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Title: Occurrence of inorganic arsenic in edible Shiitake (Lentinula edodes) products
Author: Llorente-Mirandes, Toni
Barbero Castro, Mercedes
Rubio i Rovira, Roser
López Sánchez, José Fermín
Keywords: Arsènic
Bolets comestibles
Toxicologia alimentària
Química organometàl·lica
Edible mushrooms
Food toxicology
Organometallic chemistry
Issue Date: 1-Nov-2014
Publisher: Elsevier B.V.
Abstract: The present study reports arsenic speciation analysis in edible Shiitake (Lentinula edodes) products. The study focused on the extraction, and accurate quantification of inorganic arsenic (iAs), the most toxic form of arsenic, which was selectively separated and determined using anion exchange LC-ICPMS. A wide variety of edible Shiitake products (fresh mushrooms, food supplements, canned and dehydrated) were purchased and analysed. A cultivated Shiitake grown under controlled conditions was also analysed. The extraction method showed satisfactory extraction efficiencies (>90%) and column recoveries (>85%) for all samples. Arsenic speciation revealed that iAs was the major As compound up to 1.38 mg As per kg dm (with a mean percentage of 84% of the total arsenic) and other organoarsenicals were found as minor species. Shiitake products had high proportions of iAs and therefore should not be ignored as potential contributors to dietary iAs exposure in populations with a high intake of Shiitake products.
Note: Versió postprint del document publicat a:
It is part of: Food Chemistry, 2014, vol. 158, num. 1, p. 207-215
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ISSN: 0308-8146
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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