Authors: Fangkun Zhu Li Qu Wenxiu Fan Meiying Qiao Hailing Hao Xuejing Wang
Publish Date: 2010/10/27
Volume: 179, Issue: 1-4, Pages: 191-199
Abstract
Eight heavy metals Cu Zn Fe Mn Cd Cr Ni and Pb in 14 different wildgrowing edible mushroom species Coprinus comatus Voluariella volvacea Pleurotus nebrodensis Hypsizigus marmoreus Hericium erinaceus Agrocybe aegerita Lenfinus edodes Collybia velutipes Agaricus bisporus Russula albida Clitocybe conglobata Pleurotus eryngii Lepista sordida and Pleurotus ostreatus collected from Yunnan province China were determined by inductively coupled plasmaatomic emission spectrometry after microwave digestion All element concentrations were determined on a dry weight basis The ranges of element concentrations for copper zinc iron manganese cadmium chromium nickel and lead were 68–319 429–943 675–843 135–113 006–058 107–427 076–51 and 067–129 mg/kg respectively In general iron content was higher than other metals in all mushroom species The levels of zinc cadmium and lead in some edible mushroom samples were found to be higher than legal limits The relative standard deviations were found below 10 The accuracy of procedure was confirmed by certified reference material
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