Determination of Water-Soluble Arsenic Compounds in Commercial Edible Seaweed by LC-ICPMS

Llorente-Mirandes, Toni; Ruiz-Chancho, Maria José; Barbero, Mercedes; Rubio, R.; López-Sánchez, José Fermı́n

doi:10.1021/jf2040466

Cited by 50 publications

(39 citation statements)

References 36 publications

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“…Other studies have found significant levels of iAs in macroalgae, particularly documented in hijiki seaweed ( Sargassum fusiforme ), eg. (Rose et al, 2007) but also across other taxa (Tukai et al, 2002; Llorente-Mirandes et al, 2011; Duncan et al, 2015). Several studies have reported elevated iAs in Laminaria sp.…”

Section: Resultsmentioning

confidence: 99%

Concentrations and speciation of arsenic in New England seaweed species harvested for food and agriculture

Taylor

Jackson

2016

Chemosphere

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A survey of arsenic (As) concentrations and speciation was conducted on 10 species of seaweed from commercial harvesters and from collection at two sites in New England. Concentrations of As ranged from 4–106 mg/kg, mostly in the form of arsenosugars, with the distribution of arsenosugar analogs varying between taxa. In brown algae, As levels were correlated with phosphate concentrations, and arsenosugar speciation reflected differences in sulfur and phosphate concentrations between taxa. Several samples of the brown algae species Laminaria digitata contained significant levels of inorganic As (2.8–20 mg/kg), the most toxic form of As. A weak acid extraction with microwave heating was compared with a weaker methanol: water extraction method, and found to give slightly higher extraction efficiency with comparable relative concentrations of inorganic As, supporting the use of this faster and simpler extraction method for monitoring. Seaweed is a niche dietary item in the U.S. but its popularity is increasing; it is also used in agriculture and livestock farming which provide potential indirect routes for human exposure. The presence of occasional high concentrations of iAs, as well as the lack of toxicity studies on organic As species, suggest that monitoring of these high As foods is warranted.

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Section: Resultsmentioning

confidence: 99%

Concentrations and speciation of arsenic in New England seaweed species harvested for food and agriculture

Taylor

Jackson

2016

Chemosphere

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“…Current concentration data for the Netherlands indicate that only Hijiki contains inorganic As (10.3 mg kg -1 ). Also more in general, Hijiki appears to be the seaweed species with the highest inorganic As concentrations (Morita & Shibata 1990;Almela et al 2002;Laparra et al 2003;Almela et al 2006;Rose et al 2007;Llorente-Mirandes et al 2011), while other seaweed species contain mainly organic As species (Morita & Shibata 1990;Shibata et al 1992;Almela et al 2005). In fact, contamination levels of inorganic As in Hijiki investigated in other studies were lower in some cases and higher in others, indicating that, like in rice, the contamination in seaweed is very variable (Rose et al 2007;Nakamura et al 2008;Oguri et al 2014).…”

Section: As and As Species Concentrations In Foodmentioning

confidence: 88%

Arsenic: bioaccessibility from seaweed and rice, dietary exposure calculations and risk assessment

Brandon

Janssen

Wit-Bos

2014

Food Additives & Contaminants: Part A

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Arsenic is a metalloid that occurs in food and the environment in different chemical forms. Inorganic arsenic is classified as a class I carcinogen. The inorganic arsenic intake from food and drinking water varies depending on the geographic arsenic background. Non-dietary exposure to arsenic is likely to be of minor importance for the general population within the European Union. In Europe, arsenic in drinking water is on average low, but food products (e.g. rice and seaweed) are imported from all over the world including from regions with naturally high arsenic levels. Therefore, specific populations living in Europe could also have a high exposure to inorganic arsenic due to their consumption pattern. Current risk assessment is based on exposure via drinking water. For a good estimation of the risks of arsenic in food, it is important to investigate if the bioavailability of inorganic arsenic from food is different from drinking water. The present study further explores the issue of European dietary exposure to inorganic arsenic via rice and seaweed and its associated health risks. The bioavailability of inorganic arsenic was measured in in vitro digestion experiments. The data indicate that the bioavailability of inorganic arsenic is similar for rice and seaweed compared with drinking water. The calculated dietary intake for specific European Union populations varied between 0.44 and 4.51 µg kg⁻¹ bw day⁻¹. The margins of exposure between the inorganic intake levels and the BMDL0.5 values as derived by JECFA are low. Decreasing the intake of inorganic arsenic via Hijiki seaweed could be achieved by setting legal limits similar to those set for rice by the Codex Alimentarius Commission in July 2014.

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“…Concentrations of the total As in the shoots of SY (BLT treatment) were determined by NexION 300X ICP-MS (PerkinElmer, USA) (Llorente-Mirandes et al, 2011). Germanium (Ge) was used as an internal standard to calculate the matrix effect of rice plants on As signal.…”

Section: Extraction and Determination Of N P K And As In Rice Rootsmentioning

confidence: 99%

Effect of arsenite-oxidizing bacterium B. laterosporus on arsenite toxicity and arsenic translocation in rice seedlings

Gao

Xie

Zhu

et al. 2015

Ecotoxicology and Environmental Safety

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Determination of Water-Soluble Arsenic Compounds in Commercial Edible Seaweed by LC-ICPMS

Cited by 50 publications

References 36 publications

Concentrations and speciation of arsenic in New England seaweed species harvested for food and agriculture

Concentrations and speciation of arsenic in New England seaweed species harvested for food and agriculture

Arsenic: bioaccessibility from seaweed and rice, dietary exposure calculations and risk assessment

Effect of arsenite-oxidizing bacterium B. laterosporus on arsenite toxicity and arsenic translocation in rice seedlings

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