Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/56793
Título: Optimization and validation of a smartphone-based method for the determination of total sterols in selected vegetable oils by digital image colorimetry
Palavras-chave: Mobile device
Bioactive compounds
Spectrophotometry
Phytosterols
Data do documento: Abr-2023
Editor: Elsevier
Citação: RESENDE, L. M. B.; MAGALHÃES, E. J.; NUNES, C. A. Optimization and validation of a smartphone-based method for the determination of total sterols in selected vegetable oils by digital image colorimetry. Journal of Food Composition and Analysis, [S.l.], v. 117, Apr. 2023.
Resumo: This study aimed to optimize and validate a smartphone-based method to determine the total sterols content in edible vegetable oils by digital image colorimetry (DIC). The spectrophotometric method was used as a reference for comparison. Better linearity was obtained using blue (B) values from red, green, and blue (RGB) with a mean R² of 0.96 and a standard error close to that of the spectrophotometric method. The relative standard deviations were less than 14.0% for the repeatability and approximately 10.0% in terms of intermediate precision. The apparent recovery ranged from 91.6% to 107.9%. The limits of detection and quantification were 6.49 mg 100 g−1 and 34.82 mg 100 g−1, respectively. The smartphone-based DIC performed similarly to spectrophotometry in the determination of total sterols in vegetable oils using the Liebermann-Burchard colorimetric method.
URI: https://www.sciencedirect.com/science/article/pii/S0889157522007293
http://repositorio.ufla.br/jspui/handle/1/56793
Aparece nas coleções:DCA - Artigos publicados em periódicos

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