Cu, metal contents were within their maximum limits (1, 5, 30, and 5 mg/kg for Cd, Cr, Cu, and Pb, respectively) of current standards for tea products. Concentrations of metals in tea infusions were all below their maximum limits (0.2, 0.005, 0.05, 1.0, 0.02, and 0.01 mg/L for Al, Cd, Cr(VI), Cu, Ni, and Pb, respectively) for drinking water, and decreased with the increase of infusion times. Pb, Cd, Cu, and Al mainly remained in tea leaves. The THQ from 2.33x 10(-5) to 1.47x10(-1) and HI from1.41x10(-2) to 3.45x10(-1) values in tea infusions were all less than 1, suggesting that consumption of tea infusions would not cause significant health risks for consumers. More attention should be paid to monitor Co content in green tea. Both THQ and HI values decreased with the increase of infusion times. Results of this study suggest that tea drinkers should discard the first tea infusion and drink the following infusions. |
| 收录类别 | SCI |
| WOS关键词 | BLACK TEA ; TRACE-ELEMENTS ; SOUTH CHINA ; PRODUCTS ; COPPER ; LEAD ; SOIL ; CHROMIUM ; ZN ; CU |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000355606500001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558399 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Fu, Qing-Long |
| 作者单位 | 1.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China 3.E China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China 4.Jiangxi Inst Analyzing & Testing, Nanchang 330029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Lanhai,Fu, Qing-Long,Achal, Varenyam,et al. A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2015,187(5):12. |
| APA | Li, Lanhai,Fu, Qing-Long,Achal, Varenyam,&Liu, Yonglin.(2015).A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China.ENVIRONMENTAL MONITORING AND ASSESSMENT,187(5),12. |
| MLA | Li, Lanhai,et al."A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China".ENVIRONMENTAL MONITORING AND ASSESSMENT 187.5(2015):12. |
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来源：南京土壤研究所
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