巴西蘑菇重金屬（鉛及鎘）含量調查

Investigation of Heavy Metals (Lead and Cadmium) in Agaricus blazei Murill

為瞭解市售巴西蘑菇中重金屬（鉛及鎘）含量之現況，於民國97年5月至10月間，由衛生局自進口商抽樣8件檢體，另本局自行至超市及量販店價購檢體5件，共計13件，依據行政院衛生署公告方法採用濕式法經由石墨板加熱消化前處理，再以感應耦合電漿質譜儀進行檢測。檢測結果，13件檢體之鎘含量為0.09~9.55 ppm，平均值為2.69 ppm；鉛含量為0.03~1.08 ppm，平均值為0.40 ppm。其中5件檢體之鎘含量為3.68~9.55 ppm，超出行政院衛生署公告之「食用菇類重金屬限量標準」（以乾重計，鎘2 ppm以下，鉛3 ppm以下）。

The heavy metals (cadmium and lead) contents in 13 Agaricus blazei Murill samples, including 8 samples collected by the local health officials from importer and 5 samples purchased from markets, were surveyed from May to October, 2008. These samples were digested in a graphite block digester and analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) for quantification. The average contents of cadmium and lead in 13 samples were 2.69 ppm (0.09-9.55 ppm) and 0.40 ppm (0.03-1.08 ppm) on dry weight base, respectively. Among these samples, the cadmium content of 5 samples did not comply with the maximum tolerable level of 2 ppm in edible mushrooms set by the Department of Health, Taiwan.