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https://locus.ufv.br//handle/123456789/21823
Tipo: | Artigo |
Título: | In situ determination of urea in milk employing a portable and low-cost lLED photometer |
Autor(es): | Suarez, Willian Toito Alvarenga Junior, Benedito Roberto de Franco, Mathews de Oliveira Krambeck Gabriel, Wesley Lira Oliveira, Denílson Mendes de Santos, Vagner Bezerra dos |
Abstract: | A low-cost and portable LED photometer was developed and applied for the in situ determination of urea in milk. The determination was based on Berthelot’s reaction. After optimization, the best experimental variables, the detection limit and quantification limit were 1.8 × 10^−4 and 8.0 × 10^−4 mol L^−1, respectively. The percentage recovery varied between 95.6 and 105%. The paired t test was performed for the cow and goat milk determination and the results agreed at a 95% level of confidence for the in situ determination. Supported by the results, the analytical method based on LED photometer demonstrated that it can be employed for urea determination in food production for quality purpose, and small rural producers can evaluate the quality of herd feeding due to the easy handling, portability, fast instrumental response, and low cost of the materials used. |
Palavras-chave: | LED photometer Urea Milk Food control |
Editor: | Food Analytical Methods |
Tipo de Acesso: | Springer Nature Switzerland AG. |
URI: | https://doi.org/10.1007/s12161-017-1087-8 http://www.locus.ufv.br/handle/123456789/21823 |
Data do documento: | 11-Nov-2017 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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artigo.pdf Until 2100-12-31 | texto completo | 554,55 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
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