Browsing by Author "Valencia, Santiago"
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Item Identificación de plaguicidas en el fruto de la piña, recolectadas en la ciudad de Santiago de Cali, por cromatografía gaseosa y cromatografía líquida de alta resolución acopladas a espectrometría de masas(Universidad Santiago de Cali, 2024) Yanes Franky, Bieriz Camila; Valencia, Santiago; Gutiérrez Moreno, Nini Johanna (Directora); Peña Herrera, Juan Manuel (Director)This study aimed to identify potential agrochemical residue compounds in the pulp of pineapples marketed in Santiago de Cali. The analytes were cleaned and extracted using the QuEChERS method in the dispersed phase, and the extracts were then analyzed by gas chromatography and high-performance liquid chromatography coupled to mass spectrometry. Identification was carried out for 24 pineapple units in different maturation states: green, semi-ripe, and ripe. The results of the physicochemical characterization complied with the Colombian technical standard. The presence of thiabendazole and tris(2-chloroethyl) phosphate was detected only by liquid chromatography. The results confirmed an average of 0.031 mg/kg in green pineapples, 0.033 mg/kg in semi-ripe pineapples, and 0.021 mg/kg for a single sample below the quantification limit in ripe pineapples for thiabendazole and the presence of tris(2-chloroethyl) phosphate in all three maturation states, all below the quantification limit. It is concluded that the levels of agrotoxic compounds in pineapples from Santiago de Cali are within the established limits and are optimal for human consumption.