Occurrence, distribution and estimated intake of mercury and selenium from sclerotia of the medicinal fungus Wolfiporia cocos from China
文献类型： 外文期刊
作者： Falandysz, Jerzy 1 ; Saba, Martyna 1 ; Zhang, Ji 3 ; Hanc, Anetta 4 ;
作者机构： 1.Univ Gdansk, Environm Chem & Ecotoxicol, Gdansk, Poland
2.Univ Cartagena, Sch Pharmaceut Sci, Environm & Computat Chem Grp, Zaragocilla Campus, Cartagena 130015, Colombia
3.Yunnan Acad Agr Sci, Med Plants Res Inst, Kunming 650200, Yunnan, Peoples R China
4.Adam Mickiewicz Univ, Dept Trace Element Anal Spect Method, Umultowska 89b, PL-61614 Poznan, Poland
关键词： Traditional herbal medicine; Foods; Fungi; Organic food; Wild food; Wild medicine
期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）
ISSN： 0045-6535
年卷期： 2020 年 247 卷
页码：
收录情况： SCI
摘要： The contamination and distribution of mercury and selenium in the Chinese medicinal fungus Wolfiporia cocos was investigated. The sclerotial mercury concentrations ranged from 0.0043 to 0.027 mg kg(-1) dry biomass (db) in the inner white part and 0.019-0.074 mg kg(-1) db in the shell (outer part), while selenium concentrations ranged from < 0.00048 to 0.0040 mg kg(-1) db (white) and 0.0034-0.038 mg kg(-1) db (shell). Positive correlations were found for mercury, as well as for mercury and selenium but they were not consistent for both morphological parts. Mercury concentrations exceeded selenium in 16 of 17 white part pools (molar quotient 0.53 to > 10) and in 11 of 17 shell pools (quotient 0.37 to 3.2). The estimated maximal exposure to mercury contained in sclerotial products based on 45 g per capita daily intake for a 60 kg individual over one week, was 0.000020 mg kg(-1) body mass (bm; white) and 0.000055 mg kg(-1) bm (shell) on a daily basis, and 0.00014 mg kg(-1) bm (white) and 0.00039 mg kg(-1) bm (shell) on a weekly basis. Relative to mercury, the corresponding intake rates of selenium were considered very low, i.e., they averaged on a daily basis at 0.00075 mg kg(-1) bm (white) and 0.0097 mg kg(-1) bm (shell) with maximum intake at 0.0030 mg kg(-1) bm (white) and 0.028 mg kg(-1) bm (shell). (C) 2020 Elsevier Ltd. All rights reserved.
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