Vol. 6, Issue 2, Part E (2024)

The present study investigates the correlation between mineral composition, bioactive compounds, and antioxidant potential in different Sudanese onion (Allium cepa L.) genotypes. Quantitative analysis of essential minerals, including calcium, potassium, iron, and zinc, was performed alongside the estimation of key bioactive compounds such as total phenolics and flavonoids. Antioxidant activity was assessed using DPPH and FRAP assays to evaluate free radical scavenging capacity. Significant variations were observed among the genotypes, indicating a strong genotype-dependent influence on nutritional and antioxidant profiles. A positive correlation was found between phenolic content and antioxidant activity, suggesting that bioactive constituents contribute substantially to the antioxidant potential of onion genotypes. The findings highlight the nutritional and functional value of Sudanese onions as promising sources of natural antioxidants, which may be beneficial for health promotion and the development of functional food products.