Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/40513| Type: | Artigo de Periódico |
| Title: | Detection of several common adulterants in raw milk by mid-infrared spectroscopy and one-class and multi-class multivariate strategies |
| Authors: | Carina de Souza Gondim Roberto Gonçalves Junqueira Scheilla Vitorino Carvalho de Souza Itziar Ruisánchez Maria Pilar Callao |
| Abstract: | A sequential strategy was proposed to detect adulterants in milk using a mid-infrared spectroscopy and soft independent modelling of class analogy technique. Models were set with low target levels of adulterations including formaldehyde (0.074 g.L−1), hydrogen peroxide (21.0 g.L−1), bicarbonate (4.0 g.L−1), carbonate (4.0 g.L−1), chloride (5.0 g.L−1), citrate (6.5 g.L−1), hydroxide (4.0 g.L−1), hypochlorite (0.2 g.L−1), starch (5.0 g.L−1), sucrose (5.4 g.L−1) and water (150 g.L−1). In the first step, a one-class model was developed with unadulterated samples, providing 93.1% sensitivity. Four poorly assigned adulterants were discarded for the following step (multi-class modelling). Then, in the second step, a multi-class model, which considered unadulterated and formaldehyde-, hydrogen peroxide-, citrate-, hydroxide- and starch-adulterated samples was implemented, providing 82% correct classifications, 17% inconclusive classifications and 1% misclassifications. The proposed strategy was considered efficient as a screening approach since it would reduce the number of samples subjected to confirmatory analysis, time, costs and errors. |
| Subject: | Tecnologia de alimentos Leite |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | FAR - DEPARTAMENTO DE ALIMENTOS |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | 10.1016/j.foodchem.2017.03.022 |
| URI: | http://hdl.handle.net/1843/40513 |
| Issue Date: | Sep-2017 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S0308814617303874 |
| metadata.dc.relation.ispartof: | Food Chemistry |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Detection of several common adulterants in raw milk by MID-infrared spectroscopy and one-class and multi-class multivariate strategies.pdf | 923.1 kB | Adobe PDF | View/Open |
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