Volume-15 ~ Issue-7 ~ July 2022

Abstract: Ocimum species which belong to the family Lamiaceae have several medicinal uses including antimalarial, antimicrobial, antidiabetic, hepato-protective, anti-inflammatory, anti-carcinogenic, cardio-protective and insect repellent. Ocimum suave Willd is used in traditional medicine to treat ulcers, fever, stomach ache, and bronchopneumonic infections. However, information about bioactive principles from the plant is scanty. This study was conducted to determine the chemical composition of Ocimum suave. Hexane and ethyl acetate extracts from the plant were subjected to chromatographic fractionation using organic solvents. This led to isolation and identification of five compounds namely β-amyrin, betulinic acid, lupeol, β-sitosterol and stigmasterol. The structures of the........

Keywords: Ocimum suave; solvent extraction; 1H NMR; 13C NMR; Column chromatography

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Abstract: The presence of heavy metals in water has been an increasing source of concern on a global scale. Hence the need for safe and economical methods for the elimination of heavy metals from contaminated waters has necessitated a worldwide research interest. This study investigates the efficacy of the removal of toxic heavy metal ions, chromium (Cr3+), and copper (Cu2+) by adsorption to a Schiff base of salicylaldehyde and aniline. The adsorption process was studied with respect to contact time and Infra-red (IR) spectral analysis was carried out before and after extraction to indicate possible adsorption of metal ions to the Schiff base. The result showed that adsorption was reached within 10 and 15 minutes respectively. 72.5 percent of chromium was observed to be the maximum removal percentage while 99 percent of copper was also observed to be the maximum removal percentage. Therefore, it is deduced that the Schiff base of salicylaldehyde and aniline removes copper more efficiently than chromium with a shorter time duration.

Keywords: Heavy metals, Wastewater, Adsorption, Schiff base

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Abstract: Medicinal plants are playing vital role in the protection of the people from major ailments such cancer, Hepatitis, CNS disorders etc. Previous study reported thatcancer cells were induced by free radicals and were controlled by more number of mechanisms involved in medicinal chemistry. Among these (SHT) single proton transfer mode / single electron transfer modes (SET) are the important mechanisms to control the free radicals. These modes were involved in the determination of antioxidant ability of phyto compounds. By the release of H / e- while the scavenging activity of phytocompounds through SHT and SET modes, the free radicals were controlled from further chain reactions.The controlling ability determined the antioxidant potential of phytochemical compounds.....

Key words Copper II Neocuproine, Medicinal plants, phyto compounds, Electro chemical workstation, anti-oxidant potential.

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Abstract: The aim of this research is to synthesize and characterize iron pigments locally sourced from enugu magnetite for coating applications. Iron pigment was extacted with appropriate techniques and filtered using permanent magnets. The filtered pigment was characterized using X-ray diffraction (XRD) and X-ray Fluorescence (XRF) to determine the compounds contained therein and their various characteristics. The filtered pigment was heated at temperatures of 800°C and 900°C for 5 hours in the furnace. It was allowed to cool before XRD and XRF characterization. Based on the x-ray diffraction analysis, a single phase Fe3O4 was formed after a 900 ° C heating process for 2 hours. The extracted pigments was utilized in paint production and yield a positive results which concludes that the extracted iron pigment can be successfully used for coating applications.

Keywords: Iron pigment, Characterization, Coating

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