Czech J. Food Sci., 2019, 37(6):425-431 | DOI: 10.17221/183/2018-CJFS

Analysis of total arsenic content in purchased rice from EcuadorFood Analysis, Food Quality and Nutrition

Oliva L. Atiaga-Franco1,2, Xose L. Otero2, Alejandrina Gallego-Picó3, Luis A. Escobar-Castañeda4, Juan C. Bravo-Yagüe3, David Carrera-Villacrés*,1,5
1 Departamento de Ciencias de la Tierra y de la Construcción, Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador
2 Departamento de Edafología y Química Agrícola, Facultad de Biología, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
3 Departamento de Ciencias Analíticas, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Madrid, Spain
4 Departamento de Ciencias Exactas, Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador
5 Facultad de Ingeniería en Geología Minas Petróleos y Ambiental (FIGEMPA), Universidad Central del Ecuador, Quito, Ecuador

Natural and anthropogenic sources contribute to arsenic contamination in water and human food chain in Andean countries. Human exposure to arsenic via rice consumption is of great concern in countries where this crop is the dominant staple food, and limited information is available on the arsenic contamination on rice in Ecuador. This work was to contribute to the lack of knowledge analysing total arsenic by hydride generation-atomic absorption spectrometry in the samples of white, brown and parboiled rice purchased in Ecuadorian markets and produced in the two main rice wetlands in Ecuador, Guayas and Los Ríos, were carried out. For the samples from Guayas, arsenic concentration in white, brown and parboiled rice were 0.174 ± 0.014, 0.232 ± 0.021, and 0.186 ± 0.017 mg/kg respectively, whereas samples of white rice from Los Ríos showed a total arsenic level of 0.258 ± 0.037 mg/kg. This last arsenic concentration exceeds recommended maximum permissible limit by the FAO/WHO. Obtained data have available to estimate the Ecuadorian dietary exposure revealing serious health risk for population.

Keywords: Andean countries; arsenic; daily intake; healthy risk; rice; South America

Published: December 31, 2019  Show citation

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Atiaga-Franco OL, Otero XL, Gallego-Picó A, Escobar-Castañeda LA, Bravo-Yagüe JC, Carrera-Villacrés D. Analysis of total arsenic content in purchased rice from Ecuador. Czech J. Food Sci.. 2019;37(6):425-431. doi: 10.17221/183/2018-CJFS.
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