Year: 2025
Type: article
Abstract: In this study, an electrochemical method is presented for the direct determination of tyramine in beer samples. A multi-walled carbon nanotubes (MWCNTs) modified glassy carbon electrode (GCE) was developed for the detection and quantification of tyramine at a low potential of 0.53 V. The electrochemical process and sensor parameters were thoroughly investigated to establish optimal analysis conditions. The method demonstrated a linear response range from 3 to 9 µM, with a limit of detection (LOD) of 0.34 µM and a limit of quantification (LOQ) of 1 µM. The developed sensor was successfully applied to commercial beer samples for tyramine analysis. The results were compared with those obtained using the standard high-performance liquid chromatography (HPLC) technique, highlighting the sensor's potential for tyramine determination in aqueous food samples without the need for complex sample preparation.
Source: Sensors
DOI: 10.3390/s25113322
Authors: Cláudio M. R. Almeida, Maria Fátima Barroso, Manuela M. Moreira, Júlia M. C. S. Magalhães, Luisa Durães
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,137
Awards: G1524713573, G1563530244, 3D4Food - A sustainable and innovative strategy in fruit losses upcycling: 3D printing as a novel tool to create value-added functional foods, G5060597744, G5165341646, G5325813232, Innovative sensor approaches for detection and quantification of biogenic amines in food products, G7238327462, G7274453403
OpenAlex ID: W4410721932