Asian Journal of Applied Chemistry Research <p style="text-align: justify;"><strong>Asian Journal of Applied Chemistry Research (ISSN: 2582-0273)</strong>&nbsp;aims to publish high-quality papers (<a href="/index.php/AJACR/general-guideline-for-authors">Click here for Types of paper</a>) in all areas of 'chemistry and its application'. The journal also encourages the submission of useful reports of negative results. This is a quality controlled,&nbsp;OPEN&nbsp;peer-reviewed, open access INTERNATIONAL journal.</p> en-US (Asian Journal of Applied Chemistry Research) (Asian Journal of Applied Chemistry Research) Sat, 01 Feb 2020 08:15:19 +0000 OJS 60 Synthesis, Characterization, Antibacterial and Thermal Studies of Cu(II) Complex of Thiophene-2- aldehyde Semicarbazone <p>Copper (II) complex of the ligand, thiophene-2-aldehyde semicarbazone was synthesized and characterized. Their structures were explored on the basis of CHN analysis, conductance and magnetic susceptibility measurements, spectral studies (FT-infrared and ESI-MS) and thermogravimetric analysis (TGA). It has been observed from spectral and analytical studies, the copper complex have the composition of [CuL(CH<sub>3</sub>COO)<sub>2</sub>(H<sub>2</sub>O)] [where L is thiophene-2-aldehyde semicarbazone]. The electrospray mass spectrum of the ligand and complex exhibited ion at mass-to charge ratio (m/z) of 169.13 and 368.86 matching the calculated values for the molecular ion of the ligand and complex, respectively. One mole of the ligand behaves as bidentate chelating agents around the Cu(II) ion. From conductivity studies, we obtained that the copper complex of the ligand, thiophene-2-aldehyde semicarbazone had no ionic properties. All data confirmed a trigonal bipyramidal geometry of the complex. Antibacterial activity of the compounds against the microbe <em>Enterobacter aerogenes</em> and <em>Bacillus cereus</em> have been screened to reflect that the complex has higher antimicrobial activity than the free ligand.</p> Dipta Sarker, Md. Yeamin Reza, Md. Masuqul Haque, Rausan Zamir, Md. Ali Asraf ##submission.copyrightStatement## Sat, 01 Feb 2020 00:00:00 +0000 Evaluation of Some Heavy Metals in Soils around Major Parks in Gombe Town, Nigeria <p>The levels of heavy metals (Mn, Ni, Pb, Cr, Zn and Fe in mg/kg) in roadside soils from two main motor parks (Gombe Terminus and Tashan Dukku) in Gombe, Nigeria were assessed with respect to distance from the motor parks. The metals concentrations were determined by atomic absorption spectrophotometry.&nbsp; The results show that iron had the highest concentration in all the soils and can be represented in the following order: Fe &gt; Zn &gt; Pb &gt; Ni &gt; Mn &gt; Cr. The heavy metals concentrations were found to be higher in the roadside soils as compared with the control samples. Thus, the metals concentrations decrease with increase in distance away from the parks.</p> Buhari Magaji, Wilson L. Danbature, Zaccheus Shehu, Mukhtar M. Sani, Abdu M. Sani, Abdulkadir Abubakar ##submission.copyrightStatement## Sat, 01 Feb 2020 00:00:00 +0000 Comparison of the Oil Composition of Clarias gariepinus Collected from Four Lagoons in Lagos, South Western Nigeria <p>Oil composition of Clarias gariepinus collected from various locations were studied and compared. Oils contained in the fishes were extracted using Soxhlet extraction method. The physiochemical properties of the oils were determined using official methods of analysis while the fatty acid composition was analysed using Gas Chromatography- Mass Spectrophotometer. The functional groups present in the oils were also detected using Fourier Transform Infra-red Spectroscopy (FTIR). The oil content for the fishes was in the range of 30.65%-40.57%. The oil extracted from C. gariepinus collected from Badagry lagoon had the highest peroxide and iodine values (5.12 mg KOH/g and 129 mgI2/100 g). The fatty acid composition shows that the oils contains large number of essential polyunsaturated fatty acids except for the oil extracted from C. gariepinus collected from Ikorodu lagoon that contains large number of monounsaturated fatty acids. The FTIR spectra show the presence of carboxylic acid, methylene, esters, ketone and alcohol functional group. It was deduced from this study that habitat had strong impact on the oil composition of C. gariepinus.</p> Adunola Abosede Bello, Adunola Abosede Bello, Oluwasegun Soliu Muniru ##submission.copyrightStatement## Fri, 07 Feb 2020 00:00:00 +0000 Comparison of Ascorbic Acid Content in Some Selected Fruits Samples from Makarfi Local Markets, Kaduna State, Nigeria <p>This study was carried out to determine the ascorbic acid content of some fruits samples sold in Makarfi local market. Six fruits samples were randomly selected and used for the study. The samples were thoroughly washed and rinsed with distilled water. 500 g of each fruit sample (Cucumber, Carrot and Garden egg) were analyzed for both fresh and cooked portions. The samples were crushed and suspensions were made using doubled-distilled water. The extract was filtered to obtained 100 ml from each fruit filtrate which was then placed in a 500 ml volumetric flask and diluted to the mark with distilled water. 25 ml of each solution were treated with 150 ml distilled water and 5 ml of 0.6 molar freshly prepared KI<sub>(aq)</sub>. 5 ml of 1M HCl and 1 ml of starch solution was added to the mixture which was then titrated against a freshly prepared 0.002M potassium iodate solution. The results obtained were used to determine the concentration of ascorbic acid in each sample. The major findings revealed that, fresh cucumber fruit has the highest concentration of ascorbic acid (9.6 x 10<sup>-1</sup> mg/L) followed by garden egg ( 7.1 x 10<sup>-1 </sup>mg/L) and cooked garden egg fruits ( 5.6 x 10<sup>-1 </sup>mg/L). On the other hand, passion fruit (0.06 x 10<sup>-1</sup> mg/L) has the least quantity of ascorbic acid content followed by cooked carrot (1.3 x 10<sup>-1 </sup>mg/L) and tamarind (2.9 x 10<sup>-1 </sup>mg/L)respectively. Some recommendations were made amongst which is that farmers should be enlightened to avoid the use of excessive inorganic fertilizers as it may be the factors that degrade the ascorbic acid content of some edible fruits. Vitamin C content of food get reduced by prolonged storage and over cooking because ascorbic acid is water soluble and it is destroyed by heat. Therefore steaming or microwaving should be encouraged. The study was concluded by emphasizing the importance of the consumption of fruits and the advantages of this to human health and general well-being.</p> Sulaiman Ayodeji Apampa, Isah AbdulAzeez, Salisu Abubakar ##submission.copyrightStatement## Tue, 25 Feb 2020 00:00:00 +0000