Evaluación de los niveles de plomo y cadmio en diferentes variedades de caña de azúcar en El Triunfo para asegurar la inocuidad alimentaria mediante la elaboración de una Propuesta de Manejo Integral
No hay miniatura disponible
Fecha
2020-10
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
El presente trabajo de investigación contempla la evaluación del contenido de cadmio y plomo en diferentes muestras de variedades de caña de azúcar provenientes del cantón el Triunfo con el propósito de la elaborar una propuesta de manejo integral del cultivo que asegure la inocuidad alimentaria; tomando como referencia otros estudios que demostraron la presencia de metales pesados en alimentos y suelos de cultivos del Ecuador. Para el análisis mediante el método de espectrofotometría de absorción atómica en horno de grafito, se eligieron muestras por triplicado de cada variedad de caña: ECU 01, EC 02, CC1 Y CC2. Todas las muestras presentaron concentraciones de cadmio inferiores al límite permisible 0,1 mg kg-1; se detectaron concentraciones de plomo superiores al límite permisible de la normativa internacional 0,1 mg kg-1, evidenciando la mayor concentración en la variedad ECU 01 (0,376 ± 0,417 mg kg-1). La variedad EC 02 evidenció el menor porcentaje de concentración de ambos metales seguida de la Cenicaña con madurante (CC1) razón por la cual se propone el cultivo regular de ambas variedades y su uso para producir biocombustible a partir de la manufacturación de su materia prima. Se estimaron posibles soluciones para mitigar el impacto de estos contaminantes y puedan ser regulados dentro del marco legal aplicable. Este estudio pretende promover la investigación científica, el manejo de las buenas prácticas agrícolas en el cultivo de caña de azúcar y la obtención de bioenergía.
This research work contemplates the evaluation of the cadmium and lead content in different samples of varieties of sugar cane from the canton of El Triunfo with the purpose of preparing a proposal for the integral management of the crop that ensures food safety; taking as reference other studies that demonstrate the presence of heavy metals in food and crop soils of Ecuador. For the analysis using the graphite furnace atomic absorption spectrophotometry, triplicate samples of each cane variety were chosen ECU 01, EC 02, CC1 and CC2. All samples show cadmium concentrations below the permissible limit 0.1 mg kg-1; Lead concentrations higher than the permissible limit of the international standard 0.1 mg kg-1 were detected, showing the highest concentration in the ECU 01 variety (0.376 ± 0.417 mg kg-1). The variety EC 02 showed the lowest concentration percentage of both metals followed by the Cenicaña with ripening (CC1), which is why the regular cultivation of both varieties and their use to produce biofuel from the manufacture of its raw material is proposed. Possible solutions were estimated to mitigate the impact of these pollutants and can be regulated within the applicable legal framework. This study aims to promote scientific research, the management of good agricultural practices in the cultivation of sugar cane and the obtaining of bioenergy.
This research work contemplates the evaluation of the cadmium and lead content in different samples of varieties of sugar cane from the canton of El Triunfo with the purpose of preparing a proposal for the integral management of the crop that ensures food safety; taking as reference other studies that demonstrate the presence of heavy metals in food and crop soils of Ecuador. For the analysis using the graphite furnace atomic absorption spectrophotometry, triplicate samples of each cane variety were chosen ECU 01, EC 02, CC1 and CC2. All samples show cadmium concentrations below the permissible limit 0.1 mg kg-1; Lead concentrations higher than the permissible limit of the international standard 0.1 mg kg-1 were detected, showing the highest concentration in the ECU 01 variety (0.376 ± 0.417 mg kg-1). The variety EC 02 showed the lowest concentration percentage of both metals followed by the Cenicaña with ripening (CC1), which is why the regular cultivation of both varieties and their use to produce biofuel from the manufacture of its raw material is proposed. Possible solutions were estimated to mitigate the impact of these pollutants and can be regulated within the applicable legal framework. This study aims to promote scientific research, the management of good agricultural practices in the cultivation of sugar cane and the obtaining of bioenergy.
Descripción
Palabras clave
METALES PESADOS, CADMIO, PLOMO, CAÑA DE AZÚCAR, BÍOCOMBUSTIBLE