Curasi Rafael, Nancy

Preferred name
Curasi Rafael, Nancy
Main Affiliation
Email
ncurasi@upeu.edu.pe
Scopus Author ID

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    Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption
    (2021-04-29)
    Sonia Tatiana Zhunaula Guaman
    ;
    Washington Coaquira Ccahua
    ;
    ;
    Ide Unchupaico Payano
    ;
    Julio Miguel Ángeles Suazo
    Rice (Oryza sativa L) is an important source of essential elements but also can contain high As concentrations, which may be consumed and causes health effects. This work aimed to contribute to the lack of information quantifying the total arsenic (tAs) in 31 domestic rice (white rice, n=19; brown rice, n=7; parboiled rice, n=5) of different brands purchased in Peruvian markets. The tAs content was conducted by ICP-MS. The tAs concentration was compared to the maximum limits prescribed by regulatory agencies. Dietary intake (DI), dietary exposure (DE), and margin of exposure (MOE) were estimated. tAs concentration in white, brown and parboiled rice were 0.292 ± 0.106 mg/kg, 0.401 ± 0.081 mg/kg, 0.229 ± 0.03 mg/kg, respectively. Arsenic concentration in white rice exceeded limits recommended by FAO/WHO (0.20 mg kg-1), and European legislation (0.25 mg kg-1), but no Mercosul limits (0.3 mg kg-1). The DE showed that, on average, Peruvians consume 5.60 μg As kg-1 BW weekly. The MOE value was higher than 1 at the mean dietary exposure level. Our findings suggest that the health risk from dietary arsenic exposure is low for the Peruvian population. However, more studies are needed to reduce dietary arsenic exposure in Peru.
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    Biomonitoring of Potentially Toxic Elements in Two Polluted Areas from Lurigancho-Chosica Using the genus Tillandsia latifolia and T. purpurea as Biomonitor
    (2021-03-05)
    Alex Rubén Huamán De La Cruz
    ;
    Hérica Yauri Molina
    ;
    Xiomara Rosa Vilca Monrroy
    ;
    Karmel Beringui
    ;
    Andres Camargo Caysahuana