Data/hora: 09/06/2024 15:57:24

Provedor de dados: | Acta Agronómica
País: | Colombia
Título: | Cadmium voltametric quantification in table chocolate produced in Chiquinquira-Boyaca, Colombia
Autores: | Chaparro-Acuña,Sandra Patricia; Vargas-Moreno,Paola Andrea; Silva-Gómez,Leonardo Andrés; Cárdenas,Oswaldo Eliécer.
Data: | 2017-06-01
Ano: | 2017
Palavras-chave: | Food; Cocoa; Electrochemistry; Heavy metals; Validation.
Resumo: | Abstract: Bioaccumulation of heavy metals such as cadmium has been a major concern in scientific communities and international food organizations, given the great toxicological risk to the consumer, and in many places there is no detailed record of its actual content. In this way, the need arises to carry out a study and registration of the concentration of this metal in products such as table chocolate, of great consumption at regional and national level. Likewise, we seek to have effective quantification tools and a reliable and affordable method to achieve the aim of this research. In this research, Cadmium content in powdered and granulated table chocolate was determined, elaborated and commercialized in the municipality of Chiquinquira, Boyacá-Colombia, using the differential pulse voltammetric method of anodic redisolution (DPVMAR). Previously, the parameters of this method were evaluated, selecting selectivity, linearity, sensitivity, precision and accuracy with satisfactory results as follows: selective at a potential range of 0.54 to 0.64 V, sensitivity in ppb, R2&gt; 0.95, % CV &lt;10% % R&gt; 80%). Analysis of variance showed no significant statistical differences (P &lt;0.05) between the results. Cadmium quantification in samples of granulated and powder chocolate showed values of concentration between 214 and 260 ppb, with the highest concentrations of powder chocolate. Cadmium level did not exceed the tolerable weekly intake limit for this type of food.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000200172
Editor: | Universidad Nacional de Colombia
Relação: | 10.15446/acag.v66n2.58476
Formato: | text/html
Fonte: | Acta Agronómica  v.66 n.2 2017
Fonte: | info:eu-repo/semantics/openAccess