Advanced Journal of Chemistry, Section A

This study reports the phytochemical constituents and anti-diarrhoeal potentials of leafextracts of Corchorus olitorius Linn. (Malvaceae) and that of aerial part of Scoporia dulcis Linn. (Lantaginaceae) in rats. Samples were collected in December, 2016 from Nnewi-ichi, Nnewi, Anambra State and Mandara-Abdu, Biu- Borno State, Nigeria, respectively. The phytochemical screening of the C. olitorius and the aerial part of S. dulcis extracts were conducted using standard methods; the results revealed the presence of cardiac glycosides, flavonoids, free and combined reducing sugar and tannins. Saponins was only found in S. dulcis. The diarrhoea was induced in rats by castor oil-induced method. The rats were grouped into 3 rats of 5 groups for each extract; groups I and II served as negative and positive control, while groups III, IV and V as treatment groups. The results showed a non-dose dependent but significant (p<0.05) effects with the lowest mean number of defecations at 6.67±1.70 and 10.33±0.94; and highest protections of 75.00% and 61.27% respectively at the same dose of 300 mg/kg bd. wt. for C. olitorius and S. dulcis. Comparatively, C. olitorius showed significantly (p<0.05) low severity of diarrhoea relative to S. dulcis. Thus, it showed reduction in the faecal output and protection of the rats from diarrhoea induced by castor oil. These observed results could explain their use as anti-diarrhoeal agents in African Traditional Medicine especially in Nigeria where the plants are used.

Usman Hamidu

Oluchukwu Blessing

Bello Faisal

Tijjani Muhammad

Sanda Kyari

Umar Halima

Ibrahim Sule

Advanced Journal of Chemistry-Section A

1. Levels of Castor Oil-Induced Diarrhoea in Rats Treated with Leaf Extract of Corchorus olitorius Linn and Aerial Part Extract of Scoporia dulcis Linn

1. 大鼠灌服蓖麻油后腹泻程度与灌服黄麻叶提取物和垂穗莎草地上部分提取物的关系

The analysis of heavy metals in drinking water from different sources in Lagos state, Nigeria were determined with a view of comparing the effects of level of Industrialization, population density and urbanization on the water quality in the centre of Lagos and off town of Lagos (Ikorodu LGA, a relatively less Industrialized and less Urbanized town of Lagos state) as a case study. The different sources of drinking water considered were wells, boreholes, surface water and tap water. In each of Lagos and Ikorodu. The heavy metals were analysed; Pb, Cd, Cu, Fe, Cr, Zn, Na, Ni, Mg and Ca using Atomic Absorption Spectrophotometer (Perkin-Elmer 305B model with air-acetylene flame). The results show that Pb, Ni, and Mg values exceeded the permissible limits set by WHO, EU and NIS for all the samples from all the sources in all study area while Fe has values above the standards set by all the regulatory bodies in Ikorodu boreholes (i.e. 1.804 mg/L) but all other sources as well as all Lagos samples have values of Fe within the permissible limits (0.2-0.3 mg/L) and this could be traced to the geology of the area. Cu, Zn, Na, Cr, and Ca all have higher values in Lagos centre samples than in Ikorodu samples but are all within the permissible limits. Cd was not detected in any of the samples at all.

Chika Ogbuneke Christian

Prince Ezeibeanu Amara

Comparative Assessment of Trace and Heavy Metals in Available Drinking Water From Different Sources in the Centre of Lagos and off Town (Ikorodu LGA) of Lagos State, Nigeria

拉各斯州中心及伊科罗杜地方政府区不同水源饮用水中痕量和重金属的比较评估

The elemental contents of Ficus sycomorus, Celtis interifolia, Balanites eagyptiaca, Vitex doniana and Haemtostaphis barteri leaves were investigated from Hong Local Government Area of Adamawa state. Atomic absorption spectrophotometer (AAS) was used to determine the elemental level in the plants. For essential elements, sodium was recorded highest in the plant investigated followed by potassium, magnesium and calcium. Zinc was observed highest in Ficus sycomorus followed by Haematostaphis barteri, Vitex doniana. Balanites eagyptisca and Celtis integrifolia. The concentration of copper was recorded highest in Vitex doniana. The levels of cadmium in the plants are in the order: Haematostaphis bareri > Balanites eagyptiaca > Vitex doniana > Ficus sycomorus > Celtis integrifolia. Lead was below the detectable limit of the analytical method used. The elemental compositions of the plants were within the recommended safety limit of WHO, except for cadmium which was slightly above the recommended level.

Tadzabia Kadam

Dimas Blessed Jen

10.33945/SAMI/AJCA.2020.1.10

A simple, rapid, and sensitive spectrophotometric method for the determination of selenium (IV) based on the formation of a 1:2 complex with 4,5-diamino-o-xylene (DAX) as a new sensitive and selective chromogenic reagent is developed. The DAX reacts with selenium (IV) in the presence of citric acid to form a complex in the pH range of 1.0 2.2. The experimental conditions for determining selenium including the influences of pH, reagent concentration and time were evaluated and optimized. Under the optimum experimental conditions, the molar absorptivity of the complex was 1.27×104 L/mol–1 cm–1 at 340 nm. Beer's law is obeyed in the range of 1≃12 µg/mL–1. The limits of detection and quantization were 0.948 µg mL-1 and 3.16 µg/mL-1 respectively. The interfering effect of some cations and anions was also studied. This method can be applied to the direct and easy determination of selenium species as organic, inorganic, Se(VI) and Se(IV) in a variety of real samples.

Tavancheh Mehdi

Beiraghi Asadollah

Spectrophotometric Determination of Selenium (IV) Using 4,5-diamino-o-xylene as a New Chromogenic Reagent

分光光度法测定硒(IV)使用4,5-二氨基邻二甲苯作为新型显色剂

In this study, the economical value of flared gases in gas phase 12 gas refinery was investigated. The economy itself has been examined from two perspectives. The first view on the conversion of fired gases to electrical energy and its revenue generation using the McLaren method. In the second view, the volume of flared gases is equivalent to the amount of gas consumed in industries, households and exports. According to the results, the gross profit from flaring gas to electric energy was $ 123,125 per year. The volume of flared gases was equivalent to the consumption volume of power plants at 0.77%, the equivalent of 3.3%, the consumption volume of the industries was 1.24%, and the domestic and commercial consumption was 0.3%, and it should be noted. Carried out in 2017 and 2018.

Hashemi Fard Kiumars

Shafiee Mojtaba

Recovering Gas Flares from the 12th Gas Phase of the South Pars Gas Refinery

南帕尔斯天然气处理厂第12期天然气阶段火炬恢复

In this study, experimental tie-line data analysis was conducted for the ternary system (water+phosphoric acid+1-pentanol) at 278.2 K and 288.2 K and atmospheric pressure. The compositions of equilibrium phases were determined using the acid-base and the Karl Fisher titration methods and mass balance calculations. Reliability of the experimental data was investigated using the Othmer–Tobias and Hand equations. The UNIQUAC thermodynamic model was applied for correlation of the equilibrium tie-line points. The experimental tie-lines were satisfactorily regressed using the thermodynamic model (%rmsd=2.48). Distribution coefficients and separation factors were determined over the biphasic area. Separation factors were greater than one in all the investigated feeds at the studied temperatures that guarantees the successful separation process. The Kamlet-Taft parameters were applied for the LSER modeling of the obtained distribution coefficients and separation factors. The effect of temperature on extraction process was investigated by adding a modification term in Kamlet-Taft equation. The ternary system revealed good fittings with the modified LSER model. The results showed that, the temperature decrement had positive effect on the extraction ability of the 1-pentanol for separating phosphoric acid from aqueous solution.

Sina Shekarsaraee

Khadijeh Kazemi

Measurement and Correlation of LLE Data for the Ternary System Water+Phosphoric Acid+1-Pentanol at 278.2 K and 288.2 K

三元体系水+磷酸+1-戊醇在278.2 K和288.2 K下的液液平衡数据测定与关联

Azeotropic fluids are considered to be a beneficial discovery used in various operations involving mechanical performance of machines. It is the thermodynamic property of the fluids to absorb heat and dissipate it. For instance, the addition of alcohols in water may increase the performance of these fluids. The objective of this work was to conduct a comparative study on heat pipe performance with different working fluids. The working fluids chosen for the study were water and pure ethanol. The concentrations of ethanol in water differed between 25% and 95%. The material of heat pipes was copper with a sintered wicks structure. The experimental results revealed that, the evaporator temperature for water was lower than that of the ethanol and its mixture at high heating input. However, the heat transported by the heat pipes of water was considerably greater than that of the heat pipes of ethanol and binary fluids as working fluids.

Khalifa Bogarrasa

Moussa Khlifa

Effect of Pure and Binary Azeotropic Fluids on Heat Pipes Performance

纯流体和二元共沸流体对热管性能的影响

In this research study, we have synthesized a library of 2-substituted-1-(2-(5-((5-5-benzoyl-1H-benzo[d][1,2,3]triazole-1-yl)methyl)-2-thioxo-1,3,4-oxadiazol-3(2H)-yl) acetamido)-5-oxo-2,5-dihydro-1H-pyrrole-3-carboxylic acids from 1H-benzo[d][1,2,3] triazole-5-yl)(phenyl)methanone. The synthesized compounds were characterized using 1H NMR, 13C NMR, C,H,N elemental analysis and mass spectroscopy studies. All the compounds were investigated for their in silico ADME prediction properties, in vitro antibacterial activity against four bacterial strains, antifungal activity against two fungal strains, and antimycobacterial activity against the H37Rv. All the compounds revealed good to moderate activity against the bacterial strain. Among all the compounds, 6b and 6f showed better antimycobacterial agents compared with that of the standard drug ciprofloxacin and pyrazinamide, whereas 6a, 6b, and 6e were found to be excellent antifungal and antibacterial agent compared standard drugs clotrimazole and ciprofloxacin. The results of the in-silico analysis depicted that the synthesized compounds had excellent drug-likeness properties.

Keyur Pandya

Bhavesh Dave

Rajesh Patel

Piyush Desai

In Silico Approach Towards the Prediction of Drug-likeness, in Vitro Microbial Investigation and Formation of Dihydropyrrolone Conjugates

计算机模拟方法预测药物相似性、体外微生物研究及二氢吡咯酮缀合物的形成

In this work, sol-gel process was chosen to produce a photocatalytic film to degrade methylene blue. To study the structural and morphological properties, a base sol of TTIP, I-PrOH, and DEA were created. Then, with addition of 45 g/L PEG 2000, 30 g/L TiO2, and 15 g/L PEG 2000+30 g/L TiO2, three other additional sols were produced. The results of the thermogravimetry and differntial thermal analysis indicated that a calcination temperature of 550 °C is sufficient to calcinate all four layers formed in four sols. Structural X-ray studies showed that, calcination temperature is dependent of the composition. The results of this study revealed that, substrate will have an effect on the photocatalytic behavior. It was concluded that the rough sand blasted surface because of creating more film islands that enhances photocatalytic behavior is a better substrate surface condition. Degradation of Mb showed that as a result of more TiO2 corporation in the film produced by the fourth sol, the fourth sol is superior in terms of photocatalytic behavior. Also it was found that, degradation of Mb is dependent on the initial concentration; and the higher initial concentration, the lower is the efficiency.

Mohammad Sajjadnejad

Hooman Karimi Abadeh

Processing of Nanostructured TiO2 and Modification of Its Photocatalytic Behavior for Methylene Blue Degradation

纳米结构TiO2的制备及其光催化降解亚甲基蓝行为的改性研究

In this study, the transition metal chelates of Mn(II), Ni(II) and Cu(II) with Schiff base were synthesized and characterized. The elemental analysis data showed that, the isolated chelates are in 1:1 [M:L] ratio. The molar conductance values revealed that the chelates are none electrolyte in nature. The results of magnetic moment measurements demonstrated that, the chelates of Mn(II) and Cu(II) have unpaired electrons and chelates of Ni(II) is diamagnetic. The infrared spectral data displayed the main coordination sites of (2E, 3E)-3-((2-aminophenyl)imino)butan-2-one oxime towards Mn(II), Ni(II) and Cu(II) ions. The electronic spectrum results of the Schiff base ligand and its chelates suggest that the Mn(II) and Cu(II) chelates have octahedral structure and Ni(II) chelate is square planar.

Abdulsalam Hamil

Khalifa Mosbah Khalifa

Arabya Abdelsalam Almutaleb

Mariam Qasim Nouradean

Synthesis, Characterization and Antibacterial Activity Studies of Some Transition Metal Chelates of Mn(II), Ni(II) and Cu(II) with Schiff Base Derived from Diacetylmonoxime with O-phenylenediamine

合成、表征及某些过渡金属配合物Mn(II)、Ni(II)和Cu(II)与由二乙酰基甲酮与邻苯二胺衍生的席夫碱的抗菌活性研究

ISSN	2645-5676, 2645-7768
h-index	16

出版信息	出版商: Sami Publishing Company，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 2019，原创研究文献占比: ，自引率:， Gold OA占比:

Advanced Journal of Chemistry, Section A

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