A brief review on recent high-performance platforms for electrochemical sensing of azo dye Allura Red (E129): food safety and pharmaceutical applications
Review paper
DOI:
https://doi.org/10.5599/jese.2517Keywords:
Electroanalysis, sensors, synthetic dyes, food analysis, food control, pharmaceutical analysis, drug analysis
Abstract
Artificial dyes are increasingly widespread, especially in foodstuffs and pharmaceutical products as an industry marketing strategy to attract consumers. Consumption of the synthetic azo dye Allura Red (AR) has potential risks to human health and can cause several adverse health effects such as genotoxicity, carcinogenicity, attention deficit hyperactivity disorder, allergic and asthmatic diseases in children. The limited number of electrochemical sensing platforms for AR successfully applied for safety assessment of foods, beverages, and drug formulations testifies that the food and pharmaceutical matrices present significant analytical challenges and there is still a need to amplify the analytical performances of these systems. The authors intensively reviewed recent papers (mainly since 2019) emphasizing electrode engineering, strategies for electrochemical signal amplification, and analytical applications in food and drug control. A critical discussion on the latest interesting innovations and perspectives of the most promising electrochemical tools for AR electroanalysis is presented. The challenges and limitations in the design of electrochemical sensors for AR analysis are also discussed with a view to providing new directions for future research and development of sustainable sensing devices, paving the way for advancements in this field.
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