Browsing by Author "Bagadj Ghania"

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    Valorization of biological waste in ecosystem conservation
    (2025) Bagadj Ghania
    This research focuses on the evaluation of potato peels as a source of bioactive compounds with therapeutic and industrial potential. Following an in-depth literature review on biological residues and elements contained in potato peel, an aqueous extract was developed and analyzed. The presence of flavonoids, polyphenols, saponins and tannins was confirmed by phytochemical analysis. Antioxidant tests such as , 2,2-diphenyl-1-picrylhydrazyl , and ,Ferric Reducing Antioxidant Power, revealed significant activity, associated with a high concentration of polyphenols (45.2 mg EAG/g). In vitro anti-inflammatory activity demonstrated an inhibitory impact on protein denaturation of 69.8%, comparable to the effect of a standard anti-inflammatory agent. In vitro anti-inflammatory activity demonstrated an inhibitory impact on protein denaturation of 69.8%, comparable to the effect of a standard anti-inflammatory agent. Evaluation of antibacterial activity revealed moderate efficacy against the strains examined, particularly pronounced on Gram-positive bacteria. These data suggest that potato skins can be incorporated into antioxidant, anti-inflammatory or antimicrobial products, thus contributing to the sustainable valorization of agri-food residues. The work concludes that further studies, particularly in vivo, are essential to confirm the use of these extracts in food, pharmaceutical or cosmetic applications.