ArticleFoods (Basel, Switzerland)2026
Rapid Assessment of Honey Quality and Authenticity via Electrochemical Determination of L-Proline and 5-Hydroxymethyl-2-Furfural Using Modified Pencil Graphite Sensors.
Article in Foods (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Rapid and reliable quality control of honey is crucial for ensuring food safety and preventing food fraud. In this study, novel sensitive and selective molecularly imprinted polymer (MIP) sensors were developed for the direct and sequential determination of L-proline (L-Pro) and 5-hydroxymethyl-2-furfural (HMF). The sensors were fabricated via the electropolymerization of pyrrole (Py) on a pencil graphite electrode (PGE) surface, using L-Pro and HMF as template molecules. The linear working range for L-Pro and HMF using differential pulse voltammetry (DPV) is 10-1600 µM, with limits of detection determined as 5.39 µM and 4.81 µM, respectively. The MIP-PPy/PGEs demonstrated high selectivity against a 25-fold excess of structural analogues (response <25%). The sensors were highly reproducible (RSD 3.20-3.22%,
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