This study was carried out to evaluate the potentials of plantain pseudo stem waste as adsorbent in the removal of Pb2+ from aqueous solution. Filament obtained from Plantain pseudo stem were dried, cut into chips and ground using electric grinder. The powdered sample obtained was soaked in ethanol for 24 hours and wash with water several times to remove the extractive component. It was then dried in the oven. Modification reaction was carried out on the powdered sample using Fenton reagent (Fe2+/H2O2). Both the modified and unmodified adsorbents were used for the adsorption of Pb2+ from aqueous solution. Factors considered were effect of contact time and effect of adsorbate (Pb2+) concentrations. The results revealed that in all the adsorption studies, the adsorption capacity of modified adsorbent was higher than that of the unmodified adsorbent. However, adsorption capacities increase with increase in contact time and decreases with increase in the adsorbate concentration.
Plant leaves play an essential part in health service as source of medicines. Since ancient age, plants are exploited as medicinal source. Various medicinal plants and their purified constituents have exposed helpful therapeutic potentials. The present study revealed the nutritional and antinutritional content of S. alternata which are known to possess the active medicinal chemical constituents. S. alternata has high content of the following essential minerals; Calcium, and Sodium with the following concentrations; 15.82 ± 0.01mg/100g and 10.55 ± 0.01 mg/100g, respectively. While relative amount of Potassium (5.89 ± 0.03mg/100g), Phosphorus (3.97 ± 0.02mg/100g) and Magnesium (6.29 ± 0.02mg/100g) were found to be present in the sample. The presence of Phytochemicals; Saponins, Alkaloids, Flavonoids Tannins and Hydrogen cyanide were evaluated to be 5.23± 0.01 mg/100g, 5.54 ± 0.0102mg/100g, 31.60 ± 0.0202mg/100g, 12.59 ± 0.0102mg/100g and 10.11 ± 0.0102mg/100g respectively. Anti-nutritional factors were recorded, thus; Phytate (5.37 ± 0.02 mg/100g), Oxalate (2.95 ± 0.01 mg/100g), Tannin (4.29 ± 0.01 mg/100g) and Cynogenic glyconide (7.53 ± 0.01 mg/100g). The presence of these phytochemicals and minerals point to the medicinally and nutritionally potent and should be used in the pharmaceutical industries for the formulation of drugs. All the anti-nutrient concentrations found exceeded the acceptable levels for human and animal consumption. However, the levels of anti-nutrients can be reduced through traditional processing techniques such as boiling, steaming, and cooking to make it safer for drugs development.
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