Evaluation of heavy metal concentrations of edible wild-grown mushrooms from China |
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| Authors: | Xuemei Wang Honggao Liu Ji Zhang Tao Li |
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| Institution: | 1. College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China;2. Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China;3. Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China;4. Yunnan Technical Center for Quality of Chinese Materia Medica, Kunming, China;5. College of Resources and Environment, Yuxi Normal University, Yuxi, China |
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| Abstract: | ABSTRACTThe heavy metal contents (Co, Cu, Fe, Mn, Ni, and Zn) of eight species of wild edible mushrooms from China were determined. The analyses were performed using inductively coupled plasma atomic emission spectrophotometry after microwave digestion. The contents of Co, Cu, Fe, Mn, Ni, and Zn in caps of mushroom samples were 0.7–7.2, 16.2–70.4, 371–1315, 12.5–29.8, 7.1–58.5, and 77.8–187.4 mg kg?1 dry matter (dm), respectively, while considerable differences were found to be 1.8–25.9, 9.8–36.3, 288–6762, 13.3–103.9, 5.9–78.7, and 38.7–118 mg kg?1 dm for stipes. The results indicated that higher levels of Co, Fe, and Ni were found in the mushrooms samples analyzed. Zinc and manganese levels were similar to previous reports, whereas Cu was lower than literature values. Correlation analysis suggested that significant correlations were found between the minerals determined and the greatest amount of contamination is associated with Co, Mn, Ni, and Fe. The results of this study indicate that heavy metal contents in mushroom species are mainly related to the mineral resources of sampling sites. |
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| Keywords: | Food fungi heavy metals edible mushrooms |
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