Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/78381| Type: | Artigo de Periódico |
| Title: | Capillary zone electrophoresis for fatty acids with chemometrics for the determination of milk adulteration by whey addition |
| Authors: | Thiago de Oliveira Mendes Brenda Lee Simas Porto Maria Jose Valenzuela Bell Ítalo Tuler Perrone Marcone Augusto Leal de Oliveira |
| Abstract: | Adulteration of milk with whey is difficult to detect because these two have similar physical and chemical characteristics. The traditional methodologies to monitor this fraud are based on the analysis of caseinomacropeptide. The present study proposes a new approach to detect and quantify this fraud using the fatty acid profiles of milk and whey. Fatty acids C14:0, C16:0, C18:0, C18:1, C18:2 and C18:3 were selected by gas chromatography associated with discriminant analysis to differentiate milk and whey, as they are present in quite different amounts. These six fatty acids were quantified within a short time by capillary zone electrophoresis in a set of adulterated milk samples. The correlation coefficient between the true values of whey addition and the experimental values obtained by this technique was 0.973. The technique is thus useful for the evaluation of milk adulteration with whey, contributing to the quality control of milk in the dairy industry. |
| Subject: | Fraude Soro do leite Leite Ácidos gordurosos não-saturados na nutrição humana Eletroforese capilar Alimentos - Adulteração e inspeção Controle de qualidade |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE QUÍMICA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | https://doi.org/10.1016/j.foodchem.2016.07.035 |
| URI: | http://hdl.handle.net/1843/78381 |
| Issue Date: | 15-Dec-2016 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S0308814616310573?via%3Dihub |
| metadata.dc.relation.ispartof: | Food Chemistry |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Capillary zone electrophoresis for fatty acids with chemometrics for the determination of milk adulteration by whey addition.pdf | 776.04 kB | Adobe PDF | View/Open |
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