Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption
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 r...
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| Formato: | Tesis de pregrado |
| Lenguaje: | inglés |
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Universidad Peruana Unión
2021
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| _version_ | 1881510499103801344 |
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| author | Coaquira Ccahua, Washington Zhunaula Guaman, Sonia Tatiana |
| author2 | Huaman de la Cruz, Alex Ruben |
| author_browse | Coaquira Ccahua, Washington Huaman de la Cruz, Alex Ruben Zhunaula Guaman, Sonia Tatiana |
| author_facet | Huaman de la Cruz, Alex Ruben Coaquira Ccahua, Washington Zhunaula Guaman, Sonia Tatiana |
| author_sort | Coaquira Ccahua, Washington |
| collection | Repositorio institucional |
| description | 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. |
| escuela_str_mv | Escuela Profesional de Ingeniería Ambiental |
| format | info:eu-repo/semantics/bachelorThesis |
| id | oai:repositorio.upeu.edu.pe:20.500.12840/5227 |
| institution | UPeU |
| language | English |
| linea_str_mv | Biodiversidad y Calidad Ambiental |
| ocde_area_str_mv | Ciencias naturales |
| ocde_disciplina_str_mv | Ciencias de la tierra y del ambiente |
| ocde_str_mv | 1.05.08 |
| programa_nombre_str_mv | Ingeniería Ambiental |
| programa_uri_str_mv | http://upeu.edu.pe/sys/programas/programa/ingenieria-ambiental |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Universidad Peruana Unión |
| publisherStr | Universidad Peruana Unión |
| record_format | dspace |
| sede_str_mv | Lima |
| spelling | Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption Coaquira Ccahua, Washington Zhunaula Guaman, Sonia Tatiana Huaman de la Cruz, Alex Ruben Rice ICP-MS Dietary intake Risk assessment South America 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. 2021-10-15 2022-03-01T15:06:42Z 2022-03-01T15:06:42Z info:eu-repo/semantics/bachelorThesis https://hdl.handle.net/20.500.12840/5227 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/3.0/es/ application/pdf Universidad Peruana Unión PE oai:repositorio.upeu.edu.pe:20.500.12840/5227 2026-11-10T17:45:09Z |
| spellingShingle | Rice ICP-MS Dietary intake Risk assessment South America Coaquira Ccahua, Washington Zhunaula Guaman, Sonia Tatiana Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption |
| title | Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption |
| title_full | Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption |
| title_fullStr | Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption |
| title_full_unstemmed | Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption |
| title_short | Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption |
| title_sort | estimation of arsenic contents in rice purchased on peruvian markets and estimation of dietary intake by peruvians through rice consumption |
| topic | Rice ICP-MS Dietary intake Risk assessment South America |
| topic_facet | Rice ICP-MS Dietary intake Risk assessment South America |
| url | https://hdl.handle.net/20.500.12840/5227 |
| work_keys_str_mv | AT coaquiraccahuawashington estimationofarseniccontentsinricepurchasedonperuvianmarketsandestimationofdietaryintakebyperuviansthroughriceconsumption AT zhunaulaguamansoniatatiana estimationofarseniccontentsinricepurchasedonperuvianmarketsandestimationofdietaryintakebyperuviansthroughriceconsumption |