Inorganic and organic arsenic compounds in Slovenian mushrooms: comparison of arsenic-specific detectors for liquid chromatography

Slekovec, Metka; Goessler, Walter; Irgolic, Kurt J.

doi:10.3184/095422999782775618

Cited by 23 publications

(10 citation statements)

References 5 publications

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“…According to the literature, the proportion of the most toxic inorganic forms is much lower than that of organic arsenic Gonzálvez et al, 2009;Slekovec et al, 1999). Given the difficulty in distinguishing analytically between the different forms of arsenic, most studies measuring arsenic exposure for food consumption are based on total arsenic data (AESAN, 2011).…”

Section: Food Repercussionsmentioning

confidence: 99%

Total contents of arsenic and associated health risks in edible mushrooms, mushroom supplements and growth substrates from Galicia (NW Spain)

Melgar

Alonso

García

2014

Food and Chemical Toxicology

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Section: Food Repercussionsmentioning

confidence: 99%

Total contents of arsenic and associated health risks in edible mushrooms, mushroom supplements and growth substrates from Galicia (NW Spain)

Melgar

Alonso

García

2014

Food and Chemical Toxicology

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“…1, 5) [1,2]. Until relatively recently it was thought that the natural occurrence of arsenobetaine was restricted to the marine environment but it has now been shown to occur in mushrooms [4] and in earthworms [5] living in arsenic polluted environments. Until relatively recently it was thought that the natural occurrence of arsenobetaine was restricted to the marine environment but it has now been shown to occur in mushrooms [4] and in earthworms [5] living in arsenic polluted environments.…”

Section: Introductionmentioning

confidence: 99%

An origin for arsenobetaine involving bacterial formation of an arsenic?carbon bond

RITCHIE¹

2004

FEMS Microbiology Letters

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Lysed-cell extract of a Pseudomonas sp. was shown to catalyse bioconversion of dimethylarsinoylacetate to arsenobetaine and dimethylarsinate. Provision of the universal methyl donor S-adenosylmethionine to bioconversion mixtures promoted both the rate and extent of arsenobetaine formation. These findings suggest that in the proposed biosynthesis of arsenobetaine from dimethylarsinoylethanol, oxidation (i.e. the formation of the carboxymethyl group of dimethylarsinoylacetate) would precede the reduction and methylation at the arsenic atom. The presence of enzyme(s) capable of methylating dimethylarsinoylacetate in a bacterial isolate from marine mussel (Mylitus edulis), highlights a possible direct involvement of prokaryotic organisms in the biosynthesis of organoarsenic compounds within marine animals.

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“…A study on arsenic speciation in shiitake (Lentinula edodes) revealed that inorganic arsenic was the major arsenic compound [39]. Slekovec et al [40] reported that 97 % of the arsenic was found to be dimethylarsinic acid in L. amethystina, whereas predominant arsenic compound was arsenate (~80 %) in L. laccata. In further studies, more Laccaria mushroom and soil samples should be included in the study on arsenic speciation and mobilisation.…”

Section: Resultsmentioning

confidence: 98%

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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Inorganic and organic arsenic compounds in Slovenian mushrooms: comparison of arsenic-specific detectors for liquid chromatography

Cited by 23 publications

References 5 publications

Total contents of arsenic and associated health risks in edible mushrooms, mushroom supplements and growth substrates from Galicia (NW Spain)

Total contents of arsenic and associated health risks in edible mushrooms, mushroom supplements and growth substrates from Galicia (NW Spain)

An origin for arsenobetaine involving bacterial formation of an arsenic?carbon bond

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

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