Selenium and organic- and inorganic-Hg in stir-fried mushrooms†

IF 2.6 3区化学 Q2 CHEMISTRY, ANALYTICAL

Analytical Methods Pub Date : 2025-07-02 DOI:10.1039/D5AY00794A

Jerzy Falandysz, Yuanzhong Wang, Małgorzata Rutkowska, Anetta Hanć and Alwyn R. Fernandes

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Abstract

Selenium (Se) and co-occurring total and organic mercury (THg and o-Hg) were investigated in wild edible mushroom species collected from Central Yunnan, Southwestern China. The regional terrain is known for being Se-deficient and consequential diseases such as Keshan and Kashin–Beck are endemic. “Pseudo-porcini” species, Boletus bainiugan and Butyriboletus roseoflavus, were Se-rich (means of 28 and 13 mg kg⁻¹ dry weight), while six other species contained tenfold lower concentrations. The two bolete species contained 4.1 and 2.8 mg kg⁻¹ dw of THg and 0.047 and 0.038 mg kg⁻¹ dw of o-Hg, respectively, with means of 0.22 and 0.01 mg kg⁻¹ dw in other species. Stir-frying enhanced analyte concentrations, favoring Se relative to Hg, in most species, particularly boletes. Health risk-benefit assessments of the stir-fried mushrooms using both the Se : Hg molar quotient and the Se health benefit value (HBVSe) showed strongly positive values for boletes and were favorable for other species except for Scleroderma yunnanense.

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炒蘑菇中的硒、有机汞和无机汞。

对云南中部野生食用菌中硒（Se）、总汞和有机汞（THg和o-Hg）含量进行了研究。该地区地形以缺硒而闻名，随之而来的疾病如克山病和大骨节病是地方性的。伪牛肝菌属（Boletus bainiugan和Butyriboletus roseoflavus）富含硒（平均28和13 mg kg-1干重），而其他6种的硒含量低10倍。两种含THg分别为4.1和2.8 mg kg-1 dw， 0 - hg分别为0.047和0.038 mg kg-1 dw，其他种的平均值分别为0.22和0.01 mg kg-1 dw。在大多数物种中，尤其是鱼中，炒能提高分析物浓度，有利于硒相对于汞。利用硒汞摩尔商和硒健康效益值（HBVSe）对炒蘑菇进行健康风险-效益评价，结果表明，炒蘑菇对钉螺呈强阳性，对除云南硬皮病外的其他菌种均有利。

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