Lipid and protein oxidation in Cyprinus carpio muscle by environmentally relevant concentrations of glibenclamide

Diabetes mellitus (DM2) was considered a more common comorbidity and was associated with high mortality due to metabolic disease in the COVID-19 pandemic. For this reason, glibenclamide (GLI) was commonly prescribed for its control. However, it has been found in environmentally relevant concentrations in various water reservoirs due to its high consumption. Common carp (Cyprinus carpio ), besides its nutritional properties and economic importance, is also considered a good bioindicator for assessing environmental health and pollutants presence; nonetheless, there are currently insufficient studies on the effect of GLI on the physicochemical and textural properties of the muscle of this bioindicator species. In this study, the effect of this drug at two environmentally relevant concentrations (50 and 1,000 ng/L) at five exposure times (every 24 up to 96 h) on the quality of carp muscle was investigated. Parameters such as carbonylated proteins, lipid peroxidation, total sulfhydryl content, water holding capacity, pH, electrophoretic profile, and texture profile analysis were determined. Regardless of the concentration of GLI used, the evaluated parameters showed significant muscle damage; therefore, it must be emphasized that this emerging pollutant not only damages environment, but also affects edible species present in different water reservoirs.