Development of a Fast, Low-Cost, and Green Method to Quantify Allura Red AC Dye in Candies through Digital Images Using a Smartphone.

ABSTRACT: The artificial azo dye Allura Red AC (E129), widely used in candy, may pose health risks, such as hypersensitivity and hyperactivity, underscoring the need for its monitoring and quantification to ensure food safety. This study adapted a traditional sample preparation approach aligned with the principles of green analytical chemistry (GAC) and introduced a low-cost, smartphone-based colorimetric method employing digital image acquisition. The technique enables the simultaneous capture of both the analytical curves and the samples in a single image by using a 3D-printed digital imaging chamber. The data were processed using the RGB color model and analyzed by partial least-squares with REDGIM software. For the adapted UV-vis method, accuracy at two concentration levels ranged from 77.33% ±

SUBMITTER: Coutinho MEB 

PROVIDER: S-EPMC12771147 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature