METABOLOMICS AND ANXIOLYTIC STUDIES OF CARICA PAPAYA PEEL EXTRACT

Abstract

The research was motivated by the increasing prevalence of anxiety disorders worldwide and the limitations of current pharmacological treatments, which often carry undesirable side effects and high costs. At the same time, large quantities of papaya peel are discarded as agricultural waste despite being rich in bioactive compounds. This presented a unique opportunity to evaluate the medicinal potential of an underutilized natural resource.

The methodology involved several phases: (1) collection, authentication, and extraction of papaya peel; (2) phytochemical and fluorescence analyses to identify the presence of secondary metabolites; (3) Fourier-transform infrared spectroscopy (FTIR) to confirm functional groups and chemical composition; (4) in vivo behavioral models to assess anxiolytic potential; (5) biochemical assays including cortisol level measurement and other stress biomarkers; (6) metabolomic profiling to understand systemic effects; and (7) toxicological evaluation through acute and sub-acute toxicity studies .

The results showed that methanol extracts of papaya peel contained abundant flavonoids, alkaloids, phenols, glycosaponins, and terpenoids. These phytoconstituents have established roles in antioxidant, neuroprotective, and anxiolytic activity. FTIR further confirmed the presence of key functional groups linked to bioactive molecules. Behavioral studies demonstrated significant anxiolytic effects, as extract-treated groups displayed reduced anxiety-like behaviors in standard models compared to controls. These effects were consistent with reductions in serum cortisol levels, suggesting regulation of stress pathways.

The conclusion drawn from this study is that Carica papaya peel extract holds considerable promise as a natural, safe, and effective anxiolytic agent. By validating traditional claims and providing mechanistic insights through metabolomics, this research bridges the gap between ethnomedicine and modern pharmacology. It also highlights the potential of converting agricultural by-products into value-added therapeutic agents, contributing to both healthcare innovation and sustainable resource utilization.