Arsenic hyperaccumulation and speciation in the edible ink stain bolete (Cyanoboletus pulverulentus)

被引：31
作者：
Braeuer, Simone [1 ]
Goessler, Walter [1 ]
Kamenik, Jan [2 ]
Konvalinkova, Tereza [3 ]
Zigova, Anna [4 ]
Borovicka, Jan [2 ,4 ]
机构：
[1] Karl Franzens Univ Graz, Inst Chem, Univ Pl 1, A-8010 Graz, Austria
[2] Czech Acad Sci, Nucl Phys Inst, Hlavni 130, Husinec Rez 25068, Czech Republic
[3] Czech Acad Sci, Inst Microbiol, Videnska 1083, Prague 14220 4, Czech Republic
[4] Czech Acad Sci, Inst Geol, Rozvojova 269, Prague 16500 6, Czech Republic
来源：
FOOD CHEMISTRY | 2018年 / 242卷
基金：
奥地利科学基金会;
关键词：
Edible mushrooms; Dimethylarsinic acid; Soil; Health risk; HPLC-ICPMS; MUSHROOMS; ARSENOBETAINE; EXTRACTION; MACROFUNGI; METALS; SOILS;
D O I：
10.1016/j.foodchem.2017.09.038
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The edible ink stain bolete (Cyanoboletus pulverulentus) was found to hyperaccumulate arsenic. We analyzed 39 individual collections determined as C. pulverulentus, mostly from the Czech Republic. According to our results, concentrations of arsenic in C. pulverulentus fruit-bodies may reach 1300 mg kg(-1) dry weight. In most collections, data for total and bioavailable arsenic in underlying soils were collected but no significant correlation between the soil arsenic content and arsenic concentrations in the associated fruit-bodies was found. Within the fruit-bodies, we found the majority of arsenic accumulated in the hymenium. Besides occasional traces of methylarsonic acid (MA), the arsenic speciation in all mushroom samples consisted solely of dimethylarsinic acid (DMA) and no inorganic arsenic was detected. Because of the carcinogenic potential of DMA, C. pulverulentus should not be recommended as an edible mushroom and its consumption should be restricted.
引用
收藏
页码：225 / 231
页数：7
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