Evaluation of antioxidant activity, nutritional and mineral composition of Moringa (Moringa Oleifera) and Ginger (Zingiber Officinale) leaves, flowers and rhizome

Two tropical and subtropical plants that are highly prized and well-known for their rich nutritional qualities, numerous medical uses, and overall health advantages are Moringa (Moringa Oleifera) and Zinger (Zingiber Officinale). This study investigates the antioxidant activity, nutritional composition, and mineral content of Moringa Oleifera and Zingiber Officinale, focusing on their leaves, flowers, and rhizomes. Utilizing solvent extraction with ethanol and evaluated the antioxidant properties using DPPH radical scavenging and ferric reducing antioxidant power (FRAP) assays, alongside phytochemical analyses for total phenol and flavonoid content. Our results indicate that Moringa leaves exhibit superior antioxidant activity and the highest total phenol and flavonoid content, while ginger rhizome demonstrates significant ferric ion reduction capability. Nutritional analysis revealed that Moringa leaves are rich in protein, ash, and minerals, particularly calcium and iron, surpassing other plant parts and ginger samples. Conversely, ginger rhizome has higher moisture content but lower protein and mineral levels. These findings highlight the distinct health benefits and nutritional superiority of Moringa leaves, suggesting their potential as a valuable dietary supplement, particularly in addressing deficiencies in calcium and iron.