Herein, the stem bark extract of Piptadeniastrum africanum Hook (F.) (used in folklore medicine for treating several illnesses), were screened for phytochemicals. The chemical screening revealed the presence of some phytochemicals - saponins, alkaloids, tannins, anthraquinones, glycosides and cardiac glycosides. Other phytochemicals - phenols and flavonoids - were absent in the bark extract. Proximate analysis on the bark extract also showed the presence of ash, fat, carbohydrate, moisture content and crude protein. The presence of these phytochemicals lends credence to the medicinal benefits it has been used for in the past years.
The physicochemical properties of solid wastes were determined to unravel the individual components of solid wastes such as density, moisture content, and percentage mass. The chemical composition of each waste component was also determined. Methods adopted in the determination included the load count and mass volume methods, the proximate and ultimate analysis method. Collectively, the percentage chemical constituents were obtained from the different solid waste samples analyzed. Energy values obtained from the constituents are 47.6 and 47.10 kJ/kg when Dulong’s and Davies’ formula were applied, respectively. The results revealed that paper and cardboard, metals, plastics, and wood make up the highest composition in the five major waste dumpsites studied in Awka, Nigeria. It also showed that carbon and oxygen contents are high in most of the solid waste components when compared to other chemical constituents and that these wastes can be converted to useful energy in furtherance of sustainable development.
Herein, a proximate analysis of processed Parkia biglobosa (PB) was undertaken. The properties determined for the sample were Moisture content, Ash, Crude fibre, Protein, Fat, and Carbohydrate. Triplicate analysis were carried out for each parameter. The result of the study shows that processed PB seed contains appreciable quantities of nutrients required for the body, allied with low levels of inorganic impurities.
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