ABSTRACT
Annona muricata and nauclea latifolia contain a variety of bioactive substances and phytochemicals, according to reports. The ethnomedicinal and antioxidant activities of the plant have been related to several of these chemical components. Using standard biochemical processes, this study looked for phytochemical constituents in A. muricata and Nauclea latifolia to analyze their proximate composition, mineral content, and in vitro antioxidant capabilities. The total antioxidant capacity (TAC), reducing power, and DPPH (1, 1-diphenyl 1-2-picryl-hydrazyl) HPLC (high performance liquid chromatography) of the crude extracts produced from methanol were assessed. Tannins, saponins, alkaloids, flavonoids, steroids, terpenoids, cardiac glycosides, phenol, and steriod were found to be absent in both Annona muricata and Nauclea latifolia plant extracts after phytochemical screening. The proximate analysis of moisture content, crude fibre, ash content, fat content, carbohydrate were 31.24±12.40, 31.24±12.40, 10.5±1.15, 0.085±0.003, 38.16±9.039 respectively in Annona muricata leave extract, and 28.66±0.16, 67.27±1.90, 9.33±1.01, 0.066±0.004, 5.48±2.59 respectively in Nauclea latifolia leave extract. Nauclea latifolia leave were found to be higher in moisture and crude fibre than those of Annona muricata, but Annona muricata had higher content fat and ash content. Apart from phosphorous, the examination shows that Nauclea latifolia leaves contain potassium, sodium, iron, calcium, zinc magnesium, copper and lead in mg/100g w/w; 385.57, 63.88, 41.42, 34.24, 28.73, 20.82, 2.91, 0.43 respectively which are the important minerals. DPPH percentage inhibition was higher in Annona muricata (89.73%) than Nauclea latifolia (79.73%), and higher reducing power, while in TAC Nauclea latifolia had the higher antioxidant activity than that of Annona muricata. Result from HPLC reveals querectin, ellagic acid, gallic acid are present.
