Melamine contamination in milk powder in Uruguay
Forty samples of milk powder purchased in Uruguay were analysed to assess melamine (MEL) levels. Trichloroacetic acid and acetonitrile were used to extract and precipitate milk proteins previously to clean up of the samples by solid-phase extraction and then were determined by liquid chromatography...
Guardado en:
| Publicado: |
2018
|
|---|---|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19393210_v11_n1_p15_GarciaLondono http://hdl.handle.net/20.500.12110/paper_19393210_v11_n1_p15_GarciaLondono |
| Aporte de: |
| id |
paper:paper_19393210_v11_n1_p15_GarciaLondono |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_19393210_v11_n1_p15_GarciaLondono2023-06-08T16:32:16Z Melamine contamination in milk powder in Uruguay HPLC Melamine milk powder Health risks Melamine Phase separation Trichloroacetic acid Average recovery HPLC Limit of detection Limit of quantifications Milk powder Milk protein Solid-phase extraction Ultra violet detection Liquid chromatography melamine triazine derivative animal bovine chemistry food contamination fractionation human limit of detection liquid chromatography milk powder procedures product safety Uruguay Animals Cattle Chemical Fractionation Chromatography, Liquid Consumer Product Safety Food Contamination Humans Limit of Detection Milk Powders Triazines Uruguay Forty samples of milk powder purchased in Uruguay were analysed to assess melamine (MEL) levels. Trichloroacetic acid and acetonitrile were used to extract and precipitate milk proteins previously to clean up of the samples by solid-phase extraction and then were determined by liquid chromatography coupled to ultraviolet detection. The limit of detection (LOD) and limit of quantification (LOQ)of MEL were 0.006 and 0.019 mg kg−1, respectively. Milk was fortified with MEL at three levels, producing average recoveries higher than 83.8%. The values for positive samples ranged from 0.017 to 0.082 mg kg−1. Nine samples were positive. Three of them had concentrations between LOD and LOQ. The mean MEL contamination was 0.028 mg kg−1. Consumption of milk powder containing these levels of MEL does not constitute a health risk for consumers. © 2017 Informa UK Limited, trading as Taylor & Francis Group. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19393210_v11_n1_p15_GarciaLondono http://hdl.handle.net/20.500.12110/paper_19393210_v11_n1_p15_GarciaLondono |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
HPLC Melamine milk powder Health risks Melamine Phase separation Trichloroacetic acid Average recovery HPLC Limit of detection Limit of quantifications Milk powder Milk protein Solid-phase extraction Ultra violet detection Liquid chromatography melamine triazine derivative animal bovine chemistry food contamination fractionation human limit of detection liquid chromatography milk powder procedures product safety Uruguay Animals Cattle Chemical Fractionation Chromatography, Liquid Consumer Product Safety Food Contamination Humans Limit of Detection Milk Powders Triazines Uruguay |
| spellingShingle |
HPLC Melamine milk powder Health risks Melamine Phase separation Trichloroacetic acid Average recovery HPLC Limit of detection Limit of quantifications Milk powder Milk protein Solid-phase extraction Ultra violet detection Liquid chromatography melamine triazine derivative animal bovine chemistry food contamination fractionation human limit of detection liquid chromatography milk powder procedures product safety Uruguay Animals Cattle Chemical Fractionation Chromatography, Liquid Consumer Product Safety Food Contamination Humans Limit of Detection Milk Powders Triazines Uruguay Melamine contamination in milk powder in Uruguay |
| topic_facet |
HPLC Melamine milk powder Health risks Melamine Phase separation Trichloroacetic acid Average recovery HPLC Limit of detection Limit of quantifications Milk powder Milk protein Solid-phase extraction Ultra violet detection Liquid chromatography melamine triazine derivative animal bovine chemistry food contamination fractionation human limit of detection liquid chromatography milk powder procedures product safety Uruguay Animals Cattle Chemical Fractionation Chromatography, Liquid Consumer Product Safety Food Contamination Humans Limit of Detection Milk Powders Triazines Uruguay |
| description |
Forty samples of milk powder purchased in Uruguay were analysed to assess melamine (MEL) levels. Trichloroacetic acid and acetonitrile were used to extract and precipitate milk proteins previously to clean up of the samples by solid-phase extraction and then were determined by liquid chromatography coupled to ultraviolet detection. The limit of detection (LOD) and limit of quantification (LOQ)of MEL were 0.006 and 0.019 mg kg−1, respectively. Milk was fortified with MEL at three levels, producing average recoveries higher than 83.8%. The values for positive samples ranged from 0.017 to 0.082 mg kg−1. Nine samples were positive. Three of them had concentrations between LOD and LOQ. The mean MEL contamination was 0.028 mg kg−1. Consumption of milk powder containing these levels of MEL does not constitute a health risk for consumers. © 2017 Informa UK Limited, trading as Taylor & Francis Group. |
| title |
Melamine contamination in milk powder in Uruguay |
| title_short |
Melamine contamination in milk powder in Uruguay |
| title_full |
Melamine contamination in milk powder in Uruguay |
| title_fullStr |
Melamine contamination in milk powder in Uruguay |
| title_full_unstemmed |
Melamine contamination in milk powder in Uruguay |
| title_sort |
melamine contamination in milk powder in uruguay |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19393210_v11_n1_p15_GarciaLondono http://hdl.handle.net/20.500.12110/paper_19393210_v11_n1_p15_GarciaLondono |
| _version_ |
1768543535028502528 |