Bioaccumulation of heavy metal in wild growing mushrooms from Liangshan Yi nationality autonomous prefecture, China

Zhang, Dan; Gao, Tingyan; Ma, Ping; Luo, Ying; Su, Pengcheng

doi:10.1007/s11859-008-0302-2

Cited by 35 publications

(22 citation statements)

References 9 publications

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“…The content of elements in edible mushrooms has been found not only species-specific but also dependent on environmental pollution (Zabowski et al 1990;Carvalho et al 2005;Doğan et al 2006;Benbrahim et al 2006;Chen et al 2009;Garcia et al 2009;). On the other side, mushrooms can pick up considerable amounts of soil metals even in uncontaminated green regions, without anthropogenic influence (Isildak et al 2007) and a within-species variance in metal content, linked to geochemical and ecological factors, has been observed (Nonnis Marzano et al 2001;Nikkarinen and Mertanen 2004;Chudzyński and Falandysz 2008;Zhang et al 2008;Chudzyński et al 2009). This was reported also for toxic mercury (Hg) in two species, Boletus edulis and Macrolepiota procera (Falandysz and Chwir 1997;Falandysz et al 2007a, b;Falandysz and Gucia 2008) and what seems to limit the use of mushrooms as reliable bio-indicators.…”

Section: Introductionmentioning

confidence: 99%

The trace element content of top-soil and wild edible mushroom samples collected in Tuscany, Italy

Giannaccini

Betti

Palego

et al. 2012

Environ Monit Assess

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The amount of the trace elements As, Ba, Cd, Cr, Cu, Hg, Li, Mn, Ni, Pb, Rb, Se, Sr, and Zn was measured in top soils and edible mushrooms, Boletus edulis, Macrolepiota procera, collected at five distinct green microhabitats inside the Lucca province, North-Central Italy (years 2008-2009). Results showed a top soil element content within the Italian statutory limits. Concerning the amount of mushroom elements, we observed significant species-differences obtaining higher levels of Ni, Rb, and Se in B. edulis or As, Pb, Cu in M. procera. Bioaccumulation factors (BCFs: element in mushroom/element in soil) resulted species-dependent and element-selective: in particular, B. edulis preferentially accumulated Se (BCFs varying from 14 to 153), while M. procera mainly concentrated Cu (BCFs varying from 5 to 15). As well, both species displayed between-site BCF differences. By a multivariate principal component approach, cluster analysis (CA), we could resolve two main clusters of soil element composition, corresponding to the most ecologically divergent sites. Besides, CA showed no cluster relating to element contents of B. edulis at the different collection sites, while a separation in groups was found for M. procera composition with respect to harvesting locations, suggesting uptake systems, in this saprotrophic species, sensitive to microhabitat. Regarding consumer safety, Cd, Hg, Pb levels resulted sometime relevant in present samples, never reaching values from current literature on mushrooms collected in urban-polluted areas. Our findings encourage a deeper assessment of the molecular mechanisms of metal intake by edible mushrooms, encompassing genetic biochemical and geo-ecological variables, with particular awareness to element bioavailability in soils and fungi.

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Section: Introductionmentioning

confidence: 99%

The trace element content of top-soil and wild edible mushroom samples collected in Tuscany, Italy

Giannaccini

Betti

Palego

et al. 2012

Environ Monit Assess

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“…Arsenic in fruit bodies of wild-grown mushrooms from China was usually below 3 mg kg −1 dry weight (dw) [9][10][11][12][13][14]. The values were below 0.5 mg kg −1 dw for common cultivated species [15].…”

Section: Introductionmentioning

confidence: 99%

Arsenic Concentrations and Associated Health Risks in Laccaria Mushrooms from Yunnan (SW China)

Zhang

Yang

et al. 2014

Biol Trace Elem Res

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Some species of Laccaria have been known to contain relatively high levels of arsenic in Europe and are used as edible mushrooms in the southwest China. One population of Laccaria proxima and one population of L. vinaceoavellanea as well as topsoil (0-10 cm) they grew on were collected from natural habitats of Yunnan (SW China), while other samples such as Laccaria mushroom samples without soil were purchased from four different local markets in Yunnan. Concentrations of arsenic were determined in fruit bodies of the mushrooms and in the soils by using atomic fluorescence spectrometry to assess potential health risks of these species. The mean arsenic concentrations in caps were 135, 14.1-143, 5.5 and 130-163 mg kg(-1) dry weight (dw) for Laccaria amethystina, Laccaria laccata, L. proxima and L. vinaceoavellanea, respectively. The mean value for bioconcentration factor of arsenic in caps of L. vinaceoavellanea was 29.1 for soil with arsenic content at 5.6 mg kg(-1) dw, which indicate that L. vinaceoavellanea is an accumulator for arsenic. Caps of L. amethystina, L. laccata and L. vinaceoavellanea consumed at a volume of 300 g fresh weight for a single meal in a week can yield an exposure amount of arsenic at 4.1, 0.42-4.3 and 3.9-4.9 mg, respectively. These values are higher than the limit dose for the intake of inorganic arsenic recommended by the Joint FAO/WHO Expert Committee on Food Additives.

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“…Moreover, they provide a valuable source of fiber, vitamins and minerals such as thiamin, riboflavin, vitamin D, potassium, phosphorus, iron and calcium [5,6]. It has been known for long that mushrooms are able to accumulate large amounts of heavy metals [7] what makes them ideal for biomonitoring of environmental pollution-particularly contamination of forest ecosystems [8] . There are many factors that influence the presence of metals in mushrooms, for example climate, environmental conditions and concentration of macromolecules in the cell wall of each specific species [9].…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Determination and Health Risk Assessment of Oyster Mushroom <i>Pleurotus tuberregium</i> (Fr.) Singer, Collected from Selected Markets in Imo State. NIGERIA

Ihugba¹,

Nwoko²,

Tony-Njoku³

et al. 2018

ENV

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Oyster mushroom Pleurotus tuberregium (Fr.)(Sing), Ǫsu, is a common mushroom which is used as food or medicine, more commonly as a soup thickener. This study investigated the presence of heavy metals (Zn, Pb, Ni, Cu) in wild samples of Pleurotus tuberregium sclerotia consumed within Imo state. The oyster mushrooms purchased from different markets from Imo State were mineralized with H 2 SO 4 and HNO 3 and analyzed using flame Atomic Absorption Spectrophotometer (AAS) Thermo Scientific model. The mean concentrations of Pb: 0.13 mg/kg (ranged 0.04±0.005mg/kg to 0.35±0.005mg/kg), Zn: 1.26mg/kg (ranged from 0.03 ± 0.007 mg/kg to 3.25 ± 0.01 mg/kg) and Ni and Cu were 0.0001mg/kg, 0.164mg/kg, respectively. These results were compared with the data from literature and levels set by regulatory authorities, with the conclusion that the consumption of oyster mushroom sclerotium does not pose a toxicological risk. The Zn, Pb, Ni and Cu content of the studied products would contribute to only about 7.4%, 30.3%, 0.001% and 1.91%, respectively of the provisional tolerable weekly intake of Zn, Pb, Ni and Cu. The Cu and Zn contents would contribute to nutritional intake of the metal in the general population. It is recommended that the outer layers of the sclerotia be properly scrapped and washed before use to reduce air-borne metal contamination.

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Bioaccumulation of heavy metal in wild growing mushrooms from Liangshan Yi nationality autonomous prefecture, China

Cited by 35 publications

References 9 publications

The trace element content of top-soil and wild edible mushroom samples collected in Tuscany, Italy

The trace element content of top-soil and wild edible mushroom samples collected in Tuscany, Italy

Arsenic Concentrations and Associated Health Risks in Laccaria Mushrooms from Yunnan (SW China)

Heavy Metal Determination and Health Risk Assessment of Oyster Mushroom <i>Pleurotus tuberregium</i> (Fr.) Singer, Collected from Selected Markets in Imo State. NIGERIA

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