Phytochemical analysis, mineral composition and in vitro antioxidant activities of Celosia argentea leaves

Background: Celosia argentea, a traditional vegetable in West and Central Africa is widely grown for ornamental purpose in the tropics and subtropics such as in Malaysia. The aim of this study is to determine phytochemicals, mineral composition and in vitro antioxidant activities of Celosia argentea leaves. Methods: Qualitative phytochemical screening was carried out using standard procedures, Mineral analysis was carried out using Atomic Absorption Spectrophotometer (AAS) while antioxidant potential, free radical scavenging and reducing power scavenging activity were also carried out. Results: The phytochemical composition revealed the presence of active ingredients such as glycosides, steroids, Saponins, Phenols, Flavonoids, and alkaloids while mineral analysis showed higher concentration in calcium (295mg/100g) and least concentration in chromium (0.85mg/100g). Other minerals and their concentrations includes magnesium (122.53mg/100g), potassium (128.33mg/100g), sodium (71.32mg/100g), iron (35.16mg/100g), zinc (5.42mg/100g), copper (2.18mg/100g), manganese (1.86mg/100g). Moreover, DPPH (2, 2-diphenyl-1-picrylhydrazyl) scavenging activity and reducing power activity of Celosia argentea increased as the concentration increases. Conclusion: The present study reveals therapeutic potential of Celosia argentea leaves due to its bioactive compounds and minerals. Also, Celosia argentea possess powerful antioxidant activity and can therefore offer good protection against oxidative damage.